[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: 14CFR25.115]



[Page 355]

 

                     TITLE 14--AERONAUTICS AND SPACE

 

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

 

PART 25_AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES--Table 

of Contents

 

                            Subpart B_Flight

 

Sec. 25.115  Takeoff flight path.



    (a) The takeoff flight path shall be considered to begin 35 feet 

above the takeoff surface at the end of the takeoff distance determined 

in accordance with Sec. 25.113(a) or (b), as appropriate for the runway 

surface condition.

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

represent the actual takeoff flight paths (determined in accordance with 

Sec. 25.111 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.



[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-92, 

63 FR 8320, Feb. 18, 1998]