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Japan's Imperial Navy flag

Japan's Mitsubishi A7M Reppu (hurricane) fighter


The A7M was to succeed the A6M Reisen. Design work started in 1940, but due to other production receiving the priority a prototype was not finished until 1944. Jiro Horikoshi designed the A7M.

On July 6, 1942, the Navy issued another set of specifications for a carrier fighter to be able to go 400 mph at 19,500', climb to 19,500' in six minutes, have two 20 mm cannons, and be able to maneuver as well as the A6M3.

Jiro Horikoshi wanted the Mitsubishi MK9A (2,200 HP) engine to be used by the Navy wanted the Nakajima NK9K (2,000 HP) to be used.

Earthquake and Bombs

In December 1944 an earthquake and air raids at the factory delayed production. Many of the prototypes were also destroyed.


The A7M1 prototype first flew on May 6, 1944. Work was stopped on this prototype as it didn't meet the specifications. Work on the other prototypes continued.

On October 13, 1944, the A7M2 prototype flew and met the specifications.


  • Prototype: 9
  • Mitsubishi A7M1: 1
  • Manufacturer: Mitsubishi Jukogyo K.K.


  • Mitsubishi A7M1: Prototype with Nakajima Nk9K engine.
  • Mitsubishi A7M2: Prototype with Mitsubishi MK9A engine.
  • Mitsubishi A7M3: Land based model. None built.


  Mitsubishi A7M2 Reppu
Type Fighter
Crew 1
Engine (Type) Mitsubishi MK9A
Cylinders Radial 18
Cooling Air
Net HP 2,200
Propeller blades  
Span 45' 11"
Length 36' 1"
Height 14'
Wing area  
Loaded 10,406 lb
Speed at 21,655' 390 mph
Cruising speed  
Service ceiling 35,760'
Range 570 miles
Armament 2: MG
2: 20 mm
Bombs 1,100 lb


  1. World War II Airplanes Volume 2, Enzo Angelucci, Paolo Matricardi, 1976
20th Century American Military History Crucial Site