[razark]

Originally Posted by Admiral8Q

I think that would add to the realism. You shouldn't go much bellow 450' even in a Balao class. If I recall corectly, I believe about 500' was the deepest recorded depth. I'm suprised you survived at 600', wow!

Balao class seems to be able to go quite deep.

http://en.wikipedia.org/wiki/USS_Chopper_%28SS-342%29

Despite the backing bell, blowing ballast, and other efforts to regain control of the submarine, the down angle continued to increase, and within one minute of the power failure, Chopper was nearly vertical in the water, bow down. Chopper's bow is estimated to have reached a depth of 1,011 ft (308 m), her stern reaching 720 ft (220 m).
...
Chopper returned to port under her own power. Inspection discovered that her hull had suffered extensive structural damage during the deep dive and rapid ascent. Chopper was decommissioned on 15 September 1969.

She may have been damaged, but she brought her crew home.

http://www.usschopper.com/Chopper%20...e%20Report.htm