While I knew that the SEALs had a program to use surplus old 1,400-pound Mark 37 (NT37) homing ASW torpedoes in an anti-ship role to zap enemy warships in coastal/harbor raids via a hand-launch, I never knew the Navy had a dedicated Swimmer Launched Charge program. Apparently, this 1970s experimental small torpedo looked pretty elaborate. Photos via the U.S. Naval Undersea Museum.
