What system uses weight-on-wheels sensors to determine the aircraft's status?

The air/ground system uses weight-on-wheels sensors to determine whether the aircraft is on the ground or in the air. This is crucial for various operational functions since the aircraft's systems need to know its position to operate effectively. For instance, certain systems such as the autopilot, flaps, and speed brakes are designed to operate differently when the aircraft is on the ground compared to when it is airborne.

Weight-on-wheels sensors provide real-time feedback about the aircraft's status, ensuring that these systems engage or disengage appropriately based on whether the aircraft is taxiing, taking off, or landing. This responsive design enhances safety and efficiency during flight operations.

In contrast, while the landing gear system is concerned with the mechanical components that support the aircraft during takeoff and landing, it does not specifically use weight-on-wheels information to determine the aircraft's status. Similarly, the brake control system is focused on managing the application and release of brakes during operation, and the pressurization system maintains cabin pressure, neither of which directly relates to determining the aircraft's airborne status.