Hirobo HI0402729 Right collective pitch arm for Shuttle RG, carbon replacement part  [HI0402729]

Right Collective Pitch Arm for Shuttle RG

This is an RC-scale right-side collective pitch arm from Hirobo intended for Shuttle RG series helicopters, supplied as a carbon replacement component to interface with collective pitch linkages.

The part serves a focused tuning and repair role, replacing worn or damaged collective pitch arms to restore linear response between the servo and main rotor pitch mechanism. As a carbon piece it prioritises stiffness and dimensional stability, helping maintain consistent pitch geometry under load.

Installation notes: remove the original arm using the existing linkage hardware, confirm the spline and mounting orientation, fit the carbon arm in the same position, and tighten fasteners to match the original torque while checking free movement through the full pitch range. Verify rotor tracking and servo centring after installation.

Tuning role: this arm is a direct replacement to preserve factory geometry; if you change arm length or linkage geometry elsewhere, re-check end points and sub-trim on the transmitter before flight to prevent over-travel.