In 1951 British Royal Navy asked for a small and cheap anti-submarine airplane able to take off the small aircrat carriers and help bigger and more expensive planes taking off the larger ships or coastal airports. The Irish company Short designed simple light bomber with two seats (for pilot and radar operator), able to carry about 830kg of explosives, but with no guns. Two prototypes were tested in 1953 and 1954 and then on naval aircraft carrier HMS Bulwark. All tests were succes and the airplane started to be produced in two different variations: AS Mk.1 (anti-submarine for ships) and MR Mk.2 (for earth airports) with rigid wings and bigger wheels and without naval equipment. But in 1955 conceptional changes were made is British Navy and all 21 already constructed airplanes ended into warehouse before they could started to fly and later were wrecked.