Hirobo HI0304116 EMBLA SZM2 Wash-Out Control Arm  [HI0304116]

Wash-out control arm for EMBLA

This is an RC-scale wash-out control arm specified for the EMBLA SZM2 line, supplied under the Hirobo HI0304116 identifier. The component serves as the linkage element that translates servo motion into controlled wash-out behaviour at the rotor head and tail linkages, and it is intended as a direct replacement or service spare for models citing the EMBLA SZM2 part set.

Installation notes: inspect existing linkage geometry before removal, retain original ball cups and hardware where possible, and confirm free movement through the full travel after fitting. Use appropriate hex drivers and check that the arm clears cyclic and tail linkages throughout collective and cyclic ranges. Do not overtighten mounting screws to avoid binding.

Tuning role: small changes or wear in the wash-out arm affect how cyclic inputs are mixed with tail control; replacing a worn arm is a straightforward way to restore predictable wash-out behaviour and consistent tail authority during hover and maneuvering. After installation, verify trim and hover performance with gentle hover checks before full-rate flight.