 The aircraft has been manufactured in four configurations, the "A" model with fixed gear, 116 hp Lycoming (O-235-N2C), & fixed prop, the "B" model same as the "A" but with uprated 160Hp Lycoming engine (O-320-D2A), the "R" model with retractable gear, the same 160 Hp Lycoming (O-320-D2A) and the "C" model with retractable gear, constant speed prop, and 180 HP Lycoming (O-360-A1A).The aircraft has two side-by-side seats in an enclosed cockpit.The F.22 is certified in the aerobatic category capable of from -3g to +6g.