Supplied as a common replacement for HIROBO helicopter models, this RC-scale tail rudder restores yaw authority and tail stability. The Dumper Rudder (80) is intended for use on supported Eagle, Freya, EX and SX airframes where the original rudder geometry aligns.
The unit is molded from plastic to allow straightforward replacement during maintenance or after minor collisions. It acts as the primary tail control surface, translating servo commands into smooth tail movement and providing a reliable baseline for trim work.
Installation notes: attach the rudder to the tail assembly using the existing linkage and fasteners on compatible airframes. Make sure the control horn and linkage are aligned with the servo at neutral before final clamping, and check that the surface moves freely. When tuning, apply small adjustments to trim and endpoints and verify hover characteristics after each change.
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