[ArrogantBustard]

do all the things the ones in the movie did.

I don't recall what the homing torp in U571 did; I wouldn't be surprised if they wildly exaggerated its capabilities. The Mark 27 was a short-range self defense weapon for submarines. It homed on surface ship screw noise, and saw successful use in the Pacific theatre against Japanese ASW ships. I believe it "varied" its depth more or less monotonically from 400 ft up to zero, at which point it went "BANG!" and caused an IJN destroyer captain suddenly to lose interest in that pesky submarine...

AB

[WhiskeyPapa]

I don't recall what the homing torp in U571 did; I wouldn't be surprised if they wildly exaggerated its capabilities. The Mark 27 was a short-range self defense weapon for submarines. It homed on surface ship screw noise, and saw successful use in the Pacific theatre against Japanese ASW ships. I believe it "varied" its depth more or less monotonically from 400 ft up to zero, at which point it went "BANG!" and caused an IJN destroyer captain suddenly to lose interest in that pesky submarine...

I appreciate your note. That is all very interesting.

Walt