Hirobo HI2511008 Cross Member M3 x 69 — Helicopter cross member  [HI2511008]

Helicopter cross member

This RC-scale cross member is listed as HIROBO 2511-008 and appears as a straightforward replacement part for helicopter general assemblies. It serves as a structural connector within a helicopter frame, locating and holding components in alignment during normal operation and maintenance.

Installation is typically mechanical: align the cross member with the corresponding mounting holes, secure with M3 fasteners to match the M3 dimension indicated in the part name, and verify alignment under the normal rotor and drivetrain preload. The part name specifies M3 x 69 which guides fastener selection and hole spacing checks.

From a tuning perspective, the cross member affects chassis rigidity and parts registration rather than aerodynamics or electronic behaviour. When troubleshooting vibration or misalignment, check cross member seating and fastener torque as part of the chassis inspection routine.