hmm thanks for the lenghty reply, andy. it's a good read, but doesn't really answer my problem.
i don't need hydrophone bearings as i have visual with the targets. it's just that they're so far away, i cannot aim at the right spot. imagine this:
__A__/TTT\__/FA___
\TxTTTTTTTTTTTTT/
...359....................................000..... ...............................001................ ....
i suppose my best chance would be to just maneuver the whole boat until the target appears to be quite in the middle of a degree mark. no idea if the torpedos are that exact on such distances anyway. it would probably be wiser to take 2 fish per target to guarantee at least one hit.
oh and i play with 100% realism and impact, magnetic historically sucked.