Brake to Vacate (BTV) is an innovative system developed by Airbus to help pilots use aircraft brakes more effectively. This ensures that planes can exit the runway at the right speed. Effective braking is essential because it reduces the time an aircraft spends on the runway, which increases capacity and cuts down delays. If a plane slows down too soon—like between two exits—it might have to taxi slowly until it reaches the correct exit. Conversely, if the brakes aren’t applied enough, the aircraft may miss the exit altogether, potentially requiring backtracking to vacate. Both scenarios hinder efficiency, especially in low visibility conditions where the next exit isn’t easily seen from the cockpit.
Most modern airliners come with an autobrake system that automates brake applications based on pilot selections. This feature helps reduce the workload for pilots during critical moments, such as landings or rejected takeoffs. Depending on the aircraft model, there are various settings available, like LO/MED or RTO/1/2/3/MAX. However, these settings are tailored to the aircraft itself and don’t consider the layout of the airport. While pilots typically choose the best mode for landing conditions and planned exits, there are times when overriding the autobrake system becomes necessary.
The BTV system leverages GPS data to track the aircraft’s position and the layout of the aerodrome, including exit locations. Pilots select the desired runway exit during the approach, considering factors such as expected taxi routes and instructions from air traffic controllers. After this selection, the system automates the calculation and application of brakes.
The advantages of using BTV include reduced runway occupancy time, which boosts overall aerodrome capacity. It also lightens the pilot’s workload, allowing them to concentrate on other important tasks in high-pressure situations. Additionally, optimal brake usage minimizes wear and enhances passenger comfort by reducing the need for abrupt pilot interventions. Finally, BTV significantly lowers the risk of missing an exit altogether, making it a valuable tool in modern aviation. The BTV system has been installed on several Airbus models, including the A380 (2009), the A320 Family (2012/2013), and as an option on the A350XWB.
