Under the designation Avro 511 the company built the prototype of a light-weight single-seat biplane that was intended to serve as a military scout. Fuselage, tail unit and tail skid were typical and the type could be easily dismantled and transported.
The biplane wing was cellule, incorporating considerable sweepback for inherent stability, and introduced a form of trailing edge flap on the lower wing.
Flight testing proved to be successful, but for participation in the 3rd Aerial Derby race, to be flown around London in 1914, alternative wings without sweepback were fitted, together with lightweight main landing gear units. Redesignated Avro 514 in this configuration, the aircraft was extensively damaged when the landing gear collapsed while taxiing out for take-off. It was subsequently repaired and flown again, but the outbreak of WW 1 brought development to an end.
Engine: Gnome Monosoupape, 80 hp / 75 kW
Wingspan: 26 ft 0 in / 7.92 m
Length: 22 ft 4 in / 6.81 m
Height: 9 ft 4 in / 6.81 m
Wingarea: 235.0 sq.ft / 21.83 sq.m
Empty weight: 675 lb / 306 kg
MTOW: 1165 lb / 538 kg
Max speed: 95 mph / 153 kph
All Aero 