[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR27.473]

[Page 547]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 27--AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT--Table of Contents
 
                    Subpart C--Strength Requirements
 
Sec. 27.473  Ground loading conditions and assumptions.

    (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 
Sec. 27.725.

[Amdt. 27-2, 33 FR 963, Jan. 26, 1968]