4 Bearing method, useless in combat?

[Kielhauler1961]

Originally Posted by BigWalleye

... And second, submerged firing based on hydrophone contact alone was so inaccurate as to be a waste of torpedoes. IIRC, there was never a successful hydrophone-only attack made by any submarine of any nation during the war....

Although the initial contact was confirmed by periscope, the rest of the attack was plotted by hydrophone bearings and predicted in 3 dimensions in the only recorded action of its kind...

HM Submarine Venturer sinks U-864 while both were submerged:

http://en.wikipedia.org/wiki/Action_of_9_February_1945

How many of us are so paranoid that we zig-zag submerged to avoid detection?

KH