Hirobo HI0404471 Tail Shaft Holder 19mm 60-BL  [HI0404471]

Fit, function and preflight checks

This RC-scale tail holder is a replacement-level component identified as Hirobo HI0404471 and marked 60-BL, configured for 19mm tail shaft fitment. It is supplied as a common spare for Hirobo models in the Eagle, Freya, EX and SX families and functions as the mechanical support around the tail shaft and tail rotor assembly.

Functionally the part locates the tail shaft, preserves alignment with the tail drive and provides a mounting interface for tail linkages. Confirm the 19mm diameter matches your current shaft and inspect for sufficient clearance to frames and bearings to prevent interference or binding.

Fitting advice: check fastener lengths and correct thread engagement for your helicopter, apply thread-lock where recommended by model practice, and perform a careful ground hover to confirm tail tracking and vibration are acceptable. Ensure the 60-BL code is the variant you require when replacing parts.