[PSUBS-MAILIST] New submarine

[Vance Bradley]

Sean,
50% of displacement sounds pretty good. Idabel weighs 9000 pounds and has to have some foam. It would be cool to see something a ton lighter with more elbow room and even more depth capability with no syntactic. Not sure if it's possible, but with care, it might be close. All the external shell and tankage would have to be fiberglass or aluminum to keep the weight down, one supposes, but with modern batteries...who knows.
Vance

Sent from my iPhone

> On Apr 10, 2014, at 1:20 AM, "Sean T. Stevenson" <cast55 at telus.net> wrote:
> 
>> On 2014-04-09 23:06, vbra676539 at aol.com wrote:
>> Hank
>> 
>> The spheres at Perry were not spun, but fabricated much as the DW hulls are done using pressed segments. In the thicker material, it is very difficult to hold a nominal thickness without going really heavy and then machining the result.
>> 
>> Hank, is that figure for the .75" thickness or the 1.25"? Displacement is something like 7250# in seawater (6'OD). I would hope for a little better payload out of that than...what, less than 20%? Something like that.
>> 
>> Vance
> 
> Vance - according to ABS, I get a working depth of 1055.2 m for the 3/4" shell, and a payload of 17000 N, or over 3800 lbs.
> 
> Sean
> 
> 
> <cgebaceh.png>
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