I cannot figure out how to sink the ships before the time expires, am I supposed to use bombs since the targeting sight comes up with the torpedo reticle!!!!?????......,should I attack the ships lenghtways or perpendicular,just when I make some progress I get the message "The Northamptons been hit!" and the game restarts with me way further from the ships than when I started, eating into valuable mission time! aaarrrgghh!

use torpedos