Product overview
The Gemfan 31mm-2 (1210) is a two-blade PC propeller developed for ultra-light Tiny Whoop drones. Its nominal 31mm size is also specified as a 1.2-inch diameter, paired with a 1-inch pitch and a weight of 0.19g per propeller. The lightweight construction and two-blade layout target efficient operation and responsive throttle control on small aircraft. Intended uses include indoor flying, micro racing, micro freestyle, training, and whoop setups focused on longer flight duration.
Integration centers on a 1mm press-fit shaft mount, with 0802 motors recommended and a supported micro drone build weight of 25–35g. These dimensions and the stated weight range define the intended installation scale; the motor compatibility description covers most 0802 motors. The supplied configuration consists of four clockwise and four counterclockwise propellers in Clear Black. This is a propeller package for a micro drone build, with PC construction intended to provide impact and wear resistance.
