Check the listing for details. Master Airscrew 13x6 K-Series Propeller [MAS1360]. Color: Black, Condition: New. Listed at 8.69 USD. Master Airscrew 13x6 K-Series Propeller. The K-Series propellers are designed for larger 2-stroke, and 4-stroke glow engines and electric conversion model airplanes. Made from a glass fiber composite, each Master Airscrew propeller is made with high precision to ensure extremely tight tolerances. Experience utmost efficiency and performance with Master Airscrew propellers! Features: Intended for larger 2/4-stroke and electric conversions Designed using advanced methods in airfoil selection, blade geometry carving and CFD (Computational Flow Dynamic) simulations Extremely tight tolerances allow for high consistency from prop to prop Classic series propellers are designed to give expert scale appearance to WWI and WWII model aircraft Specifications: Propeller Diameter: 13in (330.2mm) Pitch: 6in (152.4mm) Hub Thickness: 0.63in (15.9mm) Shaft Diameter: 0.31in (7.94mm) Weight: 1.55oz (43.94g) Rotation: CCW (Standard/Tractor) About Us | View Store