[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: 14CFR33.51]

[Page 744]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 33--AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES--Table of Contents
 
         Subpart D--Block Tests; Reciprocating Aircraft Engines
 
Sec. 33.51  Operation test.

    The operation test must include the testing found necessary by the 
Administrator to demonstrate backfire characteristics, starting, idling, 
acceleration, overspeeding, functioning of propeller and ignition, and 
any other operational characteristic of the engine. If the engine 
incorporates a multispeed supercharger drive, the design and 
construction must allow the supercharger to be shifted from operation at 
the lower speed ratio to the higher and the power appropriate to the 
manifold pressure and speed settings for rated maximum continuous power 
at the higher supercharger speed ratio must be obtainable within five 
seconds.

[Doc. No. 3025, 29 FR 7453, June 10, 1964, as amended by Amdt. 33-3, 32 
FR 3737, Mar. 4, 1967]