Torpedo Catcher. Fast craft designed for attacking and destroying torpedo boats. First in Royal Navy was H.M.S. 'Rattlesnake* (1886).
Torpedo Gunboat. Gunboat fitted with torpedo tubes.
Torpedo Net. Netting made of interwoven steel wire rings and used as defence against torpedo. Extended almost full length of ship, on both sides, and to a depth of about 20 ft. Disadvantages outweighed advantages when torpedo was fitted with pioneer. Nets were discontinued after 1914-1918 war.