<div dir="ltr">Thanks Hank looks like saddle tanks the way to go,towing might be an issue though.<div>Glen</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Jul 11, 2015 at 2:35 PM, hank pronk via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Glen,<br>
After converting to saddle tanks, I would never go back. The stability is remarkable, and in my case very robust. I used 100 lb propane tanks because I had them but also they are super tough and pretty light. As for towing, I can not comment, but I can say that my top speed seems about the same. More effort could have gone into mounting the tanks to be more streamlined, but I am very happy with the performance. You can see them real well on my launch video.<br>
Hank --------------------------------------------<br>
<span class="">On Sat, 7/11/15, glen brown via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br>
<br>
Subject: Re: [PSUBS-MAILIST] Dive fail.<br>
</span><span class=""> To: "Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
</span> Received: Saturday, July 11, 2015, 6:39 AM<br>
<br>
Hi<br>
JamesSaddle tanks sound good ,but i have wondered how<br>
<div><div class="h5"> much they will effect towing . Thinking as a option of an<br>
removeable fibreglass skin say 300mm from pressure hull<br>
forming some kind of<br>
deck.?regardsGlen<br>
On Wed, Jul 8, 2015 at<br>
12:54 PM, James Frankland via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
Hi Glen, If I were<br>
doing it again, I wouldn't bother with the standard MBTs<br>
at all. I would make saddle tanks like on the<br>
"Nemo" sub. For better surface stability and<br>
enclosed, so you don't burp air. Im going to<br>
change my boat over the winter to have tanks like that<br>
instead, or probably as well. Hank has done the same on<br>
his Gamma. Im not sure what you mean<br>
with the poly carb sheet attached to the top of the fore<br>
mbt? Is this for a deck of some sort? <br>
I paid a boatbuilding company to<br>
make the fibreglass tanks for my boat. They made the plug<br>
out of a load of blue builders foam sheets stuck together<br>
and shaped that. Then made the mould from that and layed<br>
the glass into it. The same as Dan H did I<br>
think. regardsJames <br>
On 8 July 2015 at 11:37,<br>
glen brown via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
</div></div> Hi JamesI am busy with my k350 mbts at the<br>
<div><div class="h5"> moment trying to copy Dan's plug, mould, product. I was<br>
thinking of using a section of poly carb sheet attached to<br>
the top of my fore mbt.Any<br>
comments?<br>
Thanks<br>
Glen<br>
On Mon, Jul 6,<br>
2015 at 11:04 AM, James Frankland via Personal_Submersibles<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
Hi All, <br>
I had a failure of a day on Sat. I put the boat in, and<br>
it had a<br>
leak. Not into the pressure hull, so it wasn’t a<br>
complete failure, but<br>
the leak was from the forward main tank. The nearly<br>
useless windows that I put on the forward tank were leaking<br>
air. Not just a little bit which I could have put up with<br>
it, but loads. The boat was diving quicker than venting<br>
normally. <br>
I pulled it out<br>
and went around tightening them up. Put it back in and it<br>
didn't make any difference. It was strange as<br>
they have been perfectly ok before. I think the problem is<br>
that on Friday while I was prepping the boat for diving, I<br>
went around and tightened the bolts. It must have broken<br>
the seals. Anyway. <br>
I could<br>
have possibly winged it by running with a reduced main<br>
ballast, but as<br>
I was heading into the open sea, I thought I best be<br>
sensible and call it off.<br>
<br>
<br>
<br>
So<br>
It was in for about 10 minutes. Pulled it out and was home<br>
by 8:30, very<br>
disappointed. Spent the<br>
afternoon sticking them in with Sikaflex and<br>
moaning. Hope these pics<br>
make it through. You can just see the air spilling from<br>
the widows in the second picture and the boat is going down<br>
nose first. Kind<br>
RegardsJames <br>
<br>
<br>
<br>
<br>
<br>
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