[KaleunMarco]

Originally Posted by propbeanie

Here's a little quote from SS-178 Permit's "history" (about 13 September, 1943):

"... This 'cruiser' was no doubt, the 9,524-ton aircraft transport Fujikawa Maru, heavily damaged in latitude 8°-23' N, longitude 165°-12' East. Permit made a last try firing two torpedoes and then diving deep as a plane came in. The submarine was passing the depth of 80 feet when through her hull came the sound of a Japanese torpedo passing directly over her conning tower. No depth charges were dropped ..."

Now, was that plane a torpedo bomber maybe? What makes them think it was a "Japanese" torpedo? Or was that one of their own torpedoes coming back at 'em?...

very good question.
knowing only a bit about torpedos launched from WWII aircraft the key setting is depth. on a WWII aircraft, the depth is set at the time the ordnance is loaded. so, while it is a possibility that the IJN aircraft fired a fish at the Permit, more than likely that fish had USN stamped on it.