7042 Flash PC 2 Blade - Blue

Gemfan Flash 7042 Bi-Blade Propeller
Blade Count: 2
Diameter: 7.0 inch (~177.8 mm)
Pitch: 4.2 inch
Weight: ~5.52 g (per propeller)
Material: PC (Polycarbonate)
Hub Thickness: 7.5 mm
Blade Width: ~18 mm
Mounting Interface: 5 mm shaft hole (M5)
Compatible Motor Size: 2407 to 2408
Packaging: 2 CW + 2 CCW per pack
The Gemfan Flash 7042 bi-blade propeller strikes a balance between lightweight structure, power efficiency, and motor compatibility. Manufactured from PC, it is suitable for pilots seeking stable flight and extended endurance performance.

Key Features

• Model: Flash 7042

• Blade Count: 2

• Diameter: 7.0 inch (~177.8 mm)

• Pitch: 4.2 inch

• Weight: ~5.52 g (per propeller)

• Material: Polycarbonate (PC)

• Hub Thickness: 7.5 mm

• Blade Width: ~18 mm

• Mounting Interface: 5 mm shaft hole (M5)

• Compatible Motor Size: 2407 to 2408

• Packaging: 2 CW + 2 CCW per pack

Applications

• 7-inch class long-range (LR) and long-endurance FPV drones

• Aerial photography, mapping, and cinematic cruising platforms

• Builds utilizing 2407 or 2408 size motors for efficient propulsion

Features & Advantages

• High-Efficiency Bi-Blade Design: The two-blade configuration minimizes aerodynamic drag and rotational mass, maximizing flight efficiency and significantly extending flight time for long-range and endurance-focused operations.

• Lightweight & Optimized Performance: Weighing approximately 5.52g, the design reduces power consumption while the 7-inch diameter and 4.2-inch pitch provide ample, efficient thrust for stable cruising and smooth acceleration.

• Stable & Predictable Flight Characteristics: Engineered to deliver smooth, linear control response and excellent in-flight stability, which is critical for precise navigation, filming, and long-distance flights.

• Robust Construction & Secure Mounting: Features a thick 7.5mm hub and a universal 5mm (M5) shaft hole, ensuring durability and a reliable connection for consistent power transfer to compatible 2407-2408 motors.