SDX SCEADU SZ-V Pitch Arm HI0412328 Compatible Upgrade - Hirobo  [HI0412328]

Pitch arm designed for Sceadu SZ-V rotor systems

This item is a direct-replacement RC-scale pitch arm intended for the Hirobo SDX Sceadu SZ-V rotor head assemblies. It links the swash/rotor head to the blade pitch mechanism, converting servo commands into blade pitch changes.

Installation notes: install inline with existing head linkages and check fitment on the Sceadu SZ-V mounting points prior to final torque. Ensure the swashplate alignment is correct and that linkages operate without binding; minor trimming of thread on link screws can be required to secure full, smooth travel.

Tuning considerations: the arm influences cyclic responsiveness and pitch symmetry. Use a centred arm, balanced blades and properly seated bearings to support neutral hover and predictable cyclic behaviour. Inspect mating hardware and bearings when replacing to avoid introducing play.