[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: 14CFR31.12]



[Page 760]

 

                     TITLE 14--AERONAUTICS AND SPACE

 

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

 

PART 31_AIRWORTHINESS STANDARDS: MANNED FREE BALLOONS--Table of Contents

 

                      Subpart B_Flight Requirements

 

Sec. 31.12  Proof of compliance.





    (a) Each requirement of this subpart must be met at each weight 

within the range of loading conditions for which certification is 

requested. This must be shown by--

    (1) Tests upon a balloon of the type for which certification is 

requested or by calculations based on, and equal in accuracy to, the 

results of testing; and

    (2) Systematic investigation of each weight if compliance cannot be 

reasonably inferred from the weights investigated.

    (b) Except as provided in Sec. 31.17(b), allowable weight 

tolerances during flight testing are +5 percent and -10 percent.



[Amdt. 31-4, 45 FR 60179, Sept. 11, 1980]



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