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The Mitsubishi 1MF10 or Mitsubishi Experimental 7-Shi Carrier Fighter (七試艦上戦闘機) was a prototype Japanese monoplane single-seat carrier-based fighter aircraft of the 1930s. Two were built for the Imperial Japanese Navy, but both were lost in crashes, with no production following.
Design and development
In April 1932, the Imperial Japanese Navy issued a specification for a replacement for its current carrier-based fighter, the Nakajima A2N, asking for designs from both Mitsubishi and Nakajima. Unlike the biplane which was to be replaced, both competitors submitted monoplanes, with Nakajima offering a version of its Type 91 parasol-wing fighter, already in production for the Japanese Army. Mitsubishi assigned design of its contestant to a team lead by Jiro Horikoshi, which created the first low-wing cantilever monoplane to be designed in Japan, the Mitsubishi 1MF10.
The 1MF10 was of all-metal construction, with a monocoque duralumin fuselage, with duralumin wing structure covered in fabric, with the pilot accommodated in an open cockpit. The aircraft was powered by a Mitsubishi A4 two-row 14-cylinder radial engine driving a two-bladed propeller. It had a fixed tailwheel undercarriage.
The first prototype 1MF10, with the Navy designation Experimental 7-shi Carrier Fighter[a] made its maiden flight in March 1933. It was destroyed in July 1933 when its tail broke up during diving tests, although the pilot escaped by parachute. The second prototype had a revised undercarriage, with the main wheels and undercarriage legs faired into streamlined spats. It was also destroyed in a crash, when it could not be recovered from a flat spin in June 1934.
Although the design was advanced, it was rejected by the Japanese Navy, having poor handling and not meeting the performance requirements of the specification. It did form the basis of more advanced designs, however, with Horikoshi using elements of it such as the box-spar in the later successful Mitsubishi A5M fighter of similar layout.
Data from Japanese Aircraft 1910–1941General characteristics
- Crew: 1
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- Powerplant: 1 × Mitsubishi A4 14-cylinder air-cooled radial engine, Script error: No such module "convert".
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- Endurance: 3 hr</ul>Armament
- Guns: 2× 7.7 mm machine guns
- Aircraft of comparable role, configuration and era
Appearances in media
- Mikesh and Abe 1990, p. 170.
- Green and Swanborough 1994, p. 407.
- Mikesh and Abe 1990, pp. 2, 286.
- Mikesh and Abe 1990, pp. 170–171.
- Mikesh and Abe 1990, p. 171.
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