From personal_submersibles at psubs.org Tue Dec 3 13:02:02 2019 From: personal_submersibles at psubs.org (Beram Mahmoud via Personal_Submersibles) Date: Tue, 3 Dec 2019 19:02:02 +0100 Subject: [PSUBS-MAILIST] Pressure resistant lie batteries Message-ID: <98C084E6-EBDC-4057-A4ED-719158070DBD@gmx.de> Hello, Does anyone know of an instruction how to make pressure resistant li batterie systems? Is it sufficient to fill up the battery with the bms in an oil filled canister? Best regards Beram From personal_submersibles at psubs.org Tue Dec 3 14:03:54 2019 From: personal_submersibles at psubs.org (irox via Personal_Submersibles) Date: Tue, 3 Dec 2019 11:03:54 -0800 (GMT-08:00) Subject: [PSUBS-MAILIST] Triton sub cabin fire (March 2019) Message-ID: <2116245540.6634.1575399835653@wamui-agami.atl.sa.earthlink.net> I came cross this article about a cabin fire in what I believe is a Triton sub: https://www.businessinsider.com/british-research-sub-surfaces-after-fire-300-feet-below-india-ocean-2019-3 Does anybody have more details on this incident? The article is a bit light on details, although the fact it took 23 minutes to do an emergency ascent from 100meters/330feet to the surface is worth noting. That seems like a long time. Thanks, Ian. From personal_submersibles at psubs.org Tue Dec 3 17:35:54 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 4 Dec 2019 11:35:54 +1300 Subject: [PSUBS-MAILIST] Pressure resistant lie batteries In-Reply-To: <98C084E6-EBDC-4057-A4ED-719158070DBD@gmx.de> References: <98C084E6-EBDC-4057-A4ED-719158070DBD@gmx.de> Message-ID: Hi Beram, there is a firm that makes lithium battery packs for underwater use. https://www.swe.com/ What depth do you want them to go down to? How big a battery pack? I have cut open lithium iron & lithium polymer batteries & they look pretty pressure resistant. The lithium polymer with the soft flat packs look like they might take the pressure better than the Lithium iron in the cylindrical form. The latter having a hard case that might crush & damage the battery. I am not sure about lithium phosphate which is the preferred option for safety. I have a 48V 40Ah lithium phosphate battery that I run an inflatable on. What complicates matters is the wires coming from each cel for balance charging. I am not sure how you handle this. Perhaps encapsulate the balance charging electronics & leave it in the battery enclosure. Alan > On 4/12/2019, at 7:02 AM, Beram Mahmoud via Personal_Submersibles wrote: > > Hello, > Does anyone know of an instruction how to make pressure resistant li batterie systems? > > Is it sufficient to fill up the battery with the bms in an oil filled canister? > > Best regards > Beram > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 3 17:41:29 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 4 Dec 2019 11:41:29 +1300 Subject: [PSUBS-MAILIST] Pressure resistant lie batteries In-Reply-To: <98C084E6-EBDC-4057-A4ED-719158070DBD@gmx.de> References: <98C084E6-EBDC-4057-A4ED-719158070DBD@gmx.de> Message-ID: <4336E505-98F7-4B0C-95F7-23097A268047@yahoo.com> Beram, additionally, a lot of the balance charging electronic boards have large electrolytic capacitors & if you just stick them in oil they may collapse under pressure. Alan > On 4/12/2019, at 7:02 AM, Beram Mahmoud via Personal_Submersibles wrote: > > Hello, > Does anyone know of an instruction how to make pressure resistant li batterie systems? > > Is it sufficient to fill up the battery with the bms in an oil filled canister? > > Best regards > Beram > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles From personal_submersibles at psubs.org Tue Dec 3 17:51:18 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 4 Dec 2019 11:51:18 +1300 Subject: [PSUBS-MAILIST] Pressure resistant lie batteries In-Reply-To: <98C084E6-EBDC-4057-A4ED-719158070DBD@gmx.de> References: <98C084E6-EBDC-4057-A4ED-719158070DBD@gmx.de> Message-ID: Beram, here's an article that says the Panasonic 18650 batteries were tested to 305 meters before the housing collapsed. https://www.sciencedirect.com/science/article/abs/pii/S037877531001058X Alan > On 4/12/2019, at 7:02 AM, Beram Mahmoud via Personal_Submersibles wrote: > > Hello, > Does anyone know of an instruction how to make pressure resistant li batterie systems? > > Is it sufficient to fill up the battery with the bms in an oil filled canister? > > Best regards > Beram > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 3 18:53:44 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Tue, 3 Dec 2019 23:53:44 +0000 (UTC) Subject: [PSUBS-MAILIST] Triton sub cabin fire (March 2019) In-Reply-To: <2116245540.6634.1575399835653@wamui-agami.atl.sa.earthlink.net> References: <2116245540.6634.1575399835653@wamui-agami.atl.sa.earthlink.net> Message-ID: <2027585528.2974478.1575417224135@mail.yahoo.com> About 14 feet per minute which does seem exceedingly slow especially in an emergency situation.? The press often gets such details wrong, perhaps that 23 minutes included getting the sub back on board the support ship. Jon On Tuesday, December 3, 2019, 04:15:39 PM EST, irox via Personal_Submersibles wrote: I came cross this article about a cabin fire in what I believe is a Triton sub: https://www.businessinsider.com/british-research-sub-surfaces-after-fire-300-feet-below-india-ocean-2019-3 Does anybody have more details on this incident? The article is a bit light on details, although the fact it took 23 minutes to do an emergency ascent from 100meters/330feet to the surface is worth noting.? That seems like a long time. Thanks, Ian. _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 3 19:12:37 2019 From: personal_submersibles at psubs.org (River Dolfi via Personal_Submersibles) Date: Tue, 3 Dec 2019 16:12:37 -0800 Subject: [PSUBS-MAILIST] Pressure resistant lie batteries In-Reply-To: References: Message-ID: The cells are simple, the BMS is the complicated part. For a pressure-tolerant battery, you would either need to house off-the-shelf BMS electronics in the pressure hull, or in a separate pressure-housings. There are commercially available, pressure-tolerant lithium-polymer batteries, and they all use pouch-style cells. Alan, you've correctly deduced that the cylindrical cells don't hold up. Lithium Iron Phosphate cells are safe enough, that I would consider putting them inside of the pressure hull. They don't use a flammable or pyrophoric electrolyte like Lithium Polymer, so won't burst into flames if punctured, or overloaded. They also don't off gas hydrogen like lead acid (And yes, even AGM's can and do offgas hydrogen) or have acid that can spill or boil over. A 12V or 24V LiFePO4 battery string would be the ideal candidate for installation in a K250. Probably on the whole safer than lead-acid, lighter, and would be able to be charged much quicker, practically a lunch-break. -River J. Dolfi rdolfi7 at gmail.com On Tue, Dec 3, 2019 at 2:42 PM via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Send Personal_Submersibles mailing list submissions to > personal_submersibles at psubs.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://www.whoweb.com/mailman/listinfo.cgi/personal_submersibles > or, via email, send a message with subject or body 'help' to > personal_submersibles-request at psubs.org > > You can reach the person managing the list at > personal_submersibles-owner at psubs.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Personal_Submersibles digest..." > > > Today's Topics: > > 1. PanelPilotACE (Pete Niedermayr via Personal_Submersibles) > 2. Re: PanelPilotACE (Alan via Personal_Submersibles) > 3. Pressure resistant lie batteries > (Beram Mahmoud via Personal_Submersibles) > 4. Triton sub cabin fire (March 2019) > (irox via Personal_Submersibles) > 5. Re: Pressure resistant lie batteries > (Alan via Personal_Submersibles) > 6. Re: Pressure resistant lie batteries > (Alan via Personal_Submersibles) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 19 Nov 2019 00:07:17 +0000 (UTC) > From: Pete Niedermayr via Personal_Submersibles > > To: "personal_submersibles at psubs.org" > > Subject: [PSUBS-MAILIST] PanelPilotACE > Message-ID: <1384623172.2927077.1574122037541 at mail.yahoo.com> > Content-Type: text/plain; charset="utf-8" > > Just saw this on SV Seeker > PanelPilotACE PanelPilot Displays - Lascar Electronics > > | > | > | | > PanelPilotACE PanelPilot Displays - Lascar Electronics > > > | > > | > > | > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://www.whoweb.com/pipermail/personal_submersibles/attachments/20191119/7d9711b3/attachment-0001.html > > > > ------------------------------ > > Message: 2 > Date: Tue, 19 Nov 2019 13:32:30 +1300 > From: Alan via Personal_Submersibles > To: Personal Submersibles General Discussion > > Subject: Re: [PSUBS-MAILIST] PanelPilotACE > Message-ID: <3E8BF536-891A-4110-8A76-79170BE781A6 at yahoo.com> > Content-Type: text/plain; charset="us-ascii" > > Looks a great product Pete, & cheap. > No writing of code! > This video gives a good explanation of it. > https://m.youtube.com/watch?v=EV_m3dcdRc8&t= > Alan > > > On 19/11/2019, at 1:07 PM, Pete Niedermayr via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > > > Just saw this on SV Seeker > > > > PanelPilotACE PanelPilot Displays - Lascar Electronics > > > > PanelPilotACE PanelPilot Displays - Lascar Electronics > > > > > > _______________________________________________ > > Personal_Submersibles mailing list > > Personal_Submersibles at psubs.org > > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://www.whoweb.com/pipermail/personal_submersibles/attachments/20191119/78d87a89/attachment-0001.html > > > > ------------------------------ > > Message: 3 > Date: Tue, 3 Dec 2019 19:02:02 +0100 > From: Beram Mahmoud via Personal_Submersibles > > To: Personal Submersibles General Discussion > > Subject: [PSUBS-MAILIST] Pressure resistant lie batteries > Message-ID: <98C084E6-EBDC-4057-A4ED-719158070DBD at gmx.de> > Content-Type: text/plain; charset=us-ascii > > Hello, > Does anyone know of an instruction how to make pressure resistant li > batterie systems? > > Is it sufficient to fill up the battery with the bms in an oil filled > canister? > > Best regards > Beram > > > > ------------------------------ > > Message: 4 > Date: Tue, 3 Dec 2019 11:03:54 -0800 (GMT-08:00) > From: irox via Personal_Submersibles > To: personal_submersibles at psubs.org > Subject: [PSUBS-MAILIST] Triton sub cabin fire (March 2019) > Message-ID: > <2116245540.6634.1575399835653 at wamui-agami.atl.sa.earthlink.net> > Content-Type: text/plain; charset=UTF-8 > > > I came cross this article about a cabin fire in what I believe is a Triton > sub: > > https://www.businessinsider.com/british-research-sub-surfaces-after-fire-300-feet-below-india-ocean-2019-3 > > Does anybody have more details on this incident? > > The article is a bit light on details, although the fact it took 23 > minutes to do an emergency ascent from 100meters/330feet to the surface is > worth noting. That seems like a long time. > > Thanks, > Ian. > > > ------------------------------ > > Message: 5 > Date: Wed, 4 Dec 2019 11:35:54 +1300 > From: Alan via Personal_Submersibles > To: Personal Submersibles General Discussion > > Subject: Re: [PSUBS-MAILIST] Pressure resistant lie batteries > Message-ID: > Content-Type: text/plain; charset="us-ascii" > > Hi Beram, > there is a firm that makes lithium battery packs for underwater use. > https://www.swe.com/ > What depth do you want them to go down to? How big a battery pack? > I have cut open lithium iron & lithium polymer batteries & they look > pretty pressure resistant. The lithium polymer with the soft flat packs > look > like they might take the pressure better than the Lithium iron in the > cylindrical > form. The latter having a hard case that might crush & damage the battery. > I am not sure about lithium phosphate which is the preferred option for > safety. > I have a 48V 40Ah lithium phosphate battery that I run an inflatable on. > What complicates matters is the wires coming from each cel for balance > charging. I am not sure how you handle this. Perhaps encapsulate the > balance > charging electronics & leave it in the battery enclosure. > Alan > > > > > On 4/12/2019, at 7:02 AM, Beram Mahmoud via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > > > Hello, > > Does anyone know of an instruction how to make pressure resistant li > batterie systems? > > > > Is it sufficient to fill up the battery with the bms in an oil filled > canister? > > > > Best regards > > Beram > > > > _______________________________________________ > > Personal_Submersibles mailing list > > Personal_Submersibles at psubs.org > > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://www.whoweb.com/pipermail/personal_submersibles/attachments/20191204/68a58287/attachment-0001.html > > > > ------------------------------ > > Message: 6 > Date: Wed, 4 Dec 2019 11:41:29 +1300 > From: Alan via Personal_Submersibles > To: Personal Submersibles General Discussion > > Subject: Re: [PSUBS-MAILIST] Pressure resistant lie batteries > Message-ID: <4336E505-98F7-4B0C-95F7-23097A268047 at yahoo.com> > Content-Type: text/plain; charset=us-ascii > > Beram, > additionally, a lot of the balance charging electronic boards have large > electrolytic > capacitors & if you just stick them in oil they may collapse under > pressure. > Alan > > > On 4/12/2019, at 7:02 AM, Beram Mahmoud via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > > > Hello, > > Does anyone know of an instruction how to make pressure resistant li > batterie systems? > > > > Is it sufficient to fill up the battery with the bms in an oil filled > canister? > > > > Best regards > > Beram > > > > _______________________________________________ > > Personal_Submersibles mailing list > > Personal_Submersibles at psubs.org > > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.whoweb.com/mailman/listinfo.cgi/personal_submersibles > > > ------------------------------ > > End of Personal_Submersibles Digest, Vol 78, Issue 1 > **************************************************** > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 3 20:15:59 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 4 Dec 2019 14:15:59 +1300 Subject: [PSUBS-MAILIST] Pressure resistant lie batteries In-Reply-To: References: Message-ID: <5F1F3250-4592-4935-8574-1A5D120843FD@yahoo.com> River, thanks some good information there. Just a concern that if you housed an off the shelf BMS in the submarine hull, the voltage drop down those tiny balance wires could be significant over the length of wire to the last battery in the pod. And also you would need dozens of wires coming in through the hull. Alan > On 4/12/2019, at 1:12 PM, River Dolfi via Personal_Submersibles wrote: > > The cells are simple, the BMS is the complicated part. > For a pressure-tolerant battery, you would either need to house off-the-shelf BMS electronics in the pressure hull, or in a separate pressure-housings. > > There are commercially available, pressure-tolerant lithium-polymer batteries, and they all use pouch-style cells. Alan, you've correctly deduced that the cylindrical cells don't hold up. > > Lithium Iron Phosphate cells are safe enough, that I would consider putting them inside of the pressure hull. They don't use a flammable or pyrophoric electrolyte like Lithium Polymer, so won't burst into flames if punctured, or overloaded. They also don't off gas hydrogen like lead acid (And yes, even AGM's can and do offgas hydrogen) or have acid that can spill or boil over. > > A 12V or 24V LiFePO4 battery string would be the ideal candidate for installation in a K250. Probably on the whole safer than lead-acid, lighter, and would be able to be charged much quicker, practically a lunch-break. > > -River J. Dolfi > rdolfi7 at gmail.com > > >> On Tue, Dec 3, 2019 at 2:42 PM via Personal_Submersibles wrote: >> Send Personal_Submersibles mailing list submissions to >> personal_submersibles at psubs.org >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://www.whoweb.com/mailman/listinfo.cgi/personal_submersibles >> or, via email, send a message with subject or body 'help' to >> personal_submersibles-request at psubs.org >> >> You can reach the person managing the list at >> personal_submersibles-owner at psubs.org >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Personal_Submersibles digest..." >> >> >> Today's Topics: >> >> 1. PanelPilotACE (Pete Niedermayr via Personal_Submersibles) >> 2. Re: PanelPilotACE (Alan via Personal_Submersibles) >> 3. Pressure resistant lie batteries >> (Beram Mahmoud via Personal_Submersibles) >> 4. Triton sub cabin fire (March 2019) >> (irox via Personal_Submersibles) >> 5. Re: Pressure resistant lie batteries >> (Alan via Personal_Submersibles) >> 6. Re: Pressure resistant lie batteries >> (Alan via Personal_Submersibles) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Tue, 19 Nov 2019 00:07:17 +0000 (UTC) >> From: Pete Niedermayr via Personal_Submersibles >> >> To: "personal_submersibles at psubs.org" >> >> Subject: [PSUBS-MAILIST] PanelPilotACE >> Message-ID: <1384623172.2927077.1574122037541 at mail.yahoo.com> >> Content-Type: text/plain; charset="utf-8" >> >> Just saw this on SV Seeker >> PanelPilotACE PanelPilot Displays - Lascar Electronics >> >> | >> | >> | | >> PanelPilotACE PanelPilot Displays - Lascar Electronics >> >> >> | >> >> | >> >> | >> >> >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> >> ------------------------------ >> >> Message: 2 >> Date: Tue, 19 Nov 2019 13:32:30 +1300 >> From: Alan via Personal_Submersibles >> To: Personal Submersibles General Discussion >> >> Subject: Re: [PSUBS-MAILIST] PanelPilotACE >> Message-ID: <3E8BF536-891A-4110-8A76-79170BE781A6 at yahoo.com> >> Content-Type: text/plain; charset="us-ascii" >> >> Looks a great product Pete, & cheap. >> No writing of code! >> This video gives a good explanation of it. >> https://m.youtube.com/watch?v=EV_m3dcdRc8&t= >> Alan >> >> > On 19/11/2019, at 1:07 PM, Pete Niedermayr via Personal_Submersibles wrote: >> > >> > Just saw this on SV Seeker >> > >> > PanelPilotACE PanelPilot Displays - Lascar Electronics >> > >> > PanelPilotACE PanelPilot Displays - Lascar Electronics >> > >> > >> > _______________________________________________ >> > Personal_Submersibles mailing list >> > Personal_Submersibles at psubs.org >> > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> >> ------------------------------ >> >> Message: 3 >> Date: Tue, 3 Dec 2019 19:02:02 +0100 >> From: Beram Mahmoud via Personal_Submersibles >> >> To: Personal Submersibles General Discussion >> >> Subject: [PSUBS-MAILIST] Pressure resistant lie batteries >> Message-ID: <98C084E6-EBDC-4057-A4ED-719158070DBD at gmx.de> >> Content-Type: text/plain; charset=us-ascii >> >> Hello, >> Does anyone know of an instruction how to make pressure resistant li batterie systems? >> >> Is it sufficient to fill up the battery with the bms in an oil filled canister? >> >> Best regards >> Beram >> >> >> >> ------------------------------ >> >> Message: 4 >> Date: Tue, 3 Dec 2019 11:03:54 -0800 (GMT-08:00) >> From: irox via Personal_Submersibles >> To: personal_submersibles at psubs.org >> Subject: [PSUBS-MAILIST] Triton sub cabin fire (March 2019) >> Message-ID: >> <2116245540.6634.1575399835653 at wamui-agami.atl.sa.earthlink.net> >> Content-Type: text/plain; charset=UTF-8 >> >> >> I came cross this article about a cabin fire in what I believe is a Triton sub: >> https://www.businessinsider.com/british-research-sub-surfaces-after-fire-300-feet-below-india-ocean-2019-3 >> >> Does anybody have more details on this incident? >> >> The article is a bit light on details, although the fact it took 23 minutes to do an emergency ascent from 100meters/330feet to the surface is worth noting. That seems like a long time. >> >> Thanks, >> Ian. >> >> >> ------------------------------ >> >> Message: 5 >> Date: Wed, 4 Dec 2019 11:35:54 +1300 >> From: Alan via Personal_Submersibles >> To: Personal Submersibles General Discussion >> >> Subject: Re: [PSUBS-MAILIST] Pressure resistant lie batteries >> Message-ID: >> Content-Type: text/plain; charset="us-ascii" >> >> Hi Beram, >> there is a firm that makes lithium battery packs for underwater use. >> https://www.swe.com/ >> What depth do you want them to go down to? How big a battery pack? >> I have cut open lithium iron & lithium polymer batteries & they look >> pretty pressure resistant. The lithium polymer with the soft flat packs look >> like they might take the pressure better than the Lithium iron in the cylindrical >> form. The latter having a hard case that might crush & damage the battery. >> I am not sure about lithium phosphate which is the preferred option for safety. >> I have a 48V 40Ah lithium phosphate battery that I run an inflatable on. >> What complicates matters is the wires coming from each cel for balance >> charging. I am not sure how you handle this. Perhaps encapsulate the balance >> charging electronics & leave it in the battery enclosure. >> Alan >> >> >> >> > On 4/12/2019, at 7:02 AM, Beram Mahmoud via Personal_Submersibles wrote: >> > >> > Hello, >> > Does anyone know of an instruction how to make pressure resistant li batterie systems? >> > >> > Is it sufficient to fill up the battery with the bms in an oil filled canister? >> > >> > Best regards >> > Beram >> > >> > _______________________________________________ >> > Personal_Submersibles mailing list >> > Personal_Submersibles at psubs.org >> > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> >> ------------------------------ >> >> Message: 6 >> Date: Wed, 4 Dec 2019 11:41:29 +1300 >> From: Alan via Personal_Submersibles >> To: Personal Submersibles General Discussion >> >> Subject: Re: [PSUBS-MAILIST] Pressure resistant lie batteries >> Message-ID: <4336E505-98F7-4B0C-95F7-23097A268047 at yahoo.com> >> Content-Type: text/plain; charset=us-ascii >> >> Beram, >> additionally, a lot of the balance charging electronic boards have large electrolytic >> capacitors & if you just stick them in oil they may collapse under pressure. >> Alan >> >> > On 4/12/2019, at 7:02 AM, Beram Mahmoud via Personal_Submersibles wrote: >> > >> > Hello, >> > Does anyone know of an instruction how to make pressure resistant li batterie systems? >> > >> > Is it sufficient to fill up the battery with the bms in an oil filled canister? >> > >> > Best regards >> > Beram >> > >> > _______________________________________________ >> > Personal_Submersibles mailing list >> > Personal_Submersibles at psubs.org >> > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> >> >> >> >> ------------------------------ >> >> Subject: Digest Footer >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.whoweb.com/mailman/listinfo.cgi/personal_submersibles >> >> >> ------------------------------ >> >> End of Personal_Submersibles Digest, Vol 78, Issue 1 >> **************************************************** > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 3 22:04:14 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Tue, 3 Dec 2019 19:04:14 -0800 Subject: [PSUBS-MAILIST] Pressure resistant lie batteries In-Reply-To: References: <98C084E6-EBDC-4057-A4ED-719158070DBD@gmx.de> Message-ID: Be prepared to pay a pretty penny for the SWE batteries. Last time I checked they were going to cost more than the submarine. Other option would be "Battle Born" batteries with build in BMS and build your own pressure case if you really need them to go outside the pressure hull. These LiFePo4 batteries also come with a 10yr warranty which is certainly worth looking into. https://battlebornbatteries.com/ Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Tue, Dec 3, 2019 at 2:37 PM Alan via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi Beram, > there is a firm that makes lithium battery packs for underwater use. > https://www.swe.com/ > What depth do you want them to go down to? How big a battery pack? > I have cut open lithium iron & lithium polymer batteries & they look > pretty pressure resistant. The lithium polymer with the soft flat packs > look > like they might take the pressure better than the Lithium iron in the > cylindrical > form. The latter having a hard case that might crush & damage the battery. > I am not sure about lithium phosphate which is the preferred option for > safety. > I have a 48V 40Ah lithium phosphate battery that I run an inflatable on. > What complicates matters is the wires coming from each cel for balance > charging. I am not sure how you handle this. Perhaps encapsulate the > balance > charging electronics & leave it in the battery enclosure. > Alan > > > > On 4/12/2019, at 7:02 AM, Beram Mahmoud via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > Hello, > Does anyone know of an instruction how to make pressure resistant li > batterie systems? > > Is it sufficient to fill up the battery with the bms in an oil filled > canister? > > Best regards > Beram > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 3 23:53:40 2019 From: personal_submersibles at psubs.org (irox via Personal_Submersibles) Date: Tue, 3 Dec 2019 20:53:40 -0800 (GMT-08:00) Subject: [PSUBS-MAILIST] Triton sub cabin fire (March 2019) Message-ID: <685823978.12639.1575435221167@wamui-agami.atl.sa.earthlink.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Dec 4 12:28:52 2019 From: personal_submersibles at psubs.org (irox via Personal_Submersibles) Date: Wed, 4 Dec 2019 09:28:52 -0800 (GMT-08:00) Subject: [PSUBS-MAILIST] 10 hour video of diving two Triton subs Message-ID: <1922910281.4370.1575480532224@wamui-cinderella.atl.sa.earthlink.net> Hi, I think somebody may have posted this before, but in case they didn't and for folks who missed it, this is a 10 hour live stream of diving two Triton subs and an ROV in the Indian Ocean. Part of the nektonmission.org project. As well as the underwater stuff, this covers the launching and pre-dive checks for both subs, which may be of particular interest to psubbers. Video here: https://www.youtube.com/watch?v=g8GpdEyT45c Cheers! Ian. From personal_submersibles at psubs.org Thu Dec 12 14:47:36 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Thu, 12 Dec 2019 19:47:36 +0000 (UTC) Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: Message-ID: <198486902.12751997.1576180056241@mail.yahoo.com> Here is a short video of my new all aluminum are for E3000Hank ----- Forwarded Message ----- From: marta duffek To: "hanker_20032000 at yahoo.ca" Sent: Thursday, December 12, 2019, 12:46:28 PM MSTSubject: https://youtu.be/Lm2smSqGs94 https://youtu.be/Lm2smSqGs94 -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 15:08:58 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Thu, 12 Dec 2019 12:08:58 -0800 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: <198486902.12751997.1576180056241@mail.yahoo.com> References: <198486902.12751997.1576180056241@mail.yahoo.com> Message-ID: Hi Hank, the link is listed as private. Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Here is a short video of my new all aluminum are for E3000 > Hank > > ----- Forwarded Message ----- > *From:* marta duffek > *To:* "hanker_20032000 at yahoo.ca" > *Sent:* Thursday, December 12, 2019, 12:46:28 PM MST > *Subject:* > > https://youtu.be/Lm2smSqGs94 > https://youtu.be/Lm2smSqGs94 > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 16:27:40 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Thu, 12 Dec 2019 21:27:40 +0000 (UTC) Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: <198486902.12751997.1576180056241@mail.yahoo.com> Message-ID: <1942284957.12779901.1576186060930@mail.yahoo.com> Thanks David, it should work nowHank On Thursday, December 12, 2019, 1:49:25 PM MST, David Colombo via Personal_Submersibles wrote: Hi Hank, the link is listed as private. Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles wrote: Here is a short video of my new all aluminum are for E3000Hank ----- Forwarded Message ----- From: marta duffek To: "hanker_20032000 at yahoo.ca" Sent: Thursday, December 12, 2019, 12:46:28 PM MSTSubject: https://youtu.be/Lm2smSqGs94 https://youtu.be/Lm2smSqGs94 _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 17:10:47 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Thu, 12 Dec 2019 22:10:47 +0000 (UTC) Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: <198486902.12751997.1576180056241@mail.yahoo.com> References: <198486902.12751997.1576180056241@mail.yahoo.com> Message-ID: <1815269102.7649530.1576188647529@mail.yahoo.com> Very cool, Hank. On Thursday, December 12, 2019, 04:19:48 PM EST, hank pronk via Personal_Submersibles wrote: Here is a short video of my new all aluminum are for E3000Hank ----- Forwarded Message ----- From: marta duffek To: "hanker_20032000 at yahoo.ca" Sent: Thursday, December 12, 2019, 12:46:28 PM MSTSubject: https://youtu.be/Lm2smSqGs94 https://youtu.be/Lm2smSqGs94 _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 17:25:52 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Thu, 12 Dec 2019 17:25:52 -0500 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: <1942284957.12779901.1576186060930@mail.yahoo.com> References: <198486902.12751997.1576180056241@mail.yahoo.com> <1942284957.12779901.1576186060930@mail.yahoo.com> Message-ID: Go Hank!!! BTW for the rest of you, Hand and I have a little initiative underway. I'm planning of brazenly copying his design to equip Shackleton with an arm. The deal is I'll make blueprints to do so, and they'll get posted as an open source manipulator design when done. Best, Alec On Thu, Dec 12, 2019 at 4:28 PM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Thanks David, it should work now > Hank > > On Thursday, December 12, 2019, 1:49:25 PM MST, David Colombo via > Personal_Submersibles wrote: > > > Hi Hank, the link is listed as private. > Best Regards, > David Colombo > > 804 College Ave > Santa Rosa, CA. 95404 > (707) 536-1424 > www.SeaQuestor.com > > > > On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > Here is a short video of my new all aluminum are for E3000 > Hank > > ----- Forwarded Message ----- > *From:* marta duffek > *To:* "hanker_20032000 at yahoo.ca" > *Sent:* Thursday, December 12, 2019, 12:46:28 PM MST > *Subject:* > > https://youtu.be/Lm2smSqGs94 > https://youtu.be/Lm2smSqGs94 > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 17:54:41 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Thu, 12 Dec 2019 14:54:41 -0800 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: <198486902.12751997.1576180056241@mail.yahoo.com> <1942284957.12779901.1576186060930@mail.yahoo.com> Message-ID: Alec, If you need my Acad services, I would be happy to help. Im interested in building a version as well. Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Thu, Dec 12, 2019 at 2:26 PM Alec Smyth via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Go Hank!!! BTW for the rest of you, Hand and I have a little initiative > underway. I'm planning of brazenly copying his design to equip Shackleton > with an arm. The deal is I'll make blueprints to do so, and they'll get > posted as an open source manipulator design when done. > > Best, > Alec > > On Thu, Dec 12, 2019 at 4:28 PM hank pronk via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > >> Thanks David, it should work now >> Hank >> >> On Thursday, December 12, 2019, 1:49:25 PM MST, David Colombo via >> Personal_Submersibles wrote: >> >> >> Hi Hank, the link is listed as private. >> Best Regards, >> David Colombo >> >> 804 College Ave >> Santa Rosa, CA. 95404 >> (707) 536-1424 >> www.SeaQuestor.com >> >> >> >> On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles < >> personal_submersibles at psubs.org> wrote: >> >> Here is a short video of my new all aluminum are for E3000 >> Hank >> >> ----- Forwarded Message ----- >> *From:* marta duffek >> *To:* "hanker_20032000 at yahoo.ca" >> *Sent:* Thursday, December 12, 2019, 12:46:28 PM MST >> *Subject:* >> >> https://youtu.be/Lm2smSqGs94 >> https://youtu.be/Lm2smSqGs94 >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 18:47:56 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Fri, 13 Dec 2019 12:47:56 +1300 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: <198486902.12751997.1576180056241@mail.yahoo.com> <1942284957.12779901.1576186060930@mail.yahoo.com> Message-ID: <8F06CD8F-2345-4AB4-8333-4E67937B1339@yahoo.com> Congratulations Hank. How did you go about the oil compensating of the manipulators? Alan > On 13/12/2019, at 11:25 AM, Alec Smyth via Personal_Submersibles wrote: > > Go Hank!!! BTW for the rest of you, Hand and I have a little initiative underway. I'm planning of brazenly copying his design to equip Shackleton with an arm. The deal is I'll make blueprints to do so, and they'll get posted as an open source manipulator design when done. > > Best, > Alec > >> On Thu, Dec 12, 2019 at 4:28 PM hank pronk via Personal_Submersibles wrote: >> Thanks David, it should work now >> Hank >> >> On Thursday, December 12, 2019, 1:49:25 PM MST, David Colombo via Personal_Submersibles wrote: >> >> >> Hi Hank, the link is listed as private. >> Best Regards, >> David Colombo >> >> 804 College Ave >> Santa Rosa, CA. 95404 >> (707) 536-1424 >> www.SeaQuestor.com >> >> >> >> On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles wrote: >> Here is a short video of my new all aluminum are for E3000 >> Hank >> >> ----- Forwarded Message ----- >> From: marta duffek >> To: "hanker_20032000 at yahoo.ca" >> Sent: Thursday, December 12, 2019, 12:46:28 PM MST >> Subject: >> >> https://youtu.be/Lm2smSqGs94 >> https://youtu.be/Lm2smSqGs94 >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 18:57:10 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Fri, 13 Dec 2019 12:57:10 +1300 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: <198486902.12751997.1576180056241@mail.yahoo.com> <1942284957.12779901.1576186060930@mail.yahoo.com> Message-ID: <68FCD3F8-142A-4DCC-9C64-C323AE312643@yahoo.com> Alec, will be interested in the progress! I am in initial stages of designing a manipulator although not as strong as Hank's. I am wanting to use brushless underwater motors ( from blue robotics) for the gripper function, wrist rotation, first joint & base rotation & pneumatic cylinders for another 2 joints. Also planning on having a cutting function to avoid the necessity of droppable thrusters & a camera on the wrist for close up viewing & as a periscope. Alan > On 13/12/2019, at 11:25 AM, Alec Smyth via Personal_Submersibles wrote: > > Go Hank!!! BTW for the rest of you, Hand and I have a little initiative underway. I'm planning of brazenly copying his design to equip Shackleton with an arm. The deal is I'll make blueprints to do so, and they'll get posted as an open source manipulator design when done. > > Best, > Alec > >> On Thu, Dec 12, 2019 at 4:28 PM hank pronk via Personal_Submersibles wrote: >> Thanks David, it should work now >> Hank >> >> On Thursday, December 12, 2019, 1:49:25 PM MST, David Colombo via Personal_Submersibles wrote: >> >> >> Hi Hank, the link is listed as private. >> Best Regards, >> David Colombo >> >> 804 College Ave >> Santa Rosa, CA. 95404 >> (707) 536-1424 >> www.SeaQuestor.com >> >> >> >> On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles wrote: >> Here is a short video of my new all aluminum are for E3000 >> Hank >> >> ----- Forwarded Message ----- >> From: marta duffek >> To: "hanker_20032000 at yahoo.ca" >> Sent: Thursday, December 12, 2019, 12:46:28 PM MST >> Subject: >> >> https://youtu.be/Lm2smSqGs94 >> https://youtu.be/Lm2smSqGs94 >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 19:42:32 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Fri, 13 Dec 2019 00:42:32 +0000 (UTC) Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: <8F06CD8F-2345-4AB4-8333-4E67937B1339@yahoo.com> References: <198486902.12751997.1576180056241@mail.yahoo.com> <1942284957.12779901.1576186060930@mail.yahoo.com> <8F06CD8F-2345-4AB4-8333-4E67937B1339@yahoo.com> Message-ID: <1946802981.7455109.1576197752160@mail.yahoo.com> Alan,Thanks', I drill oil passages in the actuator body to allow free flow of the oil. ?I also now use the oil lines to house the power wires, thus eliminating penetrators. ?I have a oil filled manifold with a single 8 wire penetrator to send power to the actuators. ?The manifold is connected to a ?suspension air bag full of oil. ?There is also a vent plug in the actuator to allow for oil filling.Hank On Thursday, December 12, 2019, 4:48:19 PM MST, Alan via Personal_Submersibles wrote: Congratulations Hank.How did you go about the oil compensating of the manipulators?Alan On 13/12/2019, at 11:25 AM, Alec Smyth via Personal_Submersibles wrote: Go Hank!!! BTW for the rest of you, Hand and I have a little initiative underway. I'm planning of brazenly copying his design to equip Shackleton with an arm. The deal is I'll make blueprints to do so, and they'll get posted as an open source manipulator design when done. Best, Alec On Thu, Dec 12, 2019 at 4:28 PM hank pronk via Personal_Submersibles wrote: Thanks David, it should work nowHank On Thursday, December 12, 2019, 1:49:25 PM MST, David Colombo via Personal_Submersibles wrote: Hi Hank, the link is listed as private. Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles wrote: Here is a short video of my new all aluminum are for E3000Hank ----- Forwarded Message ----- From: marta duffek To: "hanker_20032000 at yahoo.ca" Sent: Thursday, December 12, 2019, 12:46:28 PM MSTSubject: https://youtu.be/Lm2smSqGs94 https://youtu.be/Lm2smSqGs94 _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 19:49:20 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Thu, 12 Dec 2019 16:49:20 -0800 Subject: [PSUBS-MAILIST] (no subject) Message-ID: <20191212164920.32ADF9@m0117457.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 20:07:05 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Fri, 13 Dec 2019 14:07:05 +1300 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: <1946802981.7455109.1576197752160@mail.yahoo.com> References: <198486902.12751997.1576180056241@mail.yahoo.com> <1942284957.12779901.1576186060930@mail.yahoo.com> <8F06CD8F-2345-4AB4-8333-4E67937B1339@yahoo.com> <1946802981.7455109.1576197752160@mail.yahoo.com> Message-ID: <9016D1F3-2DE6-463A-ABF6-04820E2E76DA@yahoo.com> Hank, that sounds a good plan. In my thrusters I send my compensating oil down the wiring tube. Alan > On 13/12/2019, at 1:42 PM, hank pronk via Personal_Submersibles wrote: > > Alan, > Thanks', I drill oil passages in the actuator body to allow free flow of the oil. I also now use the oil lines to house the power wires, thus eliminating penetrators. I have a oil filled manifold with a single 8 wire penetrator to send power to the actuators. The manifold is connected to a suspension air bag full of oil. There is also a vent plug in the actuator to allow for oil filling. > Hank > > > On Thursday, December 12, 2019, 4:48:19 PM MST, Alan via Personal_Submersibles wrote: > > > Congratulations Hank. > How did you go about the oil compensating of the manipulators? > Alan > >> On 13/12/2019, at 11:25 AM, Alec Smyth via Personal_Submersibles wrote: >> >> Go Hank!!! BTW for the rest of you, Hand and I have a little initiative underway. I'm planning of brazenly copying his design to equip Shackleton with an arm. The deal is I'll make blueprints to do so, and they'll get posted as an open source manipulator design when done. >> >> Best, >> Alec >> >> On Thu, Dec 12, 2019 at 4:28 PM hank pronk via Personal_Submersibles wrote: >> Thanks David, it should work now >> Hank >> >> On Thursday, December 12, 2019, 1:49:25 PM MST, David Colombo via Personal_Submersibles wrote: >> >> >> Hi Hank, the link is listed as private. >> Best Regards, >> David Colombo >> >> 804 College Ave >> Santa Rosa, CA. 95404 >> (707) 536-1424 >> www.SeaQuestor.com >> >> >> >> On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles wrote: >> Here is a short video of my new all aluminum are for E3000 >> Hank >> >> ----- Forwarded Message ----- >> From: marta duffek >> To: "hanker_20032000 at yahoo.ca" >> Sent: Thursday, December 12, 2019, 12:46:28 PM MST >> Subject: >> >> https://youtu.be/Lm2smSqGs94 >> https://youtu.be/Lm2smSqGs94 >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu Dec 12 20:32:44 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Thu, 12 Dec 2019 20:32:44 -0500 Subject: [PSUBS-MAILIST] (no subject) In-Reply-To: References: <198486902.12751997.1576180056241@mail.yahoo.com> <1942284957.12779901.1576186060930@mail.yahoo.com> Message-ID: Thanks Dave. I'll try 2D first, and once refined perhaps can get you to do a 3D version. On Thu, Dec 12, 2019 at 5:55 PM David Colombo via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Alec, If you need my Acad services, I would be happy to help. Im > interested in building a version as well. > > Best Regards, > David Colombo > > 804 College Ave > Santa Rosa, CA. 95404 > (707) 536-1424 > www.SeaQuestor.com > > > > On Thu, Dec 12, 2019 at 2:26 PM Alec Smyth via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > >> Go Hank!!! BTW for the rest of you, Hand and I have a little initiative >> underway. I'm planning of brazenly copying his design to equip Shackleton >> with an arm. The deal is I'll make blueprints to do so, and they'll get >> posted as an open source manipulator design when done. >> >> Best, >> Alec >> >> On Thu, Dec 12, 2019 at 4:28 PM hank pronk via Personal_Submersibles < >> personal_submersibles at psubs.org> wrote: >> >>> Thanks David, it should work now >>> Hank >>> >>> On Thursday, December 12, 2019, 1:49:25 PM MST, David Colombo via >>> Personal_Submersibles wrote: >>> >>> >>> Hi Hank, the link is listed as private. >>> Best Regards, >>> David Colombo >>> >>> 804 College Ave >>> Santa Rosa, CA. 95404 >>> (707) 536-1424 >>> www.SeaQuestor.com >>> >>> >>> >>> On Thu, Dec 12, 2019 at 11:48 AM hank pronk via Personal_Submersibles < >>> personal_submersibles at psubs.org> wrote: >>> >>> Here is a short video of my new all aluminum are for E3000 >>> Hank >>> >>> ----- Forwarded Message ----- >>> *From:* marta duffek >>> *To:* "hanker_20032000 at yahoo.ca" >>> *Sent:* Thursday, December 12, 2019, 12:46:28 PM MST >>> *Subject:* >>> >>> https://youtu.be/Lm2smSqGs94 >>> https://youtu.be/Lm2smSqGs94 >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >>> >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >>> _______________________________________________ >>> Personal_Submersibles mailing list >>> Personal_Submersibles at psubs.org >>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >>> >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Fri Dec 13 20:15:46 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Fri, 13 Dec 2019 17:15:46 -0800 Subject: [PSUBS-MAILIST] Test dome. Message-ID: Hi guys, Christmas came early today with the delivery of my blown test dome which is 30 inch OD, full hemi with flange. One for each pilot. Anyone jealous? Next step is to do a dry fit as is and a second option to be a 150 degree dome vs 180. The second option would have no flange, just a land. The resaon, is it may be a cost saving measure. Quote from Stanley Plastics in the UK $28,000 for two slush cast domes with a machine finish. As this is beyond my budget, i am looking at alternatives. I'll send photos once its on the temp hatch ring with me in it. I'm thinking though I'm liking the size of this dome! https://www.facebook.com/1145380217/posts/10221164830487440/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Image8049520032984296080.jpg Type: image/jpeg Size: 263563 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Image6697336459249578786.jpg Type: image/jpeg Size: 202488 bytes Desc: not available URL: From personal_submersibles at psubs.org Fri Dec 13 20:52:40 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Fri, 13 Dec 2019 20:52:40 -0500 Subject: [PSUBS-MAILIST] Test dome. In-Reply-To: References: Message-ID: Hi David, I recall Greg's K250 domes also had a flange because they were blown, but I also remember him saying it was absolutely essential to machine off the flange (and a little more) because the bend stresses the acrylic making it markedly weaker. He would remove the flange on a planer, and then anneal the dome. When you say test, d'you mean just for test fitting the parts? Best, Alec On Fri, Dec 13, 2019 at 8:18 PM David Colombo via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi guys, Christmas came early today with the delivery of my blown test > dome which is 30 inch OD, full hemi with flange. One for each pilot. Anyone > jealous? Next step is to do a dry fit as is and a second option to be a 150 > degree dome vs 180. The second option would have no flange, just a land. > The resaon, is it may be a cost saving measure. Quote from Stanley Plastics > in the UK $28,000 for two slush cast domes with a machine finish. As this > is beyond my budget, i am looking at alternatives. I'll send photos once > its on the temp hatch ring with me in it. I'm thinking though I'm liking > the size of this dome! > > https://www.facebook.com/1145380217/posts/10221164830487440/ > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Sat Dec 14 05:06:24 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Sat, 14 Dec 2019 10:06:24 +0000 (UTC) Subject: [PSUBS-MAILIST] Test dome. In-Reply-To: References: Message-ID: <679918812.2236848.1576317984058@mail.yahoo.com> David,That is cool! and you may be able to use them as protection domes for transporting and storage.Hank On Friday, December 13, 2019, 6:16:21 PM MST, David Colombo via Personal_Submersibles wrote: Hi guys, Christmas came early today with the delivery of my blown test dome which is 30 inch OD, full hemi with flange. One for each pilot. Anyone jealous? Next step is to do a dry fit as is and a second option to be a 150 degree dome vs 180. The second option would have no flange, just a land. The resaon, is it may be a cost saving measure. Quote from Stanley Plastics in the UK $28,000 for two slush cast domes with a machine finish. As this is beyond my budget, i am looking at alternatives. I'll send photos once its on the temp hatch ring with me in it. I'm thinking though I'm liking the size of this dome! https://www.facebook.com/1145380217/posts/10221164830487440/ _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 08:51:52 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 16 Dec 2019 13:51:52 +0000 (UTC) Subject: [PSUBS-MAILIST] coms References: <1552772646.8219275.1576504312425.ref@mail.yahoo.com> Message-ID: <1552772646.8219275.1576504312425@mail.yahoo.com> Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 09:33:47 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Tue, 17 Dec 2019 03:33:47 +1300 Subject: [PSUBS-MAILIST] coms In-Reply-To: <1552772646.8219275.1576504312425@mail.yahoo.com> References: <1552772646.8219275.1576504312425.ref@mail.yahoo.com> <1552772646.8219275.1576504312425@mail.yahoo.com> Message-ID: Hank, If you don't get a response here, I would join a ROV group & post on one. They would have that stuff down to a fine art. I have searched ROV group information before. How deep are you wanting to go? Alan > On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: > > Hi All, > I am in need of guidance. I want to install coms in E3000 with a tether cable. I can get 4mm ROV tether at a reasonable cost. I always tow a buoy anyways. I need help to figure out how to do this. > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 10:29:18 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 16 Dec 2019 15:29:18 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: References: <1552772646.8219275.1576504312425.ref@mail.yahoo.com> <1552772646.8219275.1576504312425@mail.yahoo.com> Message-ID: <568868812.14091694.1576510158094@mail.yahoo.com> Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 13:21:59 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Mon, 16 Dec 2019 18:21:59 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: <568868812.14091694.1576510158094@mail.yahoo.com> References: <1552772646.8219275.1576504312425.ref@mail.yahoo.com> <1552772646.8219275.1576504312425@mail.yahoo.com> <568868812.14091694.1576510158094@mail.yahoo.com> Message-ID: <622909353.9224472.1576520519470@mail.yahoo.com> More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 16:08:47 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 16 Dec 2019 21:08:47 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: <622909353.9224472.1576520519470@mail.yahoo.com> References: <1552772646.8219275.1576504312425.ref@mail.yahoo.com> <1552772646.8219275.1576504312425@mail.yahoo.com> <568868812.14091694.1576510158094@mail.yahoo.com> <622909353.9224472.1576520519470@mail.yahoo.com> Message-ID: <806018166.12015.1576530527516@mail.yahoo.com> Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 16:11:37 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 13:11:37 -0800 Subject: [PSUBS-MAILIST] coms Message-ID: <20191216131137.35B4E5@m0117567.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 16:28:10 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Mon, 16 Dec 2019 13:28:10 -0800 Subject: [PSUBS-MAILIST] coms In-Reply-To: <20191216131137.35B4E5@m0117567.ppops.net> References: <20191216131137.35B4E5@m0117567.ppops.net> Message-ID: Brian, would the 7mm coax be neutral buoyant? Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Mon, Dec 16, 2019 at 1:13 PM Brian Cox via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi Hank, You could use that small diameter coax ( 7mm) which has the > plastic internal insulator material, I don't think it would compress. > That is what I am using for my floating antenna. Then I go thru a Blue > Globe type compression fitting , or you could do an epoxy type thru hull. > I think if the coax got nicked in any way you would have a problem. Maybe > some heavy duty jacketed coax. > > Brian > > > > --- personal_submersibles at psubs.org wrote: > > From: hank pronk via Personal_Submersibles < > personal_submersibles at psubs.org> > To: Alan via Personal_Submersibles > Subject: Re: [PSUBS-MAILIST] coms > Date: Mon, 16 Dec 2019 15:29:18 +0000 (UTC) > > Alan, good plan, but I am sure someone here has ideas. I am only needing > to go 500 feet for my project this summer, so I will start with that and > then I can just add to the line as needed. > Hank > > On Monday, December 16, 2019, 7:34:13 AM MST, Alan via > Personal_Submersibles wrote: > > > Hank, > If you don't get a response here, I would join a ROV group & post on one. > They would have that stuff down to a fine art. > I have searched ROV group information before. > How deep are you wanting to go? > Alan > > > > On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > Hi All, > I am in need of guidance. I want to install coms in E3000 with a tether > cable. I can get 4mm ROV tether at a reasonable cost. I always tow a buoy > anyways. I need help to figure out how to do this. > Hank > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ Personal_Submersibles > mailing list Personal_Submersibles at psubs.org > > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 16:48:04 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: <806018166.12015.1576530527516@mail.yahoo.com> References: <1552772646.8219275.1576504312425.ref@mail.yahoo.com> <1552772646.8219275.1576504312425@mail.yahoo.com> <568868812.14091694.1576510158094@mail.yahoo.com> <622909353.9224472.1576520519470@mail.yahoo.com> <806018166.12015.1576530527516@mail.yahoo.com> Message-ID: <96620156.9379529.1576532884459@mail.yahoo.com> I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 17:58:11 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 14:58:11 -0800 Subject: [PSUBS-MAILIST] coms Message-ID: <20191216145811.358CFA@m0117567.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 18:05:42 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 15:05:42 -0800 Subject: [PSUBS-MAILIST] Holiday diet Message-ID: <20191216150542.358C59@m0117567.ppops.net> An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_1498.JPG Type: image/jpeg Size: 116450 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_1504.JPG Type: image/jpeg Size: 123745 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_1501.JPG Type: image/jpeg Size: 126668 bytes Desc: not available URL: From personal_submersibles at psubs.org Mon Dec 16 18:10:14 2019 From: personal_submersibles at psubs.org (k6fee via Personal_Submersibles) Date: Mon, 16 Dec 2019 15:10:14 -0800 Subject: [PSUBS-MAILIST] coms In-Reply-To: <96620156.9379529.1576532884459@mail.yahoo.com> Message-ID: <201912170411.xBH4Bdng053277@whoweb.com> 500 feet of coax would also have horrendous feed losses @ Vhf frequency. Best would be to put the radio inside the bouy with a fiber optic cable link from the sub. That would eliminate feedline and other losses. Keith T.K6FEE? -------- Original message --------From: Jon Wallace via Personal_Submersibles Date: 12/16/19 1:48 PM (GMT-08:00) To: Jon Wallace via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 18:15:53 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 15:15:53 -0800 Subject: [PSUBS-MAILIST] holiday diet 2 Message-ID: <20191216151553.358D95@m0117567.ppops.net> An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_1502.JPG Type: image/jpeg Size: 113014 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: IMG_1500.JPG Type: image/jpeg Size: 111552 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: mermaid.gif Type: image/gif Size: 101591 bytes Desc: not available URL: From personal_submersibles at psubs.org Mon Dec 16 18:18:03 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 15:18:03 -0800 Subject: [PSUBS-MAILIST] coms Message-ID: <20191216151803.358DAC@m0117567.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 18:19:07 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Mon, 16 Dec 2019 23:19:07 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: <20191216145811.358CFA@m0117567.ppops.net> References: <20191216145811.358CFA@m0117567.ppops.net> Message-ID: <1450246974.41903.1576538347559@mail.yahoo.com> Brian,I find Coax to be a bit rigid for this application, I would want the tether to be real soft so to speak. ?I tow a poly rope with no issues, in fact the thicker the better. ?This is because thicker rope is more buoyant. ?I would add a couple small floats to the umbilical.Hank On Monday, December 16, 2019, 3:58:29 PM MST, Brian Cox via Personal_Submersibles wrote: David, Jon,? ? Not sure if it is neutral or not , my guess is that it would be positive.? But there would be a buoy on top in any event.? I don't think the coiling would be an issue as that would tend to cancel out any RF interference ( not that there would be any)? .? You could expect about 2.5 db per 100' i think, so you would want to have enough power to overcome the loss.? You might be able to put a high gain antenna on the floating antenna and or a signal amplifier at the antenna.? Brian ? --- personal_submersibles at psubs.org wrote: From: Jon Wallace via Personal_Submersibles To: Jon Wallace via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 18:39:22 2019 From: personal_submersibles at psubs.org (T Novak via Personal_Submersibles) Date: Mon, 16 Dec 2019 15:39:22 -0800 Subject: [PSUBS-MAILIST] holiday diet 2 In-Reply-To: <20191216151553.358D95@m0117567.ppops.net> References: <20191216151553.358D95@m0117567.ppops.net> Message-ID: <002801d5b46a$0c0efea0$242cfbe0$@telus.net> Merry Christmas, Brian. A lovely sea creature, to be sure. When it comes to Christmas weight gain I like the philosophy that it doesn't matter what you eat between Christmas and New Year's, what matters is what you eat between New Year's and Christmas. Best wishes, everyone. Dive safe. Tim From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Brian Cox via Personal_Submersibles Sent: Monday, December 16, 2019 3:16 PM To: PSubs Subject: [PSUBS-MAILIST] holiday diet 2 more pics Oh and MERRY CHRISTMAS ! -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 18:42:29 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 15:42:29 -0800 Subject: [PSUBS-MAILIST] coms Message-ID: <20191216154229.32D9CC@m0117459.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 19:15:04 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 17 Dec 2019 00:15:04 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: <20191216154229.32D9CC@m0117459.ppops.net> References: <20191216154229.32D9CC@m0117459.ppops.net> Message-ID: <1688956659.69131.1576541704765@mail.yahoo.com> A telephone can have an 18,000 foot wire,?Hank On Monday, December 16, 2019, 4:42:43 PM MST, Brian Cox via Personal_Submersibles wrote: Hank,? You would have to use coax, it would just be a matter of what kind.? Or do it like Keith says !?? Brian --- personal_submersibles at psubs.org wrote: From: hank pronk via Personal_Submersibles To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 23:19:07 +0000 (UTC) Brian,I find Coax to be a bit rigid for this application, I would want the tether to be real soft so to speak. ?I tow a poly rope with no issues, in fact the thicker the better. ?This is because thicker rope is more buoyant. ?I would add a couple small floats to the umbilical.Hank On Monday, December 16, 2019, 3:58:29 PM MST, Brian Cox via Personal_Submersibles wrote: David, Jon,? ? Not sure if it is neutral or not , my guess is that it would be positive.? But there would be a buoy on top in any event.? I don't think the coiling would be an issue as that would tend to cancel out any RF interference ( not that there would be any)? .? You could expect about 2.5 db per 100' i think, so you would want to have enough power to overcome the loss.? You might be able to put a high gain antenna on the floating antenna and or a signal amplifier at the antenna.? Brian ? --- personal_submersibles at psubs.org wrote: From: Jon Wallace via Personal_Submersibles To: Jon Wallace via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 19:23:13 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Mon, 16 Dec 2019 16:23:13 -0800 Subject: [PSUBS-MAILIST] Holiday diet In-Reply-To: <20191216150542.358C59@m0117567.ppops.net> References: <20191216150542.358C59@m0117567.ppops.net> Message-ID: Brian, in picture three, are you planning to cover those openings? Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Mon, Dec 16, 2019 at 3:06 PM Brian Cox via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi All , > My sub will not be able to indulge during the holidays > since it is going on another extreme diet. Here are some pics . All the > nay sayers out there a are welcome to assail my project ( heck I do it > myself ! ) I'm just going to keep cutting off weight until I get a > balanced sub. > > Brian > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 19:28:14 2019 From: personal_submersibles at psubs.org (David Colombo via Personal_Submersibles) Date: Mon, 16 Dec 2019 16:28:14 -0800 Subject: [PSUBS-MAILIST] coms In-Reply-To: <1688956659.69131.1576541704765@mail.yahoo.com> References: <20191216154229.32D9CC@m0117459.ppops.net> <1688956659.69131.1576541704765@mail.yahoo.com> Message-ID: Hank, I seem to recall us pulling the buoy under for about an hour in Blue Bay. Which was the most fun I've had in years. Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Mon, Dec 16, 2019 at 4:16 PM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > A telephone can have an 18,000 foot wire, > Hank > > > On Monday, December 16, 2019, 4:42:43 PM MST, Brian Cox via > Personal_Submersibles wrote: > > > Hank, You would have to use coax, it would just be a matter of what > kind. Or do it like Keith says ! > > Brian > > > > --- personal_submersibles at psubs.org wrote: > > From: hank pronk via Personal_Submersibles < > personal_submersibles at psubs.org> > To: Brian Cox via Personal_Submersibles > Subject: Re: [PSUBS-MAILIST] coms > Date: Mon, 16 Dec 2019 23:19:07 +0000 (UTC) > > Brian, > I find Coax to be a bit rigid for this application, I would want the > tether to be real soft so to speak. I tow a poly rope with no issues, in > fact the thicker the better. This is because thicker rope is more > buoyant. I would add a couple small floats to the umbilical. > Hank > > On Monday, December 16, 2019, 3:58:29 PM MST, Brian Cox via > Personal_Submersibles wrote: > > > David, Jon, Not sure if it is neutral or not , my guess is that it > would be positive. But there would be a buoy on top in any event. I don't > think the coiling would be an issue as that would tend to cancel out any RF > interference ( not that there would be any) . You could expect about 2.5 > db per 100' i think, so you would want to have enough power to overcome the > loss. You might be able to put a high gain antenna on the floating antenna > and or a signal amplifier at the antenna. > > Brian > > > > --- personal_submersibles at psubs.org wrote: > > From: Jon Wallace via Personal_Submersibles < > personal_submersibles at psubs.org> > To: Jon Wallace via Personal_Submersibles > > Subject: Re: [PSUBS-MAILIST] coms > Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) > > I think the first thing we need to determine is whether 500 feet of cable > is too long for VHF transmission. Also, what effect coiling of the cable > would have since in some situations coils of cable are used as baluns. > > Jon > > > On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via > Personal_Submersibles wrote: > > > Jon, > I was thinking about VHF radio with a 500 plus foot antenna cable to the > antenna on the surface. Then a matching radio on the boat. > Don't think smoke will be reliable under water haha > Hank > > On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via > Personal_Submersibles wrote: > > > More info Hank. What kind of comms? Are you wanting to tether ultrasonic > comms, some kind of radio like CB, smoke signals? > > Jon > > On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via > Personal_Submersibles wrote: > > > Alan, good plan, but I am sure someone here has ideas. I am only needing > to go 500 feet for my project this summer, so I will start with that and > then I can just add to the line as needed. > Hank > > On Monday, December 16, 2019, 7:34:13 AM MST, Alan via > Personal_Submersibles wrote: > > > Hank, > If you don't get a response here, I would join a ROV group & post on one. > They would have that stuff down to a fine art. > I have searched ROV group information before. > How deep are you wanting to go? > Alan > > > > On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > Hi All, > I am in need of guidance. I want to install coms in E3000 with a tether > cable. I can get 4mm ROV tether at a reasonable cost. I always tow a buoy > anyways. I need help to figure out how to do this. > Hank > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ Personal_Submersibles > mailing list Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ Personal_Submersibles > mailing list Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 19:34:20 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 17 Dec 2019 00:34:20 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: References: <20191216154229.32D9CC@m0117459.ppops.net> <1688956659.69131.1576541704765@mail.yahoo.com> Message-ID: <1126669162.119562.1576542860739@mail.yahoo.com> David,Yes that was my bad,?Hank On Monday, December 16, 2019, 5:28:43 PM MST, David Colombo via Personal_Submersibles wrote: Hank, I seem to recall us pulling the buoy under for about an hour in Blue Bay. Which was the most fun I've had in years. Best Regards, David Colombo 804 College Ave Santa Rosa, CA. 95404 (707) 536-1424 www.SeaQuestor.com On Mon, Dec 16, 2019 at 4:16 PM hank pronk via Personal_Submersibles wrote: A telephone can have an 18,000 foot wire,?Hank On Monday, December 16, 2019, 4:42:43 PM MST, Brian Cox via Personal_Submersibles wrote: Hank,? You would have to use coax, it would just be a matter of what kind.? Or do it like Keith says !?? Brian --- personal_submersibles at psubs.org wrote: From: hank pronk via Personal_Submersibles To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 23:19:07 +0000 (UTC) Brian,I find Coax to be a bit rigid for this application, I would want the tether to be real soft so to speak.? I tow a poly rope with no issues, in fact the thicker the better.? This is because thicker rope is more buoyant.? I would add a couple small floats to the umbilical.Hank On Monday, December 16, 2019, 3:58:29 PM MST, Brian Cox via Personal_Submersibles wrote: David, Jon,? ? Not sure if it is neutral or not , my guess is that it would be positive.? But there would be a buoy on top in any event.? I don't think the coiling would be an issue as that would tend to cancel out any RF interference ( not that there would be any)? .? You could expect about 2.5 db per 100' i think, so you would want to have enough power to overcome the loss.? You might be able to put a high gain antenna on the floating antenna and or a signal amplifier at the antenna.? Brian ? --- personal_submersibles at psubs.org wrote: From: Jon Wallace via Personal_Submersibles To: Jon Wallace via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface.? Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas.? I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance.? I want to install coms in E3000 with a tether cable.? I can get 4mm ROV tether at a reasonable cost.? I always tow a buoy anyways.? I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 20:15:57 2019 From: personal_submersibles at psubs.org (k6fee via Personal_Submersibles) Date: Mon, 16 Dec 2019 17:15:57 -0800 Subject: [PSUBS-MAILIST] coms In-Reply-To: <1688956659.69131.1576541704765@mail.yahoo.com> Message-ID: <201912170617.xBH6H3m7054182@whoweb.com> Telephone is using low frequency energy, not 150 mhz rf. Big difference in energy loss @ rf, and the higher the frequency the greater the loss. Low loss coax is rigid, non flexible and expensive. IMO best to put radio inside buoy fiber optic line to sub, no losses, just pulses of light. If your coax lost 3 db per 100', 500' means 15 db loss. Every 3 db loss drops your power by 1/2!! So a 25 watt radio with 500' of coax = 12.5 watts ( first 100', 3 db), 6.25 watts ( next 100'), 3.12 watts, then 1.56 watts, then .78 watts at the surface.? Also any received signal is attenuated by 15 db. Just my 2 cents. Keith T.K6FEE? -------- Original message --------From: hank pronk via Personal_Submersibles Date: 12/16/19 4:15 PM (GMT-08:00) To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms A telephone can have an 18,000 foot wire,?Hank On Monday, December 16, 2019, 4:42:43 PM MST, Brian Cox via Personal_Submersibles wrote: Hank,? You would have to use coax, it would just be a matter of what kind.? Or do it like Keith says !?? Brian --- personal_submersibles at psubs.org wrote: From: hank pronk via Personal_Submersibles To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 23:19:07 +0000 (UTC) Brian,I find Coax to be a bit rigid for this application, I would want the tether to be real soft so to speak. ?I tow a poly rope with no issues, in fact the thicker the better. ?This is because thicker rope is more buoyant. ?I would add a couple small floats to the umbilical.Hank On Monday, December 16, 2019, 3:58:29 PM MST, Brian Cox via Personal_Submersibles wrote: David, Jon,? ? Not sure if it is neutral or not , my guess is that it would be positive.? But there would be a buoy on top in any event.? I don't think the coiling would be an issue as that would tend to cancel out any RF interference ( not that there would be any)? .? You could expect about 2.5 db per 100' i think, so you would want to have enough power to overcome the loss.? You might be able to put a high gain antenna on the floating antenna and or a signal amplifier at the antenna.? Brian ? --- personal_submersibles at psubs.org wrote: From: Jon Wallace via Personal_Submersibles To: Jon Wallace via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 20:21:44 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 17 Dec 2019 01:21:44 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: <201912170617.xBH6H3m7054182@whoweb.com> References: <1688956659.69131.1576541704765@mail.yahoo.com> <201912170617.xBH6H3m7054182@whoweb.com> Message-ID: <1264367915.135796.1576545704446@mail.yahoo.com> Kieth,Sounds expensive. ?How about a hard wired com to the surface and then convert to a radio frequency?Hank On Monday, December 16, 2019, 6:16:21 PM MST, k6fee via Personal_Submersibles wrote: Telephone is using low frequency energy, not 150 mhz rf. Big difference in energy loss @ rf, and the higher the frequency the greater the loss. Low loss coax is rigid, non flexible and expensive. IMO best to put radio inside buoy fiber optic line to sub, no losses, just pulses of light. If your coax lost 3 db per 100', 500' means 15 db loss. Every 3 db loss drops your power by 1/2!! So a 25 watt radio with 500' of coax = 12.5 watts ( first 100', 3 db), 6.25 watts ( next 100'), 3.12 watts, then 1.56 watts, then .78 watts at the surface.? Also any received signal is attenuated by 15 db. Just my 2 cents. Keith T.K6FEE? -------- Original message --------From: hank pronk via Personal_Submersibles Date: 12/16/19 4:15 PM (GMT-08:00) To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms A telephone can have an 18,000 foot wire,?Hank On Monday, December 16, 2019, 4:42:43 PM MST, Brian Cox via Personal_Submersibles wrote: Hank,? You would have to use coax, it would just be a matter of what kind.? Or do it like Keith says !?? Brian --- personal_submersibles at psubs.org wrote: From: hank pronk via Personal_Submersibles To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 23:19:07 +0000 (UTC) Brian,I find Coax to be a bit rigid for this application, I would want the tether to be real soft so to speak. ?I tow a poly rope with no issues, in fact the thicker the better. ?This is because thicker rope is more buoyant. ?I would add a couple small floats to the umbilical.Hank On Monday, December 16, 2019, 3:58:29 PM MST, Brian Cox via Personal_Submersibles wrote: David, Jon,? ? Not sure if it is neutral or not , my guess is that it would be positive.? But there would be a buoy on top in any event.? I don't think the coiling would be an issue as that would tend to cancel out any RF interference ( not that there would be any)? .? You could expect about 2.5 db per 100' i think, so you would want to have enough power to overcome the loss.? You might be able to put a high gain antenna on the floating antenna and or a signal amplifier at the antenna.? Brian ? --- personal_submersibles at psubs.org wrote: From: Jon Wallace via Personal_Submersibles To: Jon Wallace via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 20:30:41 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 17:30:41 -0800 Subject: [PSUBS-MAILIST] Holiday diet Message-ID: <20191216173041.328E5F@m0117164.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 20:33:46 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 17:33:46 -0800 Subject: [PSUBS-MAILIST] coms Message-ID: <20191216173346.328E27@m0117164.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 21:06:42 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Tue, 17 Dec 2019 02:06:42 +0000 (UTC) Subject: [PSUBS-MAILIST] holiday diet 2 In-Reply-To: <20191216151553.358D95@m0117567.ppops.net> References: <20191216151553.358D95@m0117567.ppops.net> Message-ID: <1406228969.57724.1576548402225@mail.yahoo.com> That last photo...weight and balance looks pretty good to me. On Monday, December 16, 2019, 06:18:04 PM EST, Brian Cox via Personal_Submersibles wrote: more pics? ?Oh and MERRY CHRISTMAS !? ?_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 21:12:54 2019 From: personal_submersibles at psubs.org (k6fee via Personal_Submersibles) Date: Mon, 16 Dec 2019 18:12:54 -0800 Subject: [PSUBS-MAILIST] coms In-Reply-To: <20191216173346.328E27@m0117164.ppops.net> Message-ID: <201912170714.xBH7E75J055033@whoweb.com> Some kind of interface would be needed to convert from optical to analog signals into the radio. I haven't thought along these lines before, so no investigation into what is needed. Could use a router with fiber input and bluetooth out to a bluetooth capable radio. Maybe a simpler way have to see what's available. Keith T.K6FEE? -------- Original message --------From: Brian Cox via Personal_Submersibles Date: 12/16/19 5:33 PM (GMT-08:00) To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] coms Keith,? ? Is the fiber optic line linked to a control unit that networks to the radio?? ? Would you need a computer controlled radio? Brian ? --- personal_submersibles at psubs.org wrote: From: k6fee via Personal_Submersibles To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 17:15:57 -0800 Telephone is using low frequency energy, not 150 mhz rf. Big difference in energy loss @ rf, and the higher the frequency the greater the loss. Low loss coax is rigid, non flexible and expensive. IMO best to put radio inside buoy fiber optic line to sub, no losses, just pulses of light. If your coax lost 3 db per 100', 500' means 15 db loss. Every 3 db loss drops your power by 1/2!! So a 25 watt radio with 500' of coax = 12.5 watts ( first 100', 3 db), 6.25 watts ( next 100'), 3.12 watts, then 1.56 watts, then .78 watts at the surface.? Also any received signal is attenuated by 15 db. Just my 2 cents. Keith T.K6FEE? -------- Original message --------From: hank pronk via Personal_Submersibles Date: 12/16/19 4:15 PM (GMT-08:00) To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms A telephone can have an 18,000 foot wire,?Hank On Monday, December 16, 2019, 4:42:43 PM MST, Brian Cox via Personal_Submersibles wrote: Hank,? You would have to use coax, it would just be a matter of what kind.? Or do it like Keith says !?? Brian --- personal_submersibles at psubs.org wrote: From: hank pronk via Personal_Submersibles To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 23:19:07 +0000 (UTC) Brian,I find Coax to be a bit rigid for this application, I would want the tether to be real soft so to speak. ?I tow a poly rope with no issues, in fact the thicker the better. ?This is because thicker rope is more buoyant. ?I would add a couple small floats to the umbilical.Hank On Monday, December 16, 2019, 3:58:29 PM MST, Brian Cox via Personal_Submersibles wrote: David, Jon,? ? Not sure if it is neutral or not , my guess is that it would be positive.? But there would be a buoy on top in any event.? I don't think the coiling would be an issue as that would tend to cancel out any RF interference ( not that there would be any)? .? You could expect about 2.5 db per 100' i think, so you would want to have enough power to overcome the loss.? You might be able to put a high gain antenna on the floating antenna and or a signal amplifier at the antenna.? Brian ? --- personal_submersibles at psubs.org wrote: From: Jon Wallace via Personal_Submersibles To: Jon Wallace via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 22:10:34 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Tue, 17 Dec 2019 03:10:34 +0000 (UTC) Subject: [PSUBS-MAILIST] coms In-Reply-To: <201912170714.xBH7E75J055033@whoweb.com> References: <20191216173346.328E27@m0117164.ppops.net> <201912170714.xBH7E75J055033@whoweb.com> Message-ID: <15182129.105746.1576552234791@mail.yahoo.com> Yes, an interface is required.? Looks like such devices are manufactured but I haven't found a price for them yet.? Unfortunately VHF cannot be easily modified.? Using conventional means, your radios are going to require 50 ohm cable, shielded, to have a proper standing wave.? You can find lots of information online about standing waves and how the RF energy flows around the coax cable by searching "how to build a vhf antenna" or "marine band antenna".? Receiving is one thing, but transmission is quite inflexible regarding electromagnetic laws of science.? The risk is is burning out the transmitter. Keith is correct about the signal loss over 500 feet.? I found a couple of resources (see links below) that shows a max length of 140 feet for VHF using RG8u or LMR-400.? It's a big cable at 10+mm in diameter and the max length equates to about a 3db loss, which makes sense since I believe a half-wave dipole provides a 3db gain.? So the cable loss cancels the gain of the antenna. http://www.rfcoaxconnectors.com/technical-coax-cable-length-choice.phphttp://www.rfcafe.com/references/electrical/coax-chart.htm I have a feeling the RF to Fiber converters are not cheap since I can only find "request a quote" pricing online although I haven't done an exhaustive search for a supplier. Maybe older technology is appropriate here.? A phone-like "intercom" between sub and surface, converted to radio at the surface? Jon On Monday, December 16, 2019, 09:15:11 PM EST, k6fee via Personal_Submersibles wrote: Some kind of interface would be needed to convert from optical to analog signals into the radio. I haven't thought along these lines before, so no investigation into what is needed. Could use a router with fiber input and bluetooth out to a bluetooth capable radio. Maybe a simpler way have to see what's available. Keith T.K6FEE? -------- Original message --------From: Brian Cox via Personal_Submersibles Date: 12/16/19 5:33 PM (GMT-08:00) To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] coms Keith,? ? Is the fiber optic line linked to a control unit that networks to the radio?? ? Would you need a computer controlled radio? Brian ? --- personal_submersibles at psubs.org wrote: From: k6fee via Personal_Submersibles To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 17:15:57 -0800 Telephone is using low frequency energy, not 150 mhz rf. Big difference in energy loss @ rf, and the higher the frequency the greater the loss. Low loss coax is rigid, non flexible and expensive. IMO best to put radio inside buoy fiber optic line to sub, no losses, just pulses of light. If your coax lost 3 db per 100', 500' means 15 db loss. Every 3 db loss drops your power by 1/2!! So a 25 watt radio with 500' of coax = 12.5 watts ( first 100', 3 db), 6.25 watts ( next 100'), 3.12 watts, then 1.56 watts, then .78 watts at the surface.? Also any received signal is attenuated by 15 db. Just my 2 cents. Keith T.K6FEE? -------- Original message --------From: hank pronk via Personal_Submersibles Date: 12/16/19 4:15 PM (GMT-08:00) To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms A telephone can have an 18,000 foot wire,?Hank On Monday, December 16, 2019, 4:42:43 PM MST, Brian Cox via Personal_Submersibles wrote: Hank,? You would have to use coax, it would just be a matter of what kind.? Or do it like Keith says !?? Brian --- personal_submersibles at psubs.org wrote: From: hank pronk via Personal_Submersibles To: Brian Cox via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 23:19:07 +0000 (UTC) Brian,I find Coax to be a bit rigid for this application, I would want the tether to be real soft so to speak. ?I tow a poly rope with no issues, in fact the thicker the better. ?This is because thicker rope is more buoyant. ?I would add a couple small floats to the umbilical.Hank On Monday, December 16, 2019, 3:58:29 PM MST, Brian Cox via Personal_Submersibles wrote: David, Jon,? ? Not sure if it is neutral or not , my guess is that it would be positive.? But there would be a buoy on top in any event.? I don't think the coiling would be an issue as that would tend to cancel out any RF interference ( not that there would be any)? .? You could expect about 2.5 db per 100' i think, so you would want to have enough power to overcome the loss.? You might be able to put a high gain antenna on the floating antenna and or a signal amplifier at the antenna.? Brian ? --- personal_submersibles at psubs.org wrote: From: Jon Wallace via Personal_Submersibles To: Jon Wallace via Personal_Submersibles Subject: Re: [PSUBS-MAILIST] coms Date: Mon, 16 Dec 2019 21:48:04 +0000 (UTC) I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission.? Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns. Jon On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles wrote: Jon,?I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. ?Then a matching radio on the boat.Don't think smoke will be reliable under water hahaHank On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles wrote: More info Hank.? What kind of comms?? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals??? Jon On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles wrote: Alan, good plan, but I am sure someone here has ideas. ?I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.Hank On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles wrote: Hank,If you don't get a response here, I would join a ROV group & post on one.They would have that stuff down to a fine art.I have searched ROV group information before.How deep are you wanting to go?Alan On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles wrote: Hi All,I am in need of guidance. ?I want to install coms in E3000 with a tether cable. ?I can get 4mm ROV tether at a reasonable cost. ?I always tow a buoy anyways. ?I need help to figure out how to do this.?Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Mon Dec 16 23:21:13 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Mon, 16 Dec 2019 20:21:13 -0800 Subject: [PSUBS-MAILIST] coms Message-ID: <20191216202113.332437@m0117458.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 17 01:24:28 2019 From: personal_submersibles at psubs.org (irox via Personal_Submersibles) Date: Mon, 16 Dec 2019 22:24:28 -0800 (GMT-08:00) Subject: [PSUBS-MAILIST] coms Message-ID: <275449104.8898.1576563869132@wamui-megara.atl.sa.earthlink.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 17 13:22:16 2019 From: personal_submersibles at psubs.org (Pete Niedermayr via Personal_Submersibles) Date: Tue, 17 Dec 2019 18:22:16 +0000 (UTC) Subject: [PSUBS-MAILIST] Flathead Lake In-Reply-To: <001201d59d87$8b62a020$a227e060$@telus.net> References: <757970465.1220918.1573945666289.ref@mail.yahoo.com> <757970465.1220918.1573945666289@mail.yahoo.com> <001401d59cd9$3c8a23a0$b59e6ae0$@telus.net> <000001d59cfb$36ff19f0$a4fd4dd0$@telus.net> <001201d59d87$8b62a020$a227e060$@telus.net> Message-ID: <283188307.439257.1576606936261@mail.yahoo.com> How can I see the videos ? On Sunday, November 17, 2019, 8:44:49 PM UTC, T Novak via Personal_Submersibles wrote: Thanks, David. ? This is great news.? You two have been very busy of late, so we all appreciate anytime time you can spare on this project.? We are glad to know that you are all well in your area. ? Looking forward to accessing the files. ? Best! ? Tim ? From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of David Colombo via Personal_Submersibles Sent: Saturday, November 16, 2019 8:27 PM To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] Flathead Lake ? Hi Tim i removed the link as i was uploading numerous files and it was noticing each upload. I have been sending all the files to the montana box site as they were unable to download the files from dropbox. All files will be complete next week. I will send a link to all team members once all files are uploaded. Sorry about the delays. Best?Regards, David Colombo ? On Sat, Nov 16, 2019, 7:59 PM T Novak via Personal_Submersibles wrote: Hi Alec, ? David Colombo provided the access link to the Drop Box folder with the Flathead Lake dive file folders.? Once e you have the access link you can then create a Drop Box username which allows you gain access to folders created by others who provide you with access.? You can also create your own Drop Box folders and allow others to access them. ? I think that that's how it works.? When I just go into the URL all I get is a 404 error. ? David, please advise. ? Tim ? From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alec Smyth via Personal_Submersibles Sent: Saturday, November 16, 2019 4:34 PM To: Personal Submersibles General Discussion Subject: Re: [PSUBS-MAILIST] Flathead Lake ? Tim, d'you have a link and password? ? Thanks, Alec ? On Sat, Nov 16, 2019 at 6:56 PM T Novak via Personal_Submersibles wrote: David uploaded a ton of photos onto the Dropbox.? I have not had a chance to look at it all. Tim ? From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of hank pronk via Personal_Submersibles Sent: Saturday, November 16, 2019 3:08 PM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] Flathead Lake ? Hi team Flathead Lake, did the FLBS folks get any video yet, how is that progressing? did I miss it? Hank _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 17 18:03:09 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 17 Dec 2019 23:03:09 +0000 (UTC) Subject: [PSUBS-MAILIST] battery box References: <673859346.581735.1576623789617.ref@mail.yahoo.com> Message-ID: <673859346.581735.1576623789617@mail.yahoo.com> Hi All, ?I always talk about the things that get done and the progress. ?The fact is with all the success comes failures. ?I broke my nice fibreglass battery box by being stupid. ?It took me a full 4 days to fabricate a new one from 1\8 steel plate and then transfer the electric bits and batteries. ?Then the task of installing the 350 lb box without separating the chassis from the sphere. ?Its not all smooth sailing! ?The good news is I will need a test pool very soon.Hank -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 17 19:30:36 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Tue, 17 Dec 2019 19:30:36 -0500 Subject: [PSUBS-MAILIST] battery box In-Reply-To: <673859346.581735.1576623789617@mail.yahoo.com> References: <673859346.581735.1576623789617.ref@mail.yahoo.com> <673859346.581735.1576623789617@mail.yahoo.com> Message-ID: So long as you don't drop the sub on yourself, its still a good day. I once crawled out from painting the underside of the sub only to have a chain part seconds later and the sub drop two feet onto the floor. It probably registered on a seismographs. Fortunately I lived to learn how exceptionally stupid I'd been. I now have the biggest baddest sub supports you can imagine, and a permanent allergy to going under the sub. :) Alec On Tue, Dec 17, 2019 at 6:04 PM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi All, I always talk about the things that get done and the progress. > The fact is with all the success comes failures. I broke my nice > fibreglass battery box by being stupid. It took me a full 4 days to > fabricate a new one from 1\8 steel plate and then transfer the electric > bits and batteries. Then the task of installing the 350 lb box without > separating the chassis from the sphere. Its not all smooth sailing! > The good news is I will need a test pool very soon. > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 17 20:19:12 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Wed, 18 Dec 2019 01:19:12 +0000 (UTC) Subject: [PSUBS-MAILIST] battery box In-Reply-To: References: <673859346.581735.1576623789617.ref@mail.yahoo.com> <673859346.581735.1576623789617@mail.yahoo.com> Message-ID: <1889110764.637324.1576631952308@mail.yahoo.com> Hi All,A while back I mentioned that I am mounting my vertical thrusters on permanent ?magnets. ?I welded flat seats to the hull for the magnets to sit on and I tried it out. ?I started with 3 magnets per motor and that was not enough. ?I add 2 magnets per motor to 5 each. ?So far it is great, and I can not pull the mounts off by hand unless I torque on them from the side. ?I will finish mounting them and then do a weight test. ?This means all my motors and arm etc jettison.Hank On Tuesday, December 17, 2019, 5:31:05 PM MST, Alec Smyth via Personal_Submersibles wrote: So long as you don't drop the sub on yourself, its still a good day. I once crawled out from painting the underside of the sub only to have a chain part seconds later and the sub drop two feet onto the floor. It probably registered on a seismographs. Fortunately I lived to learn how exceptionally stupid I'd been. I now have the biggest baddest sub supports you can imagine, and a permanent allergy to going under the sub. :)Alec On Tue, Dec 17, 2019 at 6:04 PM hank pronk via Personal_Submersibles wrote: Hi All, ?I always talk about the things that get done and the progress.? The fact is with all the success comes failures.? I broke my nice fibreglass battery box by being stupid.? It took me a full 4 days to fabricate a new one from 1\8 steel plate and then transfer the electric bits and batteries.? Then the task of installing the 350 lb box without separating the chassis from the sphere.? Its not all smooth sailing! ?The good news is I will need a test pool very soon.Hank_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 17 20:50:26 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 18 Dec 2019 14:50:26 +1300 Subject: [PSUBS-MAILIST] battery box In-Reply-To: <1889110764.637324.1576631952308@mail.yahoo.com> References: <673859346.581735.1576623789617.ref@mail.yahoo.com> <673859346.581735.1576623789617@mail.yahoo.com> <1889110764.637324.1576631952308@mail.yahoo.com> Message-ID: <94244867-1A7C-4689-896F-3832B83F379B@yahoo.com> Hank, so if your horizontal thruster gets fouled with a rope the thruster will just pull off when you travel vertically? Sounds like Alec was nearly the filling in a subway sandwich! Alan > On 18/12/2019, at 2:19 PM, hank pronk via Personal_Submersibles wrote: > > Hi All, > A while back I mentioned that I am mounting my vertical thrusters on permanent magnets. I welded flat seats to the hull for the magnets to sit on and I tried it out. I started with 3 magnets per motor and that was not enough. I add 2 magnets per motor to 5 each. So far it is great, and I can not pull the mounts off by hand unless I torque on them from the side. I will finish mounting them and then do a weight test. This means all my motors and arm etc jettison. > Hank > > On Tuesday, December 17, 2019, 5:31:05 PM MST, Alec Smyth via Personal_Submersibles wrote: > > > So long as you don't drop the sub on yourself, its still a good day. I once crawled out from painting the underside of the sub only to have a chain part seconds later and the sub drop two feet onto the floor. It probably registered on a seismographs. Fortunately I lived to learn how exceptionally stupid I'd been. I now have the biggest baddest sub supports you can imagine, and a permanent allergy to going under the sub. > > :) > Alec > > On Tue, Dec 17, 2019 at 6:04 PM hank pronk via Personal_Submersibles wrote: > Hi All, I always talk about the things that get done and the progress. The fact is with all the success comes failures. I broke my nice fibreglass battery box by being stupid. It took me a full 4 days to fabricate a new one from 1\8 steel plate and then transfer the electric bits and batteries. Then the task of installing the 350 lb box without separating the chassis from the sphere. Its not all smooth sailing! > The good news is I will need a test pool very soon. > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 17 21:17:24 2019 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Tue, 17 Dec 2019 21:17:24 -0500 Subject: [PSUBS-MAILIST] battery box In-Reply-To: <1889110764.637324.1576631952308@mail.yahoo.com> References: <673859346.581735.1576623789617.ref@mail.yahoo.com> <673859346.581735.1576623789617@mail.yahoo.com> <1889110764.637324.1576631952308@mail.yahoo.com> Message-ID: If I understand correctly the magnets are strong enough to hold against things like road bumps and of course the thrust produced by the motors when in use, but weak enough that blowing MBTs would pull them off. But what about the cables? In the Deep Workers those all go through a hydraulic guillotine. Thanks, Alec On Tue, Dec 17, 2019 at 8:20 PM hank pronk via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hi All, > A while back I mentioned that I am mounting my vertical thrusters on > permanent magnets. I welded flat seats to the hull for the magnets to sit > on and I tried it out. I started with 3 magnets per motor and that was not > enough. I add 2 magnets per motor to 5 each. So far it is great, and I > can not pull the mounts off by hand unless I torque on them from the side. > I will finish mounting them and then do a weight test. This means all my > motors and arm etc jettison. > Hank > > On Tuesday, December 17, 2019, 5:31:05 PM MST, Alec Smyth via > Personal_Submersibles wrote: > > > So long as you don't drop the sub on yourself, its still a good day. I > once crawled out from painting the underside of the sub only to have a > chain part seconds later and the sub drop two feet onto the floor. It > probably registered on a seismographs. Fortunately I lived to learn how > exceptionally stupid I'd been. I now have the biggest baddest sub supports > you can imagine, and a permanent allergy to going under the sub. > > :) > Alec > > On Tue, Dec 17, 2019 at 6:04 PM hank pronk via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > Hi All, I always talk about the things that get done and the progress. > The fact is with all the success comes failures. I broke my nice > fibreglass battery box by being stupid. It took me a full 4 days to > fabricate a new one from 1\8 steel plate and then transfer the electric > bits and batteries. Then the task of installing the 350 lb box without > separating the chassis from the sphere. Its not all smooth sailing! > The good news is I will need a test pool very soon. > Hank > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 17 21:54:58 2019 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 17 Dec 2019 19:54:58 -0700 Subject: [PSUBS-MAILIST] battery box In-Reply-To: References: <673859346.581735.1576623789617.ref@mail.yahoo.com> <673859346.581735.1576623789617@mail.yahoo.com> <1889110764.637324.1576631952308@mail.yahoo.com> Message-ID: <0B027C60-B4FD-48B6-9E3E-406199CC9594@yahoo.ca> Alec The wires just unplug and there is nothing else holding it Hank Sent from my iPhone > On Dec 17, 2019, at 7:17 PM, Alec Smyth via Personal_Submersibles wrote: > > If I understand correctly the magnets are strong enough to hold against things like road bumps and of course the thrust produced by the motors when in use, but weak enough that blowing MBTs would pull them off. But what about the cables? In the Deep Workers those all go through a hydraulic guillotine. > > Thanks, > Alec > >> On Tue, Dec 17, 2019 at 8:20 PM hank pronk via Personal_Submersibles wrote: >> Hi All, >> A while back I mentioned that I am mounting my vertical thrusters on permanent magnets. I welded flat seats to the hull for the magnets to sit on and I tried it out. I started with 3 magnets per motor and that was not enough. I add 2 magnets per motor to 5 each. So far it is great, and I can not pull the mounts off by hand unless I torque on them from the side. I will finish mounting them and then do a weight test. This means all my motors and arm etc jettison. >> Hank >> >> On Tuesday, December 17, 2019, 5:31:05 PM MST, Alec Smyth via Personal_Submersibles wrote: >> >> >> So long as you don't drop the sub on yourself, its still a good day. I once crawled out from painting the underside of the sub only to have a chain part seconds later and the sub drop two feet onto the floor. It probably registered on a seismographs. Fortunately I lived to learn how exceptionally stupid I'd been. I now have the biggest baddest sub supports you can imagine, and a permanent allergy to going under the sub. >> >> :) >> Alec >> >> On Tue, Dec 17, 2019 at 6:04 PM hank pronk via Personal_Submersibles wrote: >> Hi All, I always talk about the things that get done and the progress. The fact is with all the success comes failures. I broke my nice fibreglass battery box by being stupid. It took me a full 4 days to fabricate a new one from 1\8 steel plate and then transfer the electric bits and batteries. Then the task of installing the 350 lb box without separating the chassis from the sphere. Its not all smooth sailing! >> The good news is I will need a test pool very soon. >> Hank >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 24 12:29:19 2019 From: personal_submersibles at psubs.org (Alan via Personal_Submersibles) Date: Wed, 25 Dec 2019 06:29:19 +1300 Subject: [PSUBS-MAILIST] Merry Christmas References: Message-ID: Merry Christmas Psubbers. It's started already in N.Z.. Hope you all have a great new year with lots of progress on your subs. Alan From personal_submersibles at psubs.org Tue Dec 24 13:06:06 2019 From: personal_submersibles at psubs.org (T Novak via Personal_Submersibles) Date: Tue, 24 Dec 2019 10:06:06 -0800 Subject: [PSUBS-MAILIST] Merry Christmas In-Reply-To: References: Message-ID: <001401d5ba84$d0af81b0$720e8510$@telus.net> And to you as well, Alan. Tim -----Original Message----- From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan via Personal_Submersibles Sent: Tuesday, December 24, 2019 9:29 AM To: personal_submersibles at psubs.org Subject: [PSUBS-MAILIST] Merry Christmas Merry Christmas Psubbers. It's started already in N.Z.. Hope you all have a great new year with lots of progress on your subs. Alan _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles From personal_submersibles at psubs.org Tue Dec 24 13:45:03 2019 From: personal_submersibles at psubs.org (Rick Patton via Personal_Submersibles) Date: Tue, 24 Dec 2019 08:45:03 -1000 Subject: [PSUBS-MAILIST] Merry Christmas In-Reply-To: <001401d5ba84$d0af81b0$720e8510$@telus.net> References: <001401d5ba84$d0af81b0$720e8510$@telus.net> Message-ID: Merry Christmas to all and hope that new years brings us good progress on our subs and safe diving for those who have finished theirs. Just got my second drop weight installed! Rick On Tue, Dec 24, 2019 at 8:07 AM T Novak via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > And to you as well, Alan. > Tim > > -----Original Message----- > From: Personal_Submersibles [mailto: > personal_submersibles-bounces at psubs.org] > On Behalf Of Alan via Personal_Submersibles > Sent: Tuesday, December 24, 2019 9:29 AM > To: personal_submersibles at psubs.org > Subject: [PSUBS-MAILIST] Merry Christmas > > Merry Christmas Psubbers. > It's started already in N.Z.. > Hope you all have a great new year with lots of progress on your subs. > Alan > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue Dec 24 22:19:13 2019 From: personal_submersibles at psubs.org (Brian Cox via Personal_Submersibles) Date: Tue, 24 Dec 2019 19:19:13 -0800 Subject: [PSUBS-MAILIST] Merry Christmas Message-ID: <20191224191913.37DADC@m0117568.ppops.net> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed Dec 25 08:42:03 2019 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Wed, 25 Dec 2019 13:42:03 +0000 (UTC) Subject: [PSUBS-MAILIST] Merry Christmas In-Reply-To: References: Message-ID: <26738132.4056974.1577281323892@mail.yahoo.com> I hope everyone has a fabulous day!Merry Christmas! On Tuesday, December 24, 2019, 12:31:47 PM EST, Alan via Personal_Submersibles wrote: Merry Christmas Psubbers. It's started already in N.Z.. Hope you all have a great new year with lots of progress on your subs. Alan _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: