|Mark 33 torpedo|
|Place of origin||United States|
|In service||never in service|
|Designer||Bureau of Ordnance|
|Effective range||5000-19,000 yards|
|Warhead weight||500 pounds|
|Submarines and aircraft|
The Mark 33 torpedo was the first passive acoustic antisurface ship/antisubmarine homing torpedo intended for the United States Navy to employ a cast aluminum shell. It featured two speeds – high and low, and was meant to be launched from submarines and aircraft.
- Jolie, E.W. (15 September 1978). "A Brief History of US Navy Torpedo Development: Torpedo Mine Mk33". http://www.hnsa.org/doc/jolie/part2.htm. Retrieved 22 June 2013.
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