Mark 44 torpedo
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The Mark 44 torpedo is a now-obsolete air-launched and ship-launched lightweight torpedo manufactured in the United States, and under licence in Canada, France, Italy, Japan and the United Kingdom, with 10,500 being produced for U.S. service. It... Wikipedia
Effective firing range: 123 metres (135 yd)
Engine: Electric; 30 horsepower (22 kW)
Guidance system: Helix search
Length: 8.2 feet (2.5 m)
Mass: 432 pounds (196 kg)
Maximum depth: 1,000 yards (910 m)