Folding Propeller Size Shoulder Robbe CFK 10 x 6 8mm Robbe CFK 11 x 7 8mm Robbe CFK 12 x 7.5 6mm Robbe CFK 12 x 7.5 8mm Robbe CFK 13 x 8 8mm Robbe CFK 14 x 9 8mm Robbe CFK 15 x 10 8mm Robbe CFK 16.5 x 10 8mm Robbe CFK 16 x 11 8mm Robbe CFK 18 x 12 8mm Robbe CFK 18.5 x 12 8mm Robbe CFK 20 x 13 8mm
Robbe CFK (Carbon-Fiber) folding propellers were specifically developed for high performance, competition flying. All Robbe CFK blades have 6mm and 8mm shoulder. - Diagonally laid CF cloth for extreme torsion rigidity - High Carbon Fiber content for light weight - Polished clear surface coat - Metal pivot bushings (Some blades only) Sold only in pairs.