[montag813]

If the sub had a pressure hull fail they’d never know what hit them.

"If there is an implosion at depth, the compression heating caused by the ocean rushing into the hull would be sufficient to heat the air inside to hundreds or even thousands of degrees. Under such circumstances, any flammable object inside (grease, clothing, people) would likely ignite or detonate ('Diesel effect')."

[GingisK]

I’d have thought that the air would be dissolved into the water pretty quickly. But, certainly a pile-driver blow to anything inside.

[null and void]

But as a fireman, you’d know that all that water would instantly quench any fire...

[piasa]

Wow, never thought about that.