Mitsubishi A7M

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Mitsubishi A7M "Reppu"
Description
Role Carrier-based fighter
Crew 1
First Flight
Entered Service
Manufacturer Mitsubishi
Dimensions
Length 36 ft 1 in 10.99 m
Wingspan 45 ft 11 in 14.00 m
Height
Wing area 332.2 ft² 30.86 m²
Weights
Empty 9,700 lb 4,400 kg
Loaded
Maximum takeoff
Powerplant (A7M2)
Engine Mitsubishi Ha-43
Power 2,200 hp 1,640 kW
Performance
Maximum speed 390 mph 630 km/h
Combat range mi km
Ferry range mi km
Service ceiling ft m
Rate of climb ft/min m/min
Wing loading lb/ft² kg/m²
Thrust/Weight
Power/Mass hp/lb kW/kg
Armament
Guns 2 × 20 mm cannon, 2 ×13 mm cannon

The Mitsubishi A7M Reppu (烈風, "Strong Gale") was designed as the successor to the Imperial Japanese Navy's A6M Zero, with development beginning in 1942. Performance objectives were to achieve superior speed, climb, diving, and armament over the Zero, as well as better maneuverability. As a result, the wing area and overall size were significantly greater, on par with the American P-47 Thunderbolt.

Development of the Zero successor was delayed due to Jiro Horikoshi's work on the Mitsubishi J2M Raiden, a land-based interceptor built to counter high-altitude bombers. However, high attrition rates of Zero fighter planes to the U.S. Navy's F4U Corsair and F6F Hellcat put a high priority on the Navy to bring about a successor. The development team, headed by Jiro Horikoshi, initially intended to develop a new engine, the Ha-43, for the airframe, but had to make do with the Nakajima Homare. The resulting A7M1 proved a mismatch between engine and airframe, and with a top speed barely exceeding that of the Zero, it was a disappointment. The navy ordered development to stop, but Mitsubishi continued on its own, eventually achieving a test flight with the completed Ha-43. The A7M2 achieved a top speed of 392 mph (628 km/h), while climb and other areas of performance surpassed the Zero, leading the Navy to change its mind and adopt the craft. The A7M2 was also equipped with automatic combat flaps, used earlier on the Kawanishi N1K-J, significantly improving maneuverability.

The A7M's allied codename was Sam. Eight prototypes were completed by the end of the war, but the type never saw combat.


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Designation Series

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List of military aircraft of Japan - List of fighter aircraft

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