BetaFPV Gemfan 1409 Propellers – 35 mm Three-Blade Propellers for Micro FPV Drones

BetaFPV Gemfan 1409 propellers are lightweight, precisely balanced three-blade propellers designed for micro FPV and whoop drones with 1.0 mm motor shafts. Their 35 mm diameter, 0.9-inch pitch, and low rotational mass help deliver quick throttle response, precise control, and stable flight performance. They are ideal for pilots seeking excellent manoeuvrability from a compact drone during fast freestyle flights or when flying in confined indoor spaces.

Made from durable polycarbonate, each propeller weighs only 0.2 grams. Low weight reduces the load on the motors and minimises rotational inertia, allowing the drone to respond quickly to throttle inputs. This results in immediate and controlled movement while maintaining precision during sudden changes of direction, rapid acceleration, and more technical manoeuvres.

Three-blade design for precise control

The three blades of the BetaFPV Gemfan 1409 propellers provide a balanced combination of thrust, stability, and control. Their three-blade design produces consistent thrust and helps the drone maintain predictable behaviour during faster manoeuvres. Precise factory balancing reduces vibration, contributing to smoother flight and helping minimise oscillations that may appear in camera footage.

Maximum blade width is 7.7 mm, while the centre section is 4 mm thick. This construction provides the compact propeller with the necessary rigidity while keeping its weight extremely low. A 0.9-inch pitch offers a suitable balance of efficient thrust and precise throttle control for a 35 mm propeller.

Compatibility with 1.0 mm motor shafts

The centre hole has an inner diameter of 1.0 mm, so the shaft size of the motors should always be checked before installation. A correctly sized shaft ensures a secure fit and helps prevent play or vibration during flight.

BetaFPV recommends using these propellers with 0802 Freestyle Motors (2026). They are also compatible with Meteor65 Pro II O4 and other micro FPV drones with similar specifications that use 35 mm propellers and 1.0 mm motor shafts. The propellers are designed for drones in the approximately 40-gram take-off weight class.

Lightweight and durable polycarbonate propellers

Polycarbonate, or PC, is widely used for manufacturing drone propellers because it combines low weight with good rigidity and impact resistance. This is particularly important for small whoop drones, which are often flown indoors, through racing gates, or in other confined environments. Collisions with walls, furniture, or course elements are common in such conditions, and the durable material helps the propellers withstand regular use.

Because propellers directly affect a drone’s flight performance, damaged, bent, or cracked propellers should be replaced promptly. Using propellers in equally good condition helps maintain consistent thrust, reduce vibration, and ensure predictable handling.

BetaFPV Gemfan 1409 propellers for micro drone maintenance and upgrades

BetaFPV Gemfan 1409 propellers are suitable for replacing worn or damaged original propellers and for fine-tuning the flight performance of a compatible micro drone. Their low weight, 35 mm diameter, 0.9-inch pitch, and three-blade design provide responsive handling and smooth, controlled flight.

The set includes four BetaFPV Gemfan 1409 propellers. Before purchasing, make sure your drone’s motors have 1.0 mm shafts and that its frame and propeller guards can accommodate 35 mm propellers.