What critical function does the Bus Tie perform during RAT deployment?

The Bus Tie plays a vital role in the power management system during the deployment of the Ram Air Turbine (RAT) in the Dassault Falcon 7X. When the RAT is deployed, it provides emergency electrical power to critical systems in the aircraft. The Bus Tie facilitates the connection of essential buses for power distribution, ensuring that power is effectively routed to the necessary components that require electricity to operate during such situations.

By connecting the essential buses, the Bus Tie enables the emergency power sourced from the RAT to supply electricity to crucial avionics, flight control systems, and other essential equipment, thereby maintaining operational capability in flight when primary sources of power are unavailable. This connectivity is essential for the safety and functionality of the aircraft during an emergency.

In contrast, while preventing overloading, allowing for battery isolation, or increasing APU power output are important considerations in power management, they do not accurately describe the critical function of the Bus Tie during RAT deployment. The emphasis is on its role in ensuring that power can be adequately distributed to where it is most needed.