[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: 14CFR33.45]

[Page 777]
 
                     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.  33.45  Calibration tests.

    (a) Each engine must be subjected to the calibration tests necessary 
to establish its power characteristics and the conditions for the 
endurance test specified in Sec.  33.49. The results of the power 
characteristics calibration tests form the basis for establishing the 
characteristics of the engine over its entire operating range of 
crankshaft rotational speeds, manifold pressures, fuel/air mixture 
settings, and altitudes. Power ratings are based upon standard 
atmospheric conditions with only those accessories installed which are 
essential for engine functioning.
    (b) A power check at sea level conditions must be accomplished on 
the endurance test engine after the endurance test. Any change in power 
characteristics which occurs during the endurance test must be 
determined. Measurements taken during the final portion of the endurance 
test may be used in showing compliance with the requirements of this 
paragraph.

[Doc. No. 3025, 29 FR 7453, June 10, 1964, as amended by Amdt. 33-6, 39 
FR 35465, Oct. 1, 1974]