[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR31.45]

[Page 766]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 31_AIRWORTHINESS STANDARDS: MANNED FREE BALLOONS--Table of Contents
 
                      Subpart D_Design Construction
 
Sec.  31.45  Fuel cells.

    If fuel cells are used, the fuel cells, their attachments, and 
related supporting structure must be shown by tests to be capable of 
withstanding, without detrimental distortion or failure, any inertia 
loads to which the installation may be subjected, including the drop 
tests prescribed in Sec.  31.27(c). In the tests, the fuel cells must be 
loaded to the weight and pressure equivalent to the full fuel quantity 
condition.

[Amdt. 31-3, 41 FR 55474, Dec. 20, 1976]