List of test depths for playable subs (1.01b)
 

So these are all listed in the streaming assets folder, but I figured I would throw them in a list to make it easier on people. These are as of patch 1.01b. Escape depth (depth at which you can safely abandon ship from the menu) is currently 600ft for all classes.

Please note that test depth is NOT the same as crush depth. Crush depth depends on how damaged your hull is. At 100% hull integrity crush depth seems to be about 1.5x-2x test depth (needs more testing). At high damage levels it might be LESS than test depth.

You will know you are below test depth when the depth indicator turns red. You will know you are below crush depth when your sub implodes (it's a big hint).

Anyway here we go:

Los Angeles - 950 ft
Narwhal - 1320 ft
Sturgeon - 1320 ft
Permit/Thresher - 1320 ft
Skipjack - 700 ft

Hope this helps.

I have changed the Test Depth for the Subs by myself.

LA have 2000 feet.. nearly 700m which is the real max depth
Alpha 3000 feet.. nmearly 900m
Oscar and Typoon 2500 feet.

Now how do the rest of us do that???:timeout:

Test depth had nothing to to with max depth.
Test depth is the depth they the manufacturer Deems 100 % safe to dive to. Max depth is crush depth the ultimate depth the sub can travel before it implodes.
And the crush depth of the LA-class is around 1450 feet and test depth is 950 feet ( according to most sources. I think 2000 feet is more in like for Seawolves class i think.

You should not edit these. The game automatically calculates crush depth on the fly using the standard formula of Test Depth * 1.5 safety margin with a fudge factor and reducing it as hull integrity decreases.

Another reason is that they come from reputable USNI source books, not some random online source.

So the older Narwhal, Sturgeon and Permit/Thresher classes have better test depth and hence better crush depth than the Los Angeles!
Is this accurate?

Weight had to be cut on the Los Angeles because of the much bigger reactor plant, which limited its test depth. This was well-known even at the time. Also to save weight they were not provided with the under-ice capability of the earlier boats. So this is as it historically should be.

The LA also has a wider beam than its predecessors, which (all else equal) contributes to reduced depth.

A wider beam has nothing to do with it...

637 and 688's have the same beam...

It has to do with what the original type of operations the boat was designed to do....

Besides, in the real world, you would almost always evade shallow.....

Says the retired FTCS (SS)

Do they have the same beam? I was under the impression the LA was slightly wider.

I was quoting some simple physics for pressure vessels, but a search has yielded that external pressure vessels are not as straight-forward to solve/design as internal pressure vessels. I shall rescind my previous comment since I am not a naval architect. But for an internal pressure vessel, the stress in the cylinder is proportional to the diameter of the cylinder.

welcome aboard firsttime poster!
 

Random information, my Permit class submarine went pop at 1350 feet. Maybe we could create a list of crush depths. And my hull was down to 50% thanks to RBUs.

Crush depth of the Skipjack: 1bout 1070 feet.