[PSUBS-MAILIST] Cave Dive

[Alan via Personal_Submersibles]

David,
be a bit sad if it went beyond the depth of technical divers & it didn't
come home.
Alan

> On 5/04/2020, at 5:17 PM, David Colombo via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Alan, I met a company at the UI event in New Orleans, that had an autonomous  auv designed for mapping caves, and then would return home. It was interesting technology,  only cost 1.2 million dollars.
> David
> 
>> On Sat, Apr 4, 2020, 6:45 PM Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> Thanks Keith,
>> I believe we were both at Simon Mitchell's talk on diving the Niagra, years ago.
>> He was the doctor I referred to that was part of this team.
>> Shanee's suggested was to use ROVs but I think that would be impossible as although the depth was 250M, the length was over 600 meters with lots of entanglements.
>> Perhaps an AUV with range finding & a good program could get a bit further.
>> You could get the AUV in to the point the divers went to using their dive 
>> profile & some collision avoidance.
>> BTW it was a 76 year old caver Peter Crossley, that asked me about my sub
>> going in their. Peter originally mapped the Abbey rd caves along with myriads
>> of others.
>> Alan
>> 
>> 
>> 
>> 
>> 
>>> On 5/04/2020, at 12:00 PM, Keith Gordon via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>> 
>>> Hi Alan
>>> 
>>> The two divers Richard (Harry) Harris and Craig Challen, both Australians,  have been involved with us here in NZ diving the wrecks Niagara in 120m and the Ventnor in 150m - both wrecks that we have also being using ROV's on -  also. Cousteau did use the Denise sub on the Niagara when here. We had a Triton sub dive project set up for the past weeks to dive the Niagara but on hold due to the Covid-19 situation. Both divers were involved with the Thai cave rescue - Harry was the Doc who  sedated the boys and Craig assisted with diving them out - they have recently co-written a great book on the rescue well worth a read. You wouldn't get far with a Exo in the Pearce cave system.
>>> 
>>> Cheers
>>> Keith Gordon
>>> 
>>>> On 5/04/2020, at 10:46 AM, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>> 
>>>> Hi fellow submariners,
>>>> A caving friend asked me if I had a submarine that could dive the cave in the link
>>>> below. I explained that an Exosuit would be a better option.
>>>> The video is a cave dive to 250m depth by an international team in a NZ cave.
>>>> Total dive time was 16 hrs. 
>>>> I watched the video & thought the narration of it was excellent, so am passing it on. 
>>>> One of the support team is a doctor who is a World authority on 
>>>> diving sicknesses.
>>>> Alan
>>>> https://vimeo.com/403582253?fbclid=IwAR3Uv5J8WUDEDwkX0O8-0wGkna-y43oY-7jRwXfY1BWJhbvBCWTNgge5WbQ
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>>> 
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