Hirobo HI0312003 SRB Washout Assembly for Scale Rotorcraft  [HI0312003]

Overview of the SRB washout unit

This product is an RC-scale component for SRB series rotorcraft servicing and adjustment. The HI0312003 washout assembly provides the critical mechanical interface that determines washout geometry, improving cyclic fidelity when you tune pitch and mixing on a scale helicopter model.

Fitting typically involves swapping out the existing washout linkage in the SRB head assembly, aligning the linkages for neutral travel, and ensuring smooth, unrestricted movement across the control range. Use standard hobby workshop tools and double-check ball joint seating and any play before flight testing.

In terms of tuning, this assembly affects how cyclic stick inputs alter blade pitch across the swashplate, so make small, measured changes to linkage lengths and collective mixing. The item is intended and described only as an RC-scale accessory for model helicopters.