Propeller, 3 1/2 in Propeller Dia. (In.), 50 CFM @ 0.000-In. SP, Aluminum Blade Material/ DIAMETER: 3.500 INCHES NOMINAL BLADE QUANTITY: 10 ATTACHMENT METHOD: SETSCREW ROTATION DIRECTION FOR WHICH DESIGNED: CLOCKWISE HUB LOCATION: CENTER SPECIAL FEATURES: DESIGNED FOR CW ROTATION FACING AIR DISCHARGE; 50 CFM MATERIAL: ALUMINUM OVERALL STYLE DESIGNATOR: 2 STRAIGHT TIP