/ Gloster Gamecock
The Gloster Gamecock was a biplane fighter of the Royal Air Force, a development of the Mk III Grebe.
Prototype to Air Ministry Specification 37/23 powered by a Jupiter IV engine and first flown in February 1925.
Prototype with Jupiter IV engine.
Prototype with Jupiter VI engine.
Gamecock Mk I
Production single-seat fighter aircraft for the RAF, 90 built.
Gamecock Mk II
Single-seat fighter aircraft with revised wing and tail.
One new-built for RAF with another Mk I converted to Mk II standard.
There were three exported to Finland in 1928, with a further 15 built under licence in Finland from 1929–1930 as the Kukko.
The type remained in Finnish service until 1944.
Gamecock Mk III
One RAF Gamecock Mk II modified with lengthened fuselage for spin trials.
A carrier-based version of the Gamecock produced as a private venture.
Manufactured under licence for the Imperial Japanese Navy as the Nakajima A1N.
About 150 were operated from 1929 to 1935 and saw combat during the Shanghai incident in 1932.
108 aircraft were built.
19 ft 8 in (5.99 m)
29 ft 9.5 in (9.081 m)
9 ft 8 in (2.95 m)
264 sq ft (24.5 m2)
1,930 lb (875 kg)
2,860 lb (1,297 kg)
50 imp gal (60 US gal; 230 L)
1 × Bristol Jupiter VI 9-cylinder air-cooled radial piston eninge, 425 hp (317 kW)
2-bladed Watts wooden fixed-pitch propeller, 9 ft 0 in (2.74 m) diameter
155 mph (249 km/h, 135 kn) at 5,000 ft (1,524 m)
145 mph (126 kn; 233 km/h) at 10,000 ft (3,048 m)
365 mi (587 km, 317 nmi)
2 hours 30 minutes
22,100 ft (6,700 m)
Rate of climb
7,066 ft/min (35.90 m/s) at 1,000 ft (305 m)
Time to altitude
10,000 ft (3,048 m) in 7 minutes 36 seconds
10.8 lb/sq ft (53 kg/m2)
0.15 hp/lb (0.25 kW/kg)
2 × 0.303 in (7.7 mm) Vickers machine guns.
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