The 1925 Pitcairn PA-1 was designed by Agnew Larsen as a 4-5-place open cockpit biplane.
Those built include N173, N1172, N1173, and N1509.
Martinsyde produced a cabin conversion resulting in three cockpits.
Pitcairn PA-1 Martinsyde cabin conversion
PA-1 Fleetwing
Engine: 160hp Curtiss C-6
Wingspan: 38’0″
Length: 25’11”
Useful load: 1110 lb
Max speed: 110 mph
Cruise: 93 mph
Stall: 45 mph
Seats: 4-5
All Aero 