This is the Bell-Hiller rotor head upgrade kit for the Heli-Max Axe CP and Axe CP-L Mini Electric Helicopters.
Increases hovering stability in windy conditions and in forward to 3D flight performance. Linkage, mixing arm ratios, fly bar weighting and head dampening are all adjustable. Accepts a wide variety of blade hub widths. More durable than plastic components.
Disassembly of rotor head
The screw that holds the mixing arm to the blade grip is 2mmx4mm in the threaded area and is coarse thread, part number HMXE7343
The screw that holds the ball studs to the mixing arm are 1.5mm X 5mm threaded area coarse. (Unfortunately at this time this screw is unavailable separately.)