Folding Propeller Size Shoulder Graupner CFK 12 x 7 8mm Graupner CFK 13 x 7 8mm Graupner CFK 14 x 9.5 8mm Graupner CFK 15 x 8 8mm Graupner CFK 15 x 9.5 8mm Graupner CFK 17 x 10 8mm Graupner CFK 20 x 12 8mm
Graupner CFK (Carbon-Fiber) folding propellers were specifically developed for high performance, competition flying. All Graupner CFK blades have 8mm shoulder. - Diagonally laid CF cloth for extreme torsion rigidity - High Carbon Fiber content for light weight - Polished clear surface coat - Metal pivot bushings Sold only in pairs.