This is the new Gemfan Flash (5149)

The new Gemfan Flash series, made of the very strong clear PC material.

Combining market trends and calculations/simulations in Ansys Fluent. This propeller has been designed by Gemfan using Catia's 3d modeling software. The most adaptive and matching propeller airfoil and style with motor is a combined result of data iterative analysis on all aspects of propeller properties.

The light blade and very smooth surfaces makes the motor response time better since it is easier to spin up. The Gemfan Flash propellers are already used on many events because their efficiency and durability.

The inverse design reduces the downwash from the blade tips. This results in less shaking issues at high speeds. You will find this props easier to tune.

The Flash props are made of very strong half clear polycarbonate. From now on crashing doesn't mean out of the game anymore (as long as you are not upside down!)

This prop can be used on the normal 5mm shafts as well as the POPO system!