During a short field takeoff, what is the first action to take after setting flaps to 10°?

In a short field takeoff procedure, after setting the flaps to 10°, it is crucial to ensure that the aircraft is positioned correctly on the runway and that it is ready for a rapid takeoff. Applying the brakes after setting the flaps helps to hold the aircraft stationary against the thrust provided by the full power from the engines. This ensures that as the engine power is increased, the aircraft does not roll forward prematurely, which is essential in a short field scenario where every inch of the runway length is critical for an efficient takeoff.

By maintaining this position, the pilot can effectively accelerate the aircraft to takeoff speed without losing any valuable runway space. Applying brakes effectively stabilizes the aircraft for the power-up phase, allowing for a safer and more controlled short field takeoff. After achieving the necessary power and speed, the brakes can then be released for takeoff.