[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: 14CFR27.471]



[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. 27.471  General.



    (a) Loads and equilibrium. For limit ground loads--

    (1) The limit ground loads obtained in the landing conditions in 

this part must be considered to be external loads that would occur in 

the rotorcraft structure if it were acting as a rigid body; and

    (2) In each specified landing condition, the external loads must be 

placed in equilibrium with linear and angular inertia loads in a 

rational or conservative manner.

    (b) Critical centers of gravity. The critical centers of gravity 

within the range for which certification is requested must be selected 

so that the maximum design loads are obtained in each landing gear 

element.