Product overview
The Gemfan 1312-3 uses three glass fiber nylon blades with a 12-inch pitch and a 330.2 mm diameter. Its black propeller body weighs 44.3 g, with a maximum blade width of 28.6 mm and a center thickness of 12 mm. This geometry is intended for heavy-lift aircraft and high-altitude use, including aerial cinematography and industrial UAVs carrying heavy equipment. The product is a propulsion component for integration into an aircraft, rather than a complete flight platform.
Motor integration uses a 6 mm center bore and the included 6-hole adapter. Gemfan recommends a 4218 540kv motor, making the hub dimensions and motor recommendation relevant to propulsion-system selection. The specified aircraft takeoff weight is up to 7 kg, while the separate thrust figure is up to 8 kg per axis; these describe different quantities. The propeller is intended to support lift in thin-air environments, with its glass fiber nylon construction providing rigidity and impact resistance.
