[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: 14CFR27.305]

[Page 544]
 
                     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. 27.305  Strength and deformation.

    (a) The structure must be able to support limit loads without 
detrimental or permanent deformation. At any load up to limit loads, the 
deformation may not interfere with safe operation.
    (b) The structure must be able to support ultimate loads without 
failure. This must be shown by--
    (1) Applying ultimate loads to the structure in a static test for at 
least three seconds; or
    (2) Dynamic tests simulating actual load application.