DON'T BE AFRAID TO USE THE MK 27 "CUTIE" TORPEDO

Originally Posted by SeaviewSkipper

A hand grenade? How so? A hand grenade can't follow its target around like the Q-Tip can.

it was about the explosive force being weak but under water the explosion is concentrated and confined to a small area so you don't need a lot explosive in the warhead to put a hole in a DD. now a BB might be different