Welcome to our web site. Windsor Propeller Company, Inc. has been making high quality Master Airscrew propellers since 1978. Computer designed and produced with advanced cad/cam machine tools, we make an extensive range of propellers for radio control airplane electric, glow and gas motors. Browse our different categories for propellers, accessories for cutting balsa wood, balancing props and gearbox kits for electric planes. You can also read up on props and some of our product instructions.