First flew on 17 January 1923.
One Cierva C-8 was purchased by Pitcairn Co for evaluation, it was the first rotary-wing craft to fly in the USA, on 18 December 1928 (p: Harold Pitcairn). It was modified to the Pitcairn-Cierva C-8 registered N418.
On 18 September 1928 a Cierva C8L Mark II was flown by its inventor from London to Paris with a passenger who was the editor of l’Aeronautique. That aircraft, G-EBYY, is preserved in the Musee de l’Air.
Cierva licensed production to Avro as the Avro 586.
Engine: 1 x Armstrong Siddeley Lynx IVC 2-cylinder, 150kW
Main rotor diameter: 12.09m
Fuselage length: 8.69m
Height: 4.50m
Max take-off weight: 1120kg
Max speed: 161km/h
Service ceiling: 1200m
Range: 410km
Pitcairn-Cierva C-8
Engine: 220hp Wright J-5
Wingspan: 28’0″
Length: 28’4″
Rotor diameter: 38’8″
Seats: 2
All Aero 