Propeller, Propeller Dia. (In.) 20 in, Bore Dia. (In.) 1/2 in, Bore Dia. (mm) 12.7 mm, Pitch 22 Degrees , Rotation CW, Hub Location Intake, Number of Blades 3, HP 1/4 hp, RPM 1174 RPM, Drive Type Direct Drive, Blade Material Aluminum