In 1964 Fritz Wigal built an experimental open-frame, single place, autogyro, N3W. The engine could be pivoted to direct prop blast against a 4-bladed stub rotor located above the main rotor.
Engine: McCulloch O-100, 72hp
Rotor diameter: 20’0″
Empty weight: 320 lb
Gross weight: 570 lb
Useful load: 250 lb
Max speed: 75 mph
Cruise speed: 60 mph
Min speed: 15 mph
Take-off run: 100 ft
Seats: 1
All Aero 