Aircraft Data Sheet: Cierva C-29 (1934)

Cierva C-29
First flight:  
Rotor diameter: 15.24m/50ft 0ins
Length: 11.58m/38ft 0ins
Max weight: 2,268 kg/5000lb
Max speed: (estimated): 139knots/257km/h
Power: One 600shp/447kW
Armstrong Siddeley Panther II
No Built: One prototype only

Five seat gyroplane produced for Cierva, a single prototype was built but never progressed beyond the ground running phase due to ground resonance for which no remedy could be found.