Gemfan Flash 7042 PC 2-Blade Propeller — Clear (2 Pairs — 2CW+2CCW)

The Gemfan Flash 7042 is a lightweight 2-blade polycarbonate propeller tailored for 7-inch long-range cruisers and cinematic macro-quads. By combining a low-drag bi-blade profile with a moderate 4.2-inch pitch, these propellers maximize motor efficiency and deliver the smooth cruising characteristics essential for long-distance FPV flights. They draw significantly less current than tri-blade alternatives, helping you stretch your battery capacity to the absolute limit on extended mountain surfing or distance runs.

Key features

• Highly efficient two-blade design to optimize battery consumption over long distances
• Durable polycarbonate construction resists shattering on rough landings
• Standard 5mm centre bore fits most 24xx to 28xx long-range brushless motors
• Includes a full set of four propellers (two CW, two CCW) in a clear finish

Specifications

• Diameter: 7 in
• Pitch: 4.2 in
• Blades: 2
• Material: Polycarbonate
• Hub thickness: 7.5mm
• Shaft hole: 5mm (M5)
• Weight: 5.5g
• Colour: Clear

For a highly optimized powertrain, pair these 7-inch props with low-KV 2806.5 or 2508 motors running on a 6S LiPo or Li-ion pack. This combination ensures excellent throttle resolution and stability for gentle, sustained forward flight.