Reversed braking.

CFR · 2024-01-01 · US · Title 14

(a) The airplane must be in a three point static ground attitude. Horizontal reactions parallel to the ground and directed forward must be applied at the ground contact point of each wheel with brakes. The limit loads must be equal to 0.55 times the vertical (b) For airplanes with nose wheels, the pitching moment must be balanced by rotational inertia. (c) For airplanes with tail wheels, the resultant of the ground reactions must pass through the center of gravity of the airplane.

official document · source cfr-2024 · id 14:§ 25.507