06/23/2025. Remarks by Johan Visschedijk: "The last of the six 7F.1 Snipe Mk.II prototypes (s/n B9967) was fitted with the 320 hp A.B.C. Dragonfly nine-cylinder radial engine as the Snipe Mk II. Despite the shortcomings of this engine, it endowed the Snipe with an outstanding performance when it could be persuaded to function efficiently, and, with the Dragonfly's faults still to be recognized as incurable, 30 Snipes were ordered with the Dragonfly engine on May 3, 1918.

Assigned the name Dragon, these were delivered in June and July 1919, the production prototype having appeared in the previous January. The Dragonfly-engined Snipes were produced in parallel with aircraft built from the ground up as Dragons, these having horn-balanced upper ailerons and the 360 hp Dragonfly Ia engine, armament comprising the standard pair of synchronized 0.303 in (7.7 mm) guns.

About 200 of a 300-aircraft contract were completed and efforts to cure the engine's troubles continued until the autumn of 1921. The Dragon, officially adopted at that time as a standard RAF single-seat fighter, was never issued to a squadron and was officially declared obsolete in Apríl 1923.

Span: 31 ft 1 in (9.47 m)
Length: 21 ft 9 in (6,63 m)
Height: 9 ft 6 in (2,90 m)
Wing area: 274 sq.ft (25.5 sq.m)
Empty weight: 1,405 lb (637 kg)
Loaded weight: 2,132 lb (967 kg)
Max speed: 150 mph (241 kmh) below 10,000 ft (3,050 m)
Max speed: 141 mph (227 kmh) at 15,000 ft (4,570 m)
Climb: to 10,000 ft (3 050 m) 7.5 min
Climb: to 15,000 ft (4,570 m) 13 min
Service ceiling: 25,000 ft (7,600 m)