[PSUBS-MAILIST] VAST

[Alec Smyth via Personal_Submersibles]

I'd agree with that, but this particular one would be interesting to check
out. I saw photos of it and at least in those it looked quite pristine. Not
because it's got new paint or has been restored in any way, but because
it's a "barn find" that seems to have been put in a storage locker when it
was relatively new. From what I saw the VBT was formed by two flat plates
welded on the inside of the hull, giving you no access for inspection or
maintenance. That would have to go, at a minimum. I'm not even sure if
Kittredge had adopted O rings at that time or was still using packing!


Alec

On Wed, Mar 22, 2017 at 1:11 AM, Jon Wallace via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

>
> Inspect the old VAST submarines carefully.  They are old as the hills
> (almost) and may require more work to recondition than building a new
> K250.  In particular, they had an integral internal hard ballast that would
> make it difficult to assess hull viability without some destruction and
> rebuilding of that element alone. Keep in mind that Kittredge submarines
> evolved from ideas and refinements that were learned from operational
> lessons with previous models.
>
> You can read the basic history of Kittredge submarines here:
> http://www.psubs.org/reference/publications/kittredgesubmarines.pdf
>
> Jon
>
>
> On 3/21/2017 11:30 PM, River Dolfi via Personal_Submersibles wrote:
>
>> Also interested in more details about the Maryland VAST boat. These were
>> structurally the same as the later K250's? From what I can gather there are
>> minor differences in the varaible ballast system, is this right? Or is the
>> only difference that one was built in Kittredge's shop?
>>
>
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