Hirobo HI0402802 Shuttle Challenge Rotor Head Seesaw  [HI0402802]

Shuttle Challenge rotor head seesaw

This is an RC-scale rotor head seesaw designed as a direct replacement component for the Shuttle Challenge rotor head assembly. The part serves as the central seesaw/linkage that transmits swashplate motion to blade pitch, and it is intended for use in scale helicopter head tuning and routine maintenance.

Compatibility is governed by the product name, so fitment targets Shuttle Challenge rotor head assemblies; do not assume compatibility with unrelated models without checking your head layout. The component is intended to integrate with existing head bearings and linkages in a standard collective/cyclic setup.

Installation notes—kept intentionally high level: access the rotor head, remove the original seesaw while noting linkage positions, install the replacement ensuring alignment of pivot points and secure the link connections, then recheck blade pitch neutrality and tracking at zero collective. After reassembly, verify smooth movement through the full pitch range and confirm no binding in the head assembly before flight.

Tuning role—this seesaw is a precision linkage element that affects neutral pitch and the balance between collective and cyclic inputs; small misalignment or wear here can shift collective mid-point and change cyclic feel, so correct positioning and minimal play help preserve predictable control response and make pitch-trim adjustments more consistent.