Gemfan Flash 7040 Tri-Blade Propeller (PC)
Product Overview
The Gemfan Flash 7040 tri-blade propeller is engineered to achieve an optimal balance between lightweight construction and superior aerodynamic efficiency, delivering exceptionally smooth and sustained power output. It is ideally suited for extended-range FPV cruising, cinematic aerial platforms, and other applications that prioritize gentle, stable, and enduring flight performance.
Key Features
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Model: Flash 7040
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Blade Count: 3
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Diameter: ~178.43 mm (~7.0 inch)
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Pitch: 4.0 inch
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Weight: ~7.9 g (per propeller)
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Material: Polycarbonate (PC)
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Hub Thickness: 7.5 mm
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Blade Width: ~18.24 mm
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Mounting Interface: 5 mm shaft hole (M5)
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Recommended Motor Size & KV: 2206, around 1500KV
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Packaging: 2 CW + 2 CCW per pack
Applications
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7-inch class long-range (LR) and endurance FPV drones
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Cinematic filming and aerial photography platforms
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Builds utilizing 2206 motors with low KV ratings (e.g., ~1500KV) for efficient power
Features & Advantages
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Optimized Aerodynamic Efficiency: The tri-blade design with a 7-inch diameter and 4.0-inch pitch is calibrated for high propulsive efficiency, reducing power consumption and enabling longer flight durations.
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Smooth & Sustained Power Delivery: Engineered to provide exceptionally linear and stable thrust, ensuring vibration-free operation, smooth footage, and predictable handling for relaxed, long-distance flights.
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Lightweight & Durable Construction: Utilizes robust PC material in a design that prioritizes weight savings without compromising on the structural integrity needed for larger propellers.
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Motor-Optimized Compatibility: Specifically recommended for 2206 motors around 1500KV, creating a matched powertrain combination ideal for efficient cruising and gentle flight characteristics.
Highlights:
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Expert Team: Specialists in composite materials, aerodynamics, and UAV propulsion systems.
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Innovative Technology: Holds nearly 100 independent design patents.
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Global Reach: Products are exported to over 60 countries worldwide.
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Market Leadership: FPV propellers account for approximately 60% of the global market share.
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Industry Recognition: The official propeller supplier for National Drone Racing Championship teams.
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Core Values: Professionalism · Quality · Innovation · Integrity · Service.
