Pitcairn-Cierva PCA-1

Pitcairn had refined Autogiro development, first learning from the C8W (which was presented to the Smithsonian on July 22, 1931), then with a series of developmental aircraft, the PCA-I, 1A and lB. (The PCA-1A is currently exhibited at the American Helicopter Museum & Education Center at the Brandywine Airport, West Chester, PA on loan from the Smithsonian).

Year: 1930
Engine: Wright R-760-4, 240 hp
Gross wt: 2750 lb
Rotor dia: 43 ft
No of blades: 4
Seats: 3