Avro 521

The Avro 521 was a British two-seat fighter first flown late in 1915, based on the Avro 504. Only a prototype of the Avro 521 was built. It was powered by a 110hp Clerget engine, with a provision for a .303 Lewis Gun in the rear cockpit. 


Avro 521
Class Aircraft
Type Fighter
Manufacturer Avro
Production Period 1916 - 1916
Origin United Kingdom - UK (Great Britain)
Country Name Origin Year
United Kingdom - UK (Great Britain) 1915
ManufacturerName Production From Production To Quantity
Avro 1916 1916 1 View

The prototype underwent trials with the Royal Flying Corps (RFC) in early 1916, and 25 aircraft were subsequently ordered. However, this contract was cancelled and there is no evidence of any other Avro 521s being built. The protoype crashed at Upavon on 21 September 1916,  killing pilot Lieutenant W.H.S. Garnett.

Role Fighter
Manufacturer Avro
First flight late 1915
Number built 1


General characteristics

  • Crew: One
  • Length: 28 ft 2 in (8.58m)
  • Wingspan: 30 ft 0 in (9.14 m)
  • Height: 9 ft 10 in (3.00 m)
  • Wing area: 266 ft (24.71m)
  • Empty weight: 1,150 lb (522 kg)
  • Loaded weight: 1,995 lb (905 kg)
  • Powerplant: 1 x Clerget 9Z nine cylinder rotary engine, 110 hp (82 kW)

Performance

  • Maximum speed: 94.6 mph (152 km/h, 82 knots) at sea level
  • Wing loading: 7.5 lb/ft (36.6 kg/m)
  • Power/mass: 0.055 hp/lb (0.091 kW/kg)
  • Time to 6,000 ft: 14 minutes
  • Endurance: 4.5 hours

Armament

  • Guns: 1 x rear mounted .303 inch Lewis gun

End notes