Nakajima Ki-8

Ki-8

Nakajima Ki-8
Role	prototype fighter aircraft
Manufacturer	Nakajima Aircraft Company
First flight	1934
Primary user	IJA Air Force
Number built	5

The Nakajima Ki-8 (キ8, Ki-hachi) was an unsuccessful attempt by the Nakajima Aircraft Company to interest the Imperial Japanese Army Air Force in a two-seat modern monoplane fighter.^[1]

Design & Development

Development of the Ki-8, (aka Nakajima DF), began in 1933, based on an all-metal two-seat aircraft, featuring low inverted gull wings, with fixed and spatted landing gear, powered by a single 410 kW (550 hp) Nakajima Kotobuki Ha-1-3 radial engine. Proposed armament consisted of twin 7.7 mm (.303 in) machine guns firing from between the engine cylinders and a third 7.7 mm (.303 in) machine gun on a flexible mount on the back of the rear cockpit.

In initial testing, the aircraft proved unpopular with test pilots, who raised concerns about the design's aerodynamic stability . The initial prototypes were also plagued with a variety of manufacturing defects and malfunctions. Though corrections were made to improve initial design and stability problems, the performance of the aircraft was considered no better than the existing Nakajima Type 91 fighter, and as the Japanese Army Air Force had no use for two-seat fighters,^[2] the project was cancelled in 1934, after five prototype aircraft had been produced, and before the start of full production.

Variants

Nakajima Ki-8 : initial prototype (five built)

Operators

Japan

Imperial Japanese Army Air Force

Specifications (Ki-8)

Data from Famous Airplanes of the World, first series, #76: Army Experimental Fighters (1)^[3]

General characteristics

Crew: two
Length: 8.17 m (26 ft 9.6 in)
Wingspan: 12.88 m (42 ft 3.1 in)
Height: 3.57 m (11 ft 8.5 in)
Wing area: 28.5 m² (306.78 ft²)
Empty weight: 1,525 kg (3,362 lb)
Gross weight: 2,111 kg (4,654 lb)
Powerplant: 1 × Nakajima Ha-1 Kotobuki air-cooled radial engine, 410 kW (550 hp) each

Performance

Maximum speed: 328 km/h (204 mph)
Range: 1,000 km (621 miles)
Service ceiling: 8760 m (28,740 ft)

Armament

2× 7.7 mm (.303 in) forward-firing machine guns
1× 7.7 mm (.303 in) dorsal flexible machine gun

References

Wikimedia Commons has media related to Nakajima military aircraft.

Notes

Bibliography

Mikesh, Robert C.; Shorzoe Abe (1990). Japanese Aircraft, 1910-1941. Annapolis, MD: Naval Institute Press. ISBN 1-55750-563-2.
Unknown author. Famous Airplanes of the World, first series, #76: Army Experimental Fighters (1). Tokyo: Bunrin-Do, August 1976.
Unknown author. Famous Airplanes of the World, second series, #24: Army Experimental Fighters. Tokyo: Bunrin-Do, September 1990.

Aircraft produced by Nakajima Aircraft Company

Imperial Japanese Navy types

Carrier fighters	A1N A2N A3N A4N

Carrier Torpedo Bombers	B3N B4N B5N B6N

Reconnaissance aircraft	C2N C3N C6N

Dive bombers	D3N

Reconnaissance floatplanes	E2N E4N E8N

Land-based Attack Bombers	G5N G8N G10N

Interceptors	J1N J5N J9Y

Transports	L1N

Floatplane fighter	A6M2-N

Other	LB-2

Imperial Japanese Army types

Army type-year	type 91 fighter type 94 reconnaissance aircraft type 95 training aircraft type 97 fighter type 97 transport type 100 heavy bomber type 1 fighter type 2 single-seat fighter type 4 fighter

Kitai (airframe #)	Ki-4 Ki-6 Ki-8 Ki-11 Ki-12 Ki-19 Ki-27 Ki-34 Ki-43 Ki-44 Ki-49 Ki-58 Ki-62 Ki-63 Ki-80 Ki-84 Ki-87 Ki-106 Ki-115 Ki-201

WW2 Allied reporting names

Imperial Japanese Army Air Service aircraft designations

1-50	Ki-1 Ki-2 Ki-3 Ki-4 Ki-5 Ki-6 Ki-7 Ki-8 Ki-9 Ki-10 Ki-11 Ki-12 Ki-13 Ki-14 Ki-15 Ki-16 Ki-17 Ki-18 Ki-19 Ki-20 Ki-21 Ki-22 Ki-23 Ki-24 Ki-25 Ki-26 Ki-27 Ki-28 Ki-29 Ki-30 Ki-31 Ki-32 Ki-33 Ki-34 Ki-35 Ki-36 Ki-37 Ki-38 Ki-39 Ki-40 Ki-41 Ki-42 Ki-43 Ki-44 Ki-45 Ki-46 Ki-47 Ki-48 Ki-49 Ki-50

51-100	Ki-51 Ki-52 Ki-53 Ki-54 Ki-55 Ki-56 Ki-57 Ki-58 Ki-59 Ki-60 Ki-61 Ki-62 Ki-63 Ki-64 Ki-66 Ki-67 Ki-68 Ki-69 Ki-70 Ki-71 Ki-72 Ki-73 Ki-74 Ki-75 Ki-76 Ki-77 Ki-78 Ki-79 Ki-80 Ki-81 Ki-82 Ki-83 Ki-84 Ki-85 Ki-86 Ki-87 Ki-88 Ki-89 Ki-90 Ki-91 Ki-92 Ki-93 Ki-94 Ki-95 Ki-96 Ki-97 Ki-98 Ki-99 Ki-100

100-	Ki-101 Ki-102 Ki-103 Ki-105 Ki-106 Ki-107 Ki-108 Ki-109 Ki-110 Ki-111 Ki-112 Ki-113 Ki-114 Ki-115 Ki-116 Ki-117 Ki-118 Ki-119 Ki-148 Ki-167 Ki-174 Ki-200 Ki-201 Ki-202 Ki-230

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