What function does the Brake Control Unit provide for the main gear wheels after gear retraction?

The Brake Control Unit in the Dassault Falcon 7X plays a pivotal role in managing the brake system, particularly after the landing gear is retracted. When the gear is retracted, the primary function of the Brake Control Unit is to facilitate the spin down of the main gear wheels. This is essential for ensuring that the wheels do not experience undue wear or drag while the aircraft is in flight.

Spin down allows the wheels to continue rotating after they have been retracted, helping to eliminate any residual momentum smoothly without abruptly stopping them. This process ensures that the aircraft's aerodynamics are not compromised by unnecessary drag and that the integrity of the braking system is maintained for future landings.

While options such as complete lock, full stop, and pressure release might pertain to brake functionality, they do not accurately describe the specific action taken by the Brake Control Unit during the gear retraction process. Instead, the emphasis is on allowing the wheels to spin down effectively.