[Code of Federal Regulations]

[Title 14, Volume 1]

[Revised as of January 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 14CFR27.473]



[Page 580]

 

                     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]