"Long Lance" redirects here. For the American Indian writer, see Chief Buffalo Child Long Lance.
Type 93 torpedo
Type 93 torpedo, recovered from Point Cruz, Guadalcanal, on display outside U.S. Navy headquarters in Washington, D.C., during World War II
Type
Torpedo
Place of origin
Empire of Japan
Service history
In service
1933–1945
Used by
Imperial Japanese Navy
Wars
Second World War
Production history
Designer
Rear Admiral Kaneji Kishimoto and Captain Toshihide Asakuma
Designed
1928–1932
Variants
Type 97 torpedo, Type 95 torpedo
Specifications
Mass
2.7 tonnes (6000 lb)
Length
9 metres (29 ft 6+5⁄16 in)
Diameter
610 mm (2 ft 1⁄64 in)
Effective firing range
22,000 m (24,000 yd) at 89–93 km/h (48–50 kn)
Maximum firing range
40,400 m (44,200 yd) at 63–67 km/h (34–36 kn)
Warhead weight
490 kg (1080 lb)
Propellant
Kerosene or similar oxidized with oxygen-enriched air
Maximum speed
96 km/h (52 kn)
Launch platform
Surface ships
The Type 93 (酸素魚雷, designated for Imperial Japanese calendar year 2593) was a 610 mm (24 in)-diameter torpedo of the Imperial Japanese Navy (IJN), launched from surface ships. It is commonly referred to as the Long Lance[1] by most modern English-language naval historians, a nickname given to it after the war by Samuel Eliot Morison,[2] the chief historian of the U.S. Navy, who spent much of the war in the Pacific Theater. In Japanese references, the term Sanso gyorai (酸素魚雷, lit. "oxygen torpedo") is also used, in reference to its propulsion system.[3] It was the most advanced naval torpedo in the world at the time.[4][5]
^Boyne 1995, pp. 127, 254.
^Morison 1950, p. 195.
^Sato, Kasumasa (1988). 太平洋海戦 1 進攻篇 (in Japanese). ISBN 4062037416.
^Morison 1984, pp. 23–25.
^Peck, Michael (March 20, 2016). "Japan's Super Torpedo was the Hypersonic Missile of World War II". National Interest. Retrieved March 20, 2016.
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