Yeah, that hit got me jumping in my chair. The crash dive helped a bit, but then I got dc`ed pretty badly, and landed on the seafloor (70 meters) with a thump. That killed one of my propellors.
The following sequence almost "HunterIXC U-9"ed me, but I managed to survive, mainly because of some wild zig-zagging. Type VIIC!
U-52 still lives!
(And I got the bugger with an acoustic homing torp!
)