Gemfan Vortex 7x15 Glass Fiber Nylon Fixed-Wing Propeller (2CW+2CCW)

The Gemfan Vortex 7x15 is a two-blade electric propeller from Gemfan's Vortex fixed-wing series, made from glass-fibre-reinforced nylon. The set includes two standard-rotation 7x15E and two reverse-rotation 7x15R props (2 CW + 2 CCW), covering a single-motor speed plane with spares or a counter-rotating twin.

Key features

• CFD-optimised airfoil: blade profile shaped for efficient thrust at high airspeed.

• Slim blade tips: reduce tip-vortex loss and noise.

• Matte leading-edge finish: intended for cleaner airflow at high speed.

• Textured hub: grips the prop adapter for secure installation.

• Factory-tested and dynamically balanced: smooth running with less vibration passed into the airframe.

Specifications

• Diameter: 7 in (177.8 mm)

• Pitch: 15 in (381 mm)

• Blades: 2

• Material: Glass-fibre-reinforced nylon

• Hub diameter: 14.8 mm

• Hub thickness: 9 mm

• Centre bore: 6.35 mm (1/4 in)

• Weight: 10.2 g per propeller

• In the box: 2 × 7x15E, 2 × 7x15R, shaft adapter rings

With pitch more than twice the diameter, the 7x15 is a top-speed prop for pylon racers and other fast, clean airframes. Static thrust is modest because the blades work best once airspeed builds, while current draw is high, so confirm full-throttle current with a wattmeter against your motor and ESC ratings before flying.