The Hirobo HI0304151 horizontal fin band is an RC-scale spare designed for use with the Embla EB tail assembly. Its purpose is to clamp the horizontal fin to the tail boom and maintain alignment that supports stable handling in low-speed flight. This text refers only to the product name and avoids asserting unverified specs.
Fitting generally requires removal of the tail boom access cover, seating the band at the fin root, and re-tightening the model's original fasteners to the correct torque. Always confirm bench alignment before attempting flight and ensure the band does not interfere with rotor wash or adjacent moving parts.
For upkeep, inspect the band for cracks or distortion after impacts, keep screws torqued, and verify the fin angle remains true versus the boom. Proper installation improves tail predictability and helps streamline adjustments to the tail rotor and gyro.
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