Type 91 torpedo
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The Type 91 was an aerial torpedo of the Imperial Japanese Navy. It was in service from 1931 to 1945. It was used in naval battles in World War II and was specially developed for attacks on ships in shallow harbours.
The Type 91 aerial torpedo had... Wikipedia
Length: 5.270 m (17.29 ft)
Designed: 1930–1945
Engine: Wet-heater type, 8-cylinder radial engine; 150 kW (200 hp)
Launch platform: Single-engine carrier-based attack aircraft, twin-engine land-based attack aircraft
Mass: 848 kg (1,870 lb)
Maximum speed: 78 km/h (42 kn)
Place of origin: Empire of Japan