Development.


The Mark 18 was the first electric storage battery torpedo manufactured for the US Navy and it was designed primarily for use as a submarine-launched torpedo.

The Mark 18 torpedo was an electric torpedo used by the United States Navy during World War II. The Mark 32 can fire 12.75-inch (324 mm) torpedoes of the Mark 44, Mark 46, Mark 50 (from the Mod 17 tubes onwards), and Mark 54 [citation needed] designs, and can be modified to use other torpedoes (such as the MU90 Impact aboard Royal Australian Navy …