off the top of my head for the skipjack
>100 ft for 10 knots (2/3rds)
>400ft for 20 knots (ahead standard)
>550 ft for 26 knots (ahead full)
>600~ for 33 knots (flank)
Crush depth is right around 1300 feet
Your depth will be reported in red for anything over 700 ft which was the test depth. Interesting fact about the Skipjack, while they were the first class of nuclear subs constructed of HY80 (I think they had used for certain hull sections of some of the Skate class, and USS Growler made of HY80 as well) her fittings and pumps were not rated to go any deeper than previous boats even though her hull was made of sterner stuff.
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