What is Maximum Braking Speed (Vbmax)?

Maximum Braking Speed (Vbmax) is defined as the maximum speed at which an aircraft can be safely brought to a stop without exceeding the acceptable limits of brake energy. This is critical for ensuring that the brakes do not overheat or become ineffective due to excessive energy being dissipated during the braking process. Vbmax is an important consideration for pilots as it directly relates to stopping distance and the aircraft’s performance during the landing phase or in situations requiring a go-around.

In contrast to other speeds related to operational limits, such as takeoff abort criteria or climb performance, Vbmax specifically focuses on the aircraft's braking capability. It informs pilots about the safe operation of the aircraft concerning its braking systems, ensuring they can effectively manage deceleration without risking brake failure.