14 C.F.R. § 29.493 Braked roll conditions.
Title 14 - Aeronautics and Space
Under braked roll conditions with the shock absorbers in their static positions— (a) The limit vertical load must be based on a load factor of at least— (1) 1.33, for the attitude specified in §29.479(a)(1); and (2) 1.0, for the attitude specified in §29.479(a)(2); and (b) The structure must be designed to withstand, at the ground contact point of each wheel with brakes, a drag load of at least the lesser of— (1) The vertical load multiplied by a coefficient of friction of 0.8; and (2) The maximum value based on limiting brake torque.
Title 14: Aeronautics and Space
PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
Subpart C—Strength Requirements
Ground Loads
§ 29.493 Braked roll conditions.