[TorpX]

Originally Posted by Zosimus

"... Turner had argued that maintaining a steady course for 30 minutes was necessary to take a four-point bearing and precisely confirm the ship's position, but on this point he received less support, with other captains arguing a two-point bearing could have been taken in five minutes and would have been sufficiently accurate."

I don't mean to argue for using or not using whatever hydrophone method, but you are taking the above statement out of context.

The ship's captain is interested in navigating. He knows his previous positions, speed and his present course; he really only needs limited supplementary info for safe navigation. Intercepting an unknown target on the basis of sound bearings alone is a much harder task, as you would not know it's course, speed, range, or really, if it is zigging or not.