This RC stabiliser blade is designated Hirobo HI0304105 and is associated with the EMBLA SZM2 line. It is supplied as the light variant of the tail stabiliser blade for models that match the original part designation.
The unit is intended to influence tail rotor stability and offer a predictable control surface for trimming and tuning tail response. The guidance here is for hobbyists performing bench setups and on-site adjustments, concentrating on the blade's effect on yaw damping and small-signal dynamics.
Installation notes: mount the blade to the stabiliser linkage and tail rotor assembly using the Embla SZM2 mounting points provided on the airframe. When replacing, ensure correct alignment with the tail boom and secure fasteners according to the model's standard hardware practice. Once installed, carry out stepwise trim changes and hover evaluations to confirm behaviour prior to full-power flights.
Tuning guidance: try small incremental trims to evaluate changes in tail oscillation and heading hold, then note settings for repeatability. The light label denotes reduced mass compared to heavy alternatives, which can alter damping and may mean adjusting tail gains or pitch curves in the helicopter's control system.
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