Gemfan FLASH 2540 3-Blade Propeller

Product Overview

The Gemfan FLASH 2540 is a high-performance 3-blade propeller engineered for freestyle and racing micro drones. Featuring a 2.5-inch diameter and a 4-inch pitch, it delivers aggressive thrust response, rapid acceleration, and sustained power output. Constructed from durable PC (polycarbonate), the propeller ensures precise control and stability during fast maneuvers, climbs, and racing scenarios.

Its three-blade configuration and optimized hub design provide excellent power transfer efficiency and dynamic balance, making it ideal for pilots seeking responsive and high-energy flight performance. Recommended for use with 1105 motors, compatible with 1104–1106 motor classes.

Key Features

• 3-blade design for rapid acceleration and precise control

• Large 4-inch pitch for strong thrust and high-speed performance

• Reinforced hub for stable power transfer and reduced vibration

• Durable PC material for long-lasting, impact-resistant operation

• Balanced for responsive flight in freestyle, racing, and indoor/outdoor applications

Applications

• Freestyle FPV drones

• Micro drone racing and agility training

• Rapid climbs and high-speed aerial maneuvers

• Indoor and outdoor micro drone performance flights

Features & Advantages

Responsive Thrust

The three-blade design combined with a large pitch delivers immediate power feedback, enhancing control during aggressive maneuvers.

Sustained Power

Optimized blade geometry ensures continuous thrust and stability for climbing and racing scenarios.

High-Strength Material

Constructed from durable polycarbonate, reducing deformation and improving flight reliability.

Dynamic Balance

Precision-balanced hub reduces vibration and provides smoother power delivery.

Easy Installation

3-hole fixed mounting interface ensures simple and secure installation on compatible motors.

Specifications

• Series: FLASH

• Model: 2540

• Material: PC (Polycarbonate)

• Blade Count: 3 blades

• Prop Diameter: 2.5 inch (63.5 mm)

• Pitch: 4 inch

• Hub Diameter: 9.2 mm

• Hub Thickness: 5 mm

• Max Blade Width: 9.9 mm

• Mounting Interface: 3-hole fixed

• Weight (per prop): Approx. 0.98 g

• Recommended Motor: 1105

• Compatible Motors: 1104–1106

• Packaging: 4 CW + 4 CCW per pack (8 pcs)

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