Product overview
The Gemfan Vortex 5.3×8E / 5.3×8R electric propeller is built for fixed-wing electric aircraft. Its two-blade design combines a 5.3 inch diameter with an 8 inch pitch. Glass fiber nylon construction and precision molding provide toughness and bending resistance, while each propeller undergoes factory testing and dynamic balance control. The blade design uses CFD-optimized geometry, smooth contours and slim tips to improve thrust and energy efficiency, minimize drag, reduce noise and suppress vortices.
A matte leading edge supports efficiency at high RPM and reduces stall probability, while the textured hub surface helps secure the mounting. The hub measures 12.5 mm in diameter and 7.5 mm thick, with a 6.35 mm / 0.25 inch shaft bore. Each propeller weighs 5.3 g; total product weight with packaging is 12.5 g. Packaging contains 2 CW / 2 CCW propellers per pack, with five adapter rings in 3 mm, 4 mm, 5 mm, 6 mm and 7 mm sizes.
