GPH 346 Seesaw Linkage Direct Replacement - HI0403201 by Hirobo  [HI0403201]

GPH 346 Seesaw: Product Summary

This Hirobo seesaw is an RC-scale linkage component identified by model HI0403201 and matched to the GPH 346 family naming. It is presented as a direct replacement-style seesaw used in helicopter rotor linkages, intended to restore or maintain correct control geometry without implying outside vehicle use.

The article focuses on practical fit and function: verify that the part aligns with existing linkage points, check for endplay, and confirm smooth motion through the control arc. The seesaw's role is to transfer collective and pitch inputs between cyclic/swash components, so attention to alignment affects tracking and response.

Installation notes: inspect mating pivots and fasteners for wear before fitting, ensure link lengths and ball/snap joints are matched to the original arrangement, and verify full travel and centring after installation. During tuning, small changes to seesaw position can be used to refine pitch curves and cyclic balance; adjust incrementally and recheck control outcomes.