[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: 14CFR35.41]



[Page 810]

 

                     TITLE 14--AERONAUTICS AND SPACE

 

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

 

PART 35_AIRWORTHINESS STANDARDS: PROPELLERS--Table of Contents

 

                     Subpart C_Tests and Inspections

 

Sec. 35.41  Functional test.



    (a) Each variable-pitch propeller must be subjected to the 

applicable functional tests of this section. The same propeller used in 

the endurance test must be used in the functional tests and must be 

driven by an engine on a test stand or on an aircraft.

    (b) Manually controllable propellers. 500 complete cycles of control 

must be made throughout the pitch and rotational speed ranges.

    (c) Automatically controllable propellers. 1,500 complete cycles of 

control must be made throughout the pitch and rotational speed ranges.

    (d) Feathering propellers. 50 cycles of feathering operation must be 

made.

    (e) Reversible-pitch propellers. Two hundred complete cycles of 

control must be made from lowest normal pitch to maximum reverse pitch, 

and, while in maximum reverse pitch, during each cycle, the propeller 

must be run for 30 seconds at the maximum power and rotational speed 

selected by the applicant for maximum reverse pitch.



[Doc. No. 2095, 29 FR 7458, June 10, 1964, as amended by Amdt. 35-3, 41 

FR 55475, Dec. 20, 1976]