SDX SCEADU SZ-V Aluminium Pitch Arm HI0412328 by Hirobo  [HI0412328]

Aluminium pitch arm for Sceadu SZ-V heads

This pitch arm is supplied as a direct-replacement accessory for the Hirobo SDX Sceadu SZ-V rotor head assemblies. It is the mechanical conduit between the swashplate and blade pitch links, converting servo motion into blade angle control.

Installation notes: fit the arm inline with existing rotor head linkages and confirm correct alignment on the Sceadu SZ-V mounting points before final tightening. Make sure the swashplate is aligned and linkages move freely; trimming a little thread from link screws may be needed for unobstructed travel.

Flight tuning: the arm plays a key role in cyclic responsiveness and pitch balance. Using a centred arm with balanced blades and correctly seated bearings helps sustain neutral hover and consistent cyclic handling. Inspect related hardware and bearings during replacement to prevent introducing slop or binding.