The 1963 Scheutzow Helicopter Flexhub was described “test-bed” version of Model B N564A, the blades were set on rubber bushings instead of conventional ball- and roller-bearings..
Engine: Continental C-85, 85hp
Rotor diameter: 22’9″
Length; 18’6″
Useful load: 470 lb
Max speed: 85 mph
Cruise speed: 75 mph
Range: 170
Seats: 2