Tail Boom Brace Set L=500 for Hirobo Eagle/Freya/EX/SX - HI0404652  [HI0404652]

Structural role and tuning impact

The HI0404652 tail boom brace is an RC component intended for Hirobo Eagle, Freya, EX and SX helicopters. L=500 marks the brace length chosen to match those models' boom spans.

Primarily the brace strengthens the boom assembly to keep it aligned under stress and provides a stable platform when adjusting tail stiffness and dampening. The result is reduced movement between supports and more consistent tail response during tuning flights.

Installation notes for model builders and tuners:

• Fit the brace so its mounting points coincide with the helicopter's boom supports and clamps.
• Torque fasteners evenly to avoid bending the boom or creating preload that distorts alignment.
• After installation, check tail rotor tracking and tail pitch response at low throttle, then verify stability during hover.

Practical tuning tips:

• Step up tail rigidity gradually and test after each change; modest steps usually produce the best results.
• If vibration appears after fitting the brace, check that the brace is mounted symmetrically and the boom is straight before altering gyro or tail rotor components.
• Incorporate the brace into an overall tail setup process that includes correct linkage geometry and servo centring checks.