14 C.F.R. § 27.473 Ground loading conditions and assumptions.
Title 14 - Aeronautics and Space
(a) For specified landing conditions, a design maximum weight must be used that is not less than the maximum weight. A rotor lift may be assumed to act through the center of gravity throughout the landing impact. This lift may not exceed two-thirds of the design maximum weight. (b) Unless otherwise prescribed, for each specified landing condition, the rotorcraft must be designed for a limit load factor of not less than the limit inertia load factor substantiated under §27.725. [Amdt. 27–2, 33 FR 963, Jan. 26, 1968]
Title 14: Aeronautics and Space
PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Subpart C—Strength Requirements
Ground Loans
§ 27.473 Ground loading conditions and assumptions.
