Aerobatic Propellers An aerobatic airplane has either a fixed-pitch or constant-speed propeller. The pitch of the blades is the angle at which they "bite" into the air. On airplanes with a fixed ...

An aerobatic airplane has either a fixed-pitch or constant-speed propeller. The pitch of the blades is the angle at which they “bite” into the air. On airplanes with a fixed-pitch propeller ...