Miles M.20

The Miles M.20 was a Second World War fighter developed by Miles Aircraft in 1940. It was designed as a simple and quick-to-build “emergency fighter” alternative to the Royal Air Force’s Spitfires and Hurricanes should their production become disrupted by bombing expected in the anticipated German invasion of England. Due to dispersal of manufacturing, the Luftwaffe’s bombing of the Spitfire and Hurricane factories did not seriously affect production, the M.20 proved unnecessary and the design was not pursued.

The first prototype, with the B-class serial U-9 first flew on 15 September 1940, and was tested at the A & AEE under the military serial number AX834 against Specification F.19/40. Armed with eight .303 Browning machine guns like the Hurricane, the M.20 prototype was faster than the Hurricane but slower than Spitfire types then in production, but carried more ammunition and had greater range than either. As the Luftwaffe had been defeated over Britain, the need for the M.20 had vanished and the design was abandoned without entering production. The first prototype was scrapped at Woodley.

A second prototype, U-0228 (later DR616) was built to Specification N.1/41 for a Fleet Air Arm shipboard fighter, equipped with an arrestor hook and catapult launch points. It first flew on 8 April 1941. This variant could be launched by catapult aircraft merchant ships which lacked flight decks so the aircraft were to be ditched after their mission, and to facilitate this the undercarriage could be jettisoned. However, obsolete Hurricanes were modified to fill this role, which rendered a shipboard variant of the M.20 unnecessary. Consequently, this prototype was also scrapped.

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