[PSUBS-MAILIST] Titan submersible missing at Titanic site

[Ian Juby via Personal_Submersibles]

I did some digging - 96 hours of air, but it's already been over 24 hours
since it dove. It had pings it sent to the launch vessel at regular
intervals which stopped and then no contact since then. It should be noted
that last year a CBS reporter dove on this very sub and they 'lost contact'
for some six hours then.
They also have seven different methods of emergency flotation, some of
which are quite ingenious. They have the usual: an inflatable flotation
bag, hydraulically released ballast, and they also have bags of ballast on
fusible links that the salt water severs after about 16 hours. They also
have roll-off ballast bars on the sides. They literally get everyone on one
side of the sub so that it leans, and the bars of ballast literally roll
off the shelves - they're only held on by gravity.. Roll them off both
sides you've gained a lot of buoyancy. They can also jetison the legs which
is a lot of weight and there's ballast bags that are electrically released.
However, if they float to the surface, they are still sealed inside, bolted
closed from the outside.
But still - this does not sound good. Contact was lost about 1 hour and 45
minutes into the dive, so it would have still been descending.

Ian


On Mon, Jun 19, 2023 at 5:16 PM Douglas Suhr via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> I'm sorry to hear this news. Hoping and praying the sub is found quickly
> with no loss of life! What do we know about the Oceangate Titan
> submersible? Hopefully at least 72-hrs of life support for its five
> occupants? ~ Doug S.
>
> On Mon, Jun 19, 2023 at 3:58 PM Jon Wallace via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> I agree.
>>
>> Jon
>>
>>
>> On Monday, June 19, 2023 at 03:18:23 PM EDT, via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>
>> https://www.bbc.com/news/world-us-canada-65953872
>>
>> Looks not good..
>>
>>
>>
>> Emile D.L. van Essen
>>
>>
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