Eagle/Freya/EX/SX Lightweight Carbon Collective Pitch Arm A - HI0404743 (Hirobo)  [HI0404743]

Lightweight Carbon Collective Arm A for Eagle/Freya/EX/SX

This A-side carbon collective pitch arm is intended for Hirobo Eagle, Freya, EX and SX helicopter ranges. It replaces the stock A-side lever in the swash-to-rotor linkage and is supplied as an upgrade to preserve crisp collective authority.

Fitment aligns with the HI0404743 designation and the parts breakdowns for Eagle, Freya, EX and SX models; the item is suitable for hobby RC helicopters only.

Tuning notes: after installing the carbon arm, reassess collective throw, dual rates and expo to optimise feel. The stiffer, lighter lever may change the collective response curve, so take incremental steps when adjusting endpoints.

Maintenance advice: after hard flights inspect the arm faces and mounting holes for hairline cracks, and replace worn pins or links to maintain predictable collective performance.