Bleriot-SPAD 60

On 24 December 1925, the Societe Bleriot-Aeronautique received a French government order for three prototypes of a two-seat fighter powered by a 420hp Gnome-Rhone Jupiter 9Ab nine-cylinder radial engine. Designated Bleriot SPAD 60, the fighter was a single-bay biplane of mixed construction with sweptback upper wing and unswept lower wing, armament comprising two fixed forward-firing 7.7mm machine guns in the upper wing and two weapons of similar calibre on a ring mounting in the rear cockpit. The first prototype was flown on 26 June 1926, but as a result of stability problems development was abandoned in favour of the Bleriot SPAD 70.

W.Green, D.Swanborough "The Complete Book of Fighters", 2000