Torpedo has entered the water.
High speed screws.
Torpedo has acquired.
I wouldn’t want to be in the air in a helicopter anywhere NEAR a 1 KT going off. The Enola Gay dropped their weapon and ran like hell in a shallow dive to get away from it and still got roughed up by the shock wave. And that was in a B-29, from bombing altitude.
I guess this is the naval equivalent of a nuclear hand grenade.