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

EMBLA SZM2 wash-out arm overview

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

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

Tuning role: wear or slight play in the wash-out arm changes how cyclic inputs blend with tail control; fitting a new arm restores predictable wash-out action and steady tail authority during hover and maneuvering. After installation, check trim and hover behavior with gentle hovers before returning to full-rate flight.