Hirobo HI0404542 SX Tail Blade Holder  [HI0404542]

Tail blade holder for SX

This is an RC-scale tail blade holder intended for SX-series rotorheads from Hirobo, supplied as HI0404542. The part secures the tail blade to the tail rotor assembly and serves as a locating mount during blade swaps and routine maintenance. It is a service-level replacement component used on models within the Eagle/Freya/EX/SX family.

Installation is straightforward for anyone familiar with small helicopter maintenance: remove the tail rotor or access the tail hub according to your airframe's service steps, position the holder to locate the blade shaft, and secure fasteners to the recommended torque for your model. Use the correct sized hex driver and check that the tail blade moves freely through its range with the tail servo at neutral before flight.

In tuning and setup the tail blade holder helps maintain consistent blade position and reduces lateral play at the blade root, which supports predictable tail response. After installation verify blade tracking and tail pitch linkage geometry, and conduct a ground hover to confirm control authority before any full-power flights.