Gemfan 3520-3 Tri-Blade Propeller

Product Overview

The Gemfan 3520-3 is a high-performance 3.5-inch tri-blade propeller designed for freestyle micro drones and lightweight 1806–2004 motor setups. With a 2-inch pitch, 89.5mm diameter, and a weight of just 1.8g, it delivers smooth, responsive flight while maintaining a lightweight profile.
Constructed from durable PC (Polycarbonate), the 3520-3 features a three-hole T-mount (1.5mm) hub for improved dynamic balance and secure installation. Available in Clear Gray, Purple, Yellow, and Clear Blue, it combines visual appeal with performance for freestyle, racing, and micro-class applications.
Supporting a maximum takeoff weight of 250–380g, this propeller is ideal for pilots seeking agile handling, precise control, and reliable durability.

Key Features

• Tri-blade design: Provides balanced thrust and responsive control

• Lightweight & efficient: Just 1.8g, improving acceleration and maneuverability

• Three-hole T-mount: Enhances dynamic balance and secure installation

• Durable PC material: Impact- and wear-resistant for long-lasting performance

• Multiple color options: Clear Gray, Purple, Yellow, and Clear Blue for personalization and visibility

Applications

• 3.5-inch freestyle drones

• Micro FPV racing and acrobatic drones

• Indoor and outdoor high-speed micro flight

• Drone training and practice for freestyle maneuvers

• Lightweight drones with 1806–2004 motor setups

Features & Advantages

Smooth Flight Performance: Optimized tri-blade profile ensures stable airflow and agile handling.

Lightweight Design: Reduces rotational inertia for faster acceleration, sharper turns, and better throttle response.

Dynamic Balance & Stability: Three-hole mounting hub improves balance, minimizing vibration for smoother flight.

Durable & Reliable: High-strength PC construction resists wear and impacts, extending propeller life.

Visual Identification: Multiple color options allow easy tracking and aesthetic customization.