Contact Form for Constant Speed Propellers Contact Us (Constant Speed) Name * First Company Last Email * Phone Address, City, State, Zip Aircraft Make & Model * Engine Type * Engine HP * Current Propeller * Message * If you are human, leave this field blank. Submit Whirl Wind Propellers Corporation 1800 Joe Crosson Drive, Ste CEl Cajon, CA 92020Email: wwpc@whirlwindpropellers.comPh. (619) 562-3725 Download Return Authorization Form Here »