Gemfan 2020 – Four-Blade Propellers for 2-Inch FPV Drones

Gemfan 2020 is a set of four-blade 2-inch propellers designed primarily for 85 mm brushless FPV and cinewhoop drones. Compact construction, low weight and an aerodynamic four-blade design help provide strong thrust, precise control and a smooth flight feel. These propellers are well suited for flying indoors, in tight spaces and in other environments where stable and controlled drone handling is essential.

Package includes four propellers: two clockwise-rotating CW propellers and two counter-clockwise-rotating CCW propellers. This provides a complete propeller set for one quad-motor FPV drone.

Four-Blade Design for Stable Flight

Four-blade design allows Gemfan 2020 propellers to generate a strong and even airflow within a compact form factor. Compared with propellers featuring fewer blades, this configuration helps improve cornering grip, makes altitude control more precise and delivers a smoother response to throttle changes. These characteristics are particularly useful on cinewhoop drones, which are often flown close to people or objects while capturing slow and controlled footage.

A 2-inch size and approximately 50.3 mm diameter make these propellers suitable for compact ducted or open-frame FPV drones designed to accommodate propellers of this size. Gemfan 2020 combines good thrust, efficient power delivery and stable handling, making it suitable for both smooth cinematic flights and more dynamic freestyle flying.

Lightweight and Durable Polycarbonate Construction

Gemfan 2020 propellers are made from polycarbonate, also known as PC material. This material combines low weight, flexibility and good impact resistance, which is especially important for small FPV drones. Contact with walls, gates or other obstacles is common when flying indoors, and durable material helps reduce damage caused by minor collisions.

Each propeller weighs approximately 0.9 g. Low rotating mass allows motors to change speed quickly, improving drone response to control inputs. Propeller hub thickness is 4.5 mm, while a 1.5 mm shaft hole allows installation on a motor shaft with a matching diameter.

Compatibility with 1103–1105 Series Motors

Gemfan 2020 propellers are optimized primarily for 1103–1105 size brushless motors. Compatible options include 1103 8000KV motors, commonly used on 85 mm cinewhoop and micro FPV drones. Propellers are also suitable for platforms such as Beta85X and Beta85 Pro 2, provided the drone has 1.5 mm motor shafts and enough clearance for 50.3 mm diameter propellers.

Before ordering, check motor shaft diameter, supported propeller size and required rotation direction. Gemfan 2020 is designed for 1.5 mm shafts and is not compatible with motors that use a different shaft diameter or mounting system.

A Practical Choice for Cinewhoop and Micro FPV Drones

Gemfan 2020 is a suitable choice for pilots seeking lightweight, durable four-blade propellers with strong thrust for a compact 2-inch FPV drone. Balanced construction supports smooth flight and precise control, while polycarbonate material helps withstand impacts encountered during everyday use. Included CW and CCW propellers allow the complete propeller set on a quadcopter to be replaced.

With a 2-inch size, four-blade design, 1.5 mm shaft hole and compatibility with 1103–1105 motors, BetaFPV Gemfan 2020 is a practical option for maintaining or repairing 85 mm FPV and cinewhoop drones or building a new drone project.