Gemfan 2925 Ducted PC 5-Blade Propeller 2.9x2.5 2mm Mount - Clear Gray - (2CW+2CCW)

Name: Gemfan 2925 Ducted PC 5-Blade Propeller 2.9x2.5 2mm Mount - Clear Gray - (2CW+2CCW)
Brand: Gemfan
SKU: DRFC-1348
Price: 229.00 INR
Availability: OutOfStock

₹229.00 (Inclusive of all taxes)

Out of Stock

The Gemfan 2925 is a 5-blade ducted propeller designed for 2.9-inch CineWhoop and ducted drone platforms, featuring a 2.5-inch pitch and a 2mm mounting hole for compatibility with motors like the DJI Avata, 1507, and 2004 sizes. Constructed from durable PC (Polycarbonate), it offers a balance of rigidity and impact resistance for stable, efficient flight.

Features

5-blade ducted propeller design optimized for thrust and efficiency in confined ducts.
2.9-inch diameter with a 2.5-inch pitch for responsive control and lift.
2mm mounting hole standard for Avata, 1507, and 2004-sized brushless motors.
Constructed from high-strength Polycarbonate (PC) for durability and flexibility.
Includes a balanced set of 2 Clockwise (CW) and 2 Counter-Clockwise (CCW) propellers.

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Description

The Gemfan 2925 ducted propellers are engineered for modern CineWhoop and ducted FPV drones, where smooth, powerful, and quiet flight is essential. The five-blade configuration increases disc area loading within the duct, generating higher static thrust and improved low-speed stability compared to fewer blades, which is critical for precise indoor or proximity flying.

Made from injection-molded Polycarbonate, these props provide an optimal blend of stiffness and韧性, resisting deformation under high RPM loads while offering enough flex to absorb minor impacts. The clear gray material allows for visual inspection of blade integrity. The aerodynamic profile is designed to minimize tip vortices and turbulence, contributing to efficient power delivery and extended flight times on compatible 3S-4S LiPo setups.

Key Features

Five-Blade Ducted Design: Maximizes thrust within a ducted frame's diameter for powerful, stable lift.
Polycarbonate (PC) Construction: Offers high impact strength and fatigue resistance for long service life.
Optimized Aerofoil: Blade geometry reduces drag and improves aerodynamic efficiency across the RPM range.
Pre-Balanced Sets: Each 2CW+2CCW pack includes propellers matched for minimal vibration.
Wide Motor Compatibility: 2mm mounting hole fits a broad range of 1507, 2004, and similar ducted motor shafts.

Applications

3-inch CineWhoop builds using 1507 or 2004 motors for cinematic indoor/outdoor flight.
DJI Avata and similar pre-built ducted drone platforms for propeller upgrades or replacements.
Micro ducted freestyle drones requiring high thrust-to-weight ratios in a compact form factor.
Lightweight FPV drone builds under 400g AUW targeting smooth, stable video footage.

Technical Specifications

Diameter	2.9 inches (73.7 mm)
Pitch	2.5 inches
Blade Count	5
Mounting Hole	2 mm
Material	Polycarbonate (PC)
Weight (per prop)	4.2 grams
Color	Clear Gray
Rotation Direction	CW & CCW
Package Contents	2 x CW, 2 x CCW Propellers

Frequently Asked Questions

What motors are these Gemfan 2925 propellers compatible with?

These propellers are designed for motors with a 2mm shaft diameter, commonly found on 1507, 2004, and similar sized brushless motors used in 3-inch CineWhoops and ducted drones, including the DJI Avata. Always verify your motor's shaft size before installation.

Are these propellers balanced and ready to use?

Gemfan propellers are manufactured to high tolerances and are typically well-balanced from the factory. However, for the smoothest possible flight performance, especially at high RPMs, it is recommended to dynamically balance the propeller and motor assembly together using a prop balancer.

What is the advantage of a 5-blade design over a 3-blade for ducted drones?

A 5-blade propeller increases the total blade area within the same diameter, generating higher static thrust and improving low-speed stability and control authority. This is particularly beneficial for ducted drones (CineWhoops) where the duct limits propeller size, making them ideal for smooth, powerful, and responsive flight in confined spaces.