Yokosuka K5Y
The Yokosuka K5Y was a two-seat unequal-span biplane trainer (Allied reporting name: "Willow") that served in the Imperial Japanese Navy during the World War II. Due to its bright orange paint scheme (applied to all Japanese military trainers for visibility), it earned the nickname "aka-tombo", or "red dragonfly", after a type of insect common throughout Japan.
Design and development
The aircraft was based on the Yokosuka Navy Type 91 Intermediate Trainer, but stability problems led to a redesign by Kawanishi in 1933. It entered service in 1934 as Navy Type 93 Intermediate Trainer K5Y1 with fixed tail-skid landing gear, and remained in use throughout the war. Floatplane types K5Y2 and K5Y3 were also produced. After the initial 60 examples by Kawanishi, production was continued by Watanabe (556 aircraft built), Mitsubishi (60), Hitachi (1,393), First Naval Air Technical Arsenal (75), Nakajima (24), Nippon (2,733), and Fuji (896), for a total of 5,770. These aircraft were the mainstay of Imperial Japanese Navy Air Service's flight training, and as intermediate trainers, they were capable of performing demanding aerobatic maneuvers. Two further land-based versions, the K5Y4 with a 358 kW (480 hp) Amakaze 21A engine and the K5Y5 with a 384 kW (515 hp) Amakaze 15, were projected but never built[1].
Variants
- K5Y1
- K5Y2
- Floatplane version, with Amakaze 11 engine.
- K5Y3
- Floatplane, with 384 kW (515 hp) Amakaze 21.
- K5Y4
- Projected land-based version with 358 kW (480 hp) Amakaze 21A. Never built.
- K5Y5
- Projected land-based version with 384 kW (515 hp) Amakaze 15. Never built.
Operators
- Japan
Specifications (K5Y1)
Data from Japanese Aircraft of the Pacific War[2]
General characteristics
Performance
Armament
- Guns: 1× fixed, forward-firing 7.7 mm (.303 in) Type 89 machine gun and 1× flexible, rearward-firing 7.7 mm (.303 in) Type 92 machine gun
- Bombs: Up to 100 kg (220 lb) of bombs on external racks
See also
- Aircraft of comparable role, configuration and era
References
- Notes
- Bibliography
- Collier, Basil. Japanese Aircraft of World War II. London: Sidgwick & Jackson, 1979. ISBN 0-283-98399-X.
- Francillon, R.J. Japanese Aircraft of the Pacific War. London: Putnam & Company Ltd., 1970 (2nd edition 1979). ISBN 0-370-30251-6.
- Mondey, David. The Concise Guide to Axis Aircraft of World War II. London: Chancellor Press, 1996. ISBN 1-85152-966-7.
- Tagaya, Osamu. Imperial Japanese Naval Aviator, 1937-45. Botley, Oxfordshire, UK: Osprey Publishing, 2003. ISBN 1-84176-385-3.
External links
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I-go Ko-gata • KY1 • K2Y • K4Y • K5Y
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World War II Allied reporting names |
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Japanese Navy Trainer Aircraft designations
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