Further development of the Gloster III, the Gloster VI was the first monoplane. With spruce sheet-covering, the VI was powered with a Napier Lion VIID V-12.
Two specially built single seat racers were entered for the 1929 Schneider Trophy Contest, N249 and N250. Technical snags, petrol feed and air intake, could not be solved in time to prevent the entries from being withdrawn.
N249, flown by F/Lt G.H. Stainforth of the RAF High Speed Flight, on 10 September 1929, broke the absolute speed record averaging 336.3 mph over Calshot.
Engine: 1 x Napier Lion VIID, 984kW
Max take-off weight: 1669 kg / 3680 lb
Empty weight: 1036 kg / 2284 lb
Wingspan: 7.92 m / 25 ft 12 in
Length: 8.23 m / 27 ft 0 in
Height: 3.29 m / 10 ft 10 in
Wing area: 9.85 sq.m / 106.02 sq ft
Max. speed: 565 km/h / 351 mph
All Aero 