you are welcome to it , this was all it take to sank lexinton
and it was a 37000 ton ship
no it can't , its maneuverable enough for stationary target but not enough for a moving target , it move a lot faster than the warhead of Persian Gulf (almost 5 time) so you have a lot less time to make course correction and that means a lot more stress on the already stressed out warhead. and no thermal at least ours cant lock at those speeds . if they could we already would have put them there
Actually they had to scuttled the ship. It didn't sink immediately after the attack. They abandoned ship thinking it would sink. It didn't. So they fired 5 more torpedoes at it.