Hacker Motor plastic cone for H or Z shaped aluminum blade holders and folding blades. The central front hole improves the ventilation of the motor.
This type of assembly allows to have an optimized aerodynamism thanks to the folded blades close to your model.
Please refer to the manufacturer's table attached in the pictures for the compatibility: blade holder / cone / elastic support.
Depending on the chosen blade holder, it may be necessary to cut the cone at the level of the blade holder passage (visible on the second picture).
