What is the minimum braking action rating for takeoff?

The minimum braking action rating for takeoff is "Good." This rating indicates that the runway conditions are generally safe for aircraft operations, with adequate braking performance. A "Good" rating suggests that while the runway may be wet or contaminated to some degree, it still allows for safe takeoffs with expected stopping distances within normal limits. Pilots are trained to rely on this rating to determine whether the conditions are suitable for takeoff and to adjust their procedures accordingly.

In aviation, braking action ratings are crucial for assessing runway conditions. A "Fair" rating, for instance, may indicate that braking action is variable and that caution is warranted, whereas "Excellent" denotes optimal conditions. A "Poor" rating would suggest dangerously low braking performance, making takeoff unsafe. Thus, a "Good" rating represents the threshold that allows pilots to proceed safely with takeoff, ensuring that they can maintain control of the aircraft during the crucial initial stages of flight.