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Gemfan 8145 PC 3 Blade black three-blade propellerGemfan 8145 PC 3 Blade black three-blade propeller

Gemfan 8145 PC 3 Blade

The Gemfan 8145 PC 3 Blade is a black PC multirotor propeller intended for high-altitude and plateau operations. It combines three wide blades, a 4.5in pitch and a 205.74mm disk diameter. Its 5mm center hole and recommended 2808 900kv motor define the principal mounting and motor integration details.

GemfanDrone motor
Weight
16.5 g
Material
PC

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Product overview

The Gemfan 8145 PC 3 Blade is a propeller component for multirotor drones, with an emphasis on plateau and high-altitude operations. Its three-blade architecture combines a nominal 8-inch size with a 4.5in pitch and wide blade geometry intended to support lift in thin air. Intended uses include aerial filming, photography, heavy-lift FPV and cine-lifter drones. The black PC propeller weighs 16.5g and has a specified disk diameter of 205.74mm.

Installation centers on a 5mm hub opening, with a center thickness of 7.5mm and maximum propeller width of 26mm defining additional physical dimensions for integration. Gemfan recommends a 2808 900kv motor. The blade surfaces use a frosted front and glazed rear, a treatment intended to improve stability and reduce the likelihood of control loss at high RPM. These features describe a motor-mounted propeller component; the product configuration is neither a complete flight platform nor an airframe kit.

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Specifications

SpecificationValue & conditions
Manufacturer and modelGemfan 8145 PC 3 Blade
Product configuration8-inch, three-blade propeller
MaterialPC
Pitch4.5in
ColourBlack
Propeller disk diameter205.74mm
Center thickness7.5mm
Center hole inner diameter5mm
Maximum propeller width26mm
Weight16.5g
Recommended motor2808 900kv
Design purposePropeller geometry optimized for high-altitude and plateau drone operationsHigh-altitude and low-density air environments.
Surface treatmentFrosted front and glazed rear
Surface treatment functionDesigned to improve stability and reduce the likelihood of loss of controlAt high RPM.
Blade geometry functionLarge size, wide blades and high pitch support thrust and efficient liftLow air density environments.
Intended applicationsHigh-altitude filming and photography; plateau and thin-air operations; low-density-air quad flight; professional heavy-lift FPV and cine-lifter drones

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