[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: 14CFR23.61]



[Page 187-188]

 

                     TITLE 14--AERONAUTICS AND SPACE

 

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

 

PART 23_AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND 

COMMUTER CATEGORY AIRPLANES--Table of Contents

 

                            Subpart B_Flight

 

Sec. 23.61  Takeoff flight path.



    For each commuter category airplane, the takeoff flight path must be 

determined as follows:

    (a) The takeoff flight path begins 35 feet above the takeoff surface 

at the end of the takeoff distance determined in accordance with Sec. 

23.59.

    (b) The net takeoff flight path data must be determined so that they 

represent the actual takeoff flight paths, as determined in accordance 

with



[[Page 188]]



Sec. 23.57 and with paragraph (a) of this section, reduced at each 

point by a gradient of climb equal to--

    (1) 0.8 percent for two-engine airplanes;

    (2) 0.9 percent for three-engine airplanes; and

    (3) 1.0 percent for four-engine airplanes.

    (c) The prescribed reduction in climb gradient may be applied as an 

equivalent reduction in acceleration along that part of the takeoff 

flight path at which the airplane is accelerated in level flight.



[Amdt. 23-34, 52 FR 1827, Jan. 15, 1987]