Mitsubishi 1MF

1MF
Role	Carrier Fighter
Manufacturer	Mitsubishi Internal Combustion
Designer	Herbert Smith
First flight	1921
Introduction	1923
Retired	1930
Primary user	Imperial Japanese Navy
Number built	138

The Mitsubishi 1MF was a Japanese carrier fighter aircraft of the 1920s. Designed for the Mitsubishi Aircraft Company by the British aircraft designer Herbert Smith, the 1MF, also known as the Navy Type 10 Carrier Fighter was operated by the Imperial Japanese Navy from 1923 to 1930.

The Japanese shipbuilding company Mitsubishi Shipbuilding and Engineering Co Ltd set up a subsidiary company, the Mitsubishi Internal Combustion Engine Manufacturing Co Ltd (Mitsubishi Nainenki Seizo KK) in 1920 to produce aircraft and automobiles at Nagoya. It quickly gained a contract from the Imperial Japanese Navy to produce three types of aircraft for operation from aircraft carriers: a fighter, a torpedo bomber and a reconnaissance aircraft. To produce these aircraft, it hired Herbert Smith, formerly of the Sopwith Aviation Company to assist the design of these aircraft, Smith bringing to Japan Jack Hyland and a team of six other British engineers .

The fighter designed by Smith and his team, designated the 1MF by Mitsubishi, and known as the Navy Type 10 Carrier Fighter by the Japanese Navy (referring to the year of design of 1921, the 10th year of the Taishō period), first flew in October 1921.

The 1MF was a single-seat, single-bay biplane with unequal-span wings and all-wooden construction, powered by a 224 kW (300 hp) Hispano-Suiza 8 engine (license produced as the Mitsubishi Hi engine). It was fitted with claw-type arrestor gear for use with British-style fore and aft arrestor cables.

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