Circular running torpedoes!

They look like fun, though if they can take half an hour to run out of oomph I think some of us will be back at base before we hear the bang!
I seem to remember seeing somewhere that the allies had developed air-launched accoustic homing torpedoes at some point during the war - for anti-submarine use I think. A nice loadout for a Beufighter or A-20?

Perhaps one for the next patch...
Anyway, glad to see things are progressing.