I have to ask - What do you mean by preheat? I know u-boats had to keep their electric eels at a certain temperature to get the best performance from the battery, and I know this caused them problems - but I didn't think this was modelled in the game.
@larsonboram - If you're using mark 14s in the Pacific, then the two things you need to consider are the tendency of the fish to run deep [up to about 12'] and the tendency to prematurely detonate in heavy seas. Keel shots are preferable because they deliver maximum destructive power, but the rougher the sea, the less chance of them reaching the target.....
Anyways - I didn't think this up myself, I admit, I got it from someone on here, but I can't credit them because I've forgotten who - sorry. But in calm weather set your fish to arrive 6'
above the keel - means you won't always get the keel shot, but it also means that no matter how deep it runs it's still got the best chance of detonation. In rough weather set for 12' above the keel and impact detonation. In this scenario you should try to set the shot up such that the fish impacts at an acute angle. Solution Solver is a handy tool. If you've done your homework on the target and have an accurate course, speed and range, then you could consider using the Vector Analysis attack method.....
As usual, I'm prepared to be proved wrong on this...
