[PSUBS-MAILIST] VAST

[Jon Wallace via Personal_Submersibles]

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?