Gemfan Flash 2540 Durable 3 Blade (Clear) - Set of 8

Sale price $3.29 Regular price $3.99

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Gemfan Flash Propellers have been specifically designed for high-speed racing. The inverse tip design helps to reduce blade tip vortex and the lightweight of the propeller means it has a smaller moment of inertia and fast response time.

Gemfan designers use CATIA modeling software and Ansys Fluent to design their Flash propeller airfoils and blade style. Combining the most effective airfoils with different motors to get the most iterations on their design. Testing factors such as surface pressure, airfoil optimization, lift force, resistance, and torque have resulted in the Flash series - made just for racing.


  • Item name: Flash 2540 3-blade propeller
  • Size: 2540, 2.4x4
  • Material: PC
  • Weight: 1g
  • Mounting hole: 1.5mm
  • Paddle size: 9.9mm
  • Hub thickness: 5mm


  • 4x Gemfan Flash 2540 Durable 3 Blade CW
  • 4x Gemfan Flash 2540 Durable 3 Blade CCW