[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: 14CFR25.113]



[Page 354-355]

 

                     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. 25.113  Takeoff distance and takeoff run.



    (a) Takeoff distance on a dry runway is the greater of--

    (1) The horizontal distance along the takeoff path from the start of 

the takeoff to the point at which the airplane is 35 feet above the 

takeoff surface, determined under Sec. 25.111 for a dry runway; or

    (2) 115 percent of the horizontal distance along the takeoff path, 

with all engines operating, from the start of the takeoff to the point 

at which the airplane is 35 feet above the takeoff surface, as 

determined by a procedure consistent with Sec. 25.111.

    (b) Takeoff distance on a wet runway is the greater of--

    (1) The takeoff distance on a dry runway determined in accordance 

with paragraph (a) of this section; or

    (2) The horizontal distance along the takeoff path from the start of 

the takeoff to the point at which the airplane is 15 feet above the 

takeoff surface, achieved in a manner consistent with the achievement of 

V2 before reaching 35 feet above the takeoff surface, 

determined under Sec. 25.111 for a wet runway.

    (c) If the takeoff distance does not include a clearway, the takeoff 

run is



[[Page 355]]



equal to the takeoff distance. If the takeoff distance includes a 

clearway--

    (1) The takeoff run on a dry runway is the greater of--

    (i) The horizontal distance along the takeoff path from the start of 

the takeoff to a point equidistant between the point at which 

VLOF is reached and the point at which the airplane is 35 

feet above the takeoff surface, as determined under Sec. 25.111 for a 

dry runway; or

    (ii) 115 percent of the horizontal distance along the takeoff path, 

with all engines operating, from the start of the takeoff to a point 

equidistant between the point at which VLOF is reached and 

the point at which the airplane is 35 feet above the takeoff surface, 

determined by a procedure consistent with Sec. 25.111.

    (2) The takeoff run on a wet runway is the greater of--

    (i) The horizontal distance along the takeoff path from the start of 

the takeoff to the point at which the airplane is 15 feet above the 

takeoff surface, achieved in a manner consistent with the achievement of 

V2 before reaching 35 feet above the takeoff surface, as 

determined under Sec. 25.111 for a wet runway; or

    (ii) 115 percent of the horizontal distance along the takeoff path, 

with all engines operating, from the start of the takeoff to a point 

equidistant between the point at which VLOF is reached and 

the point at which the airplane is 35 feet above the takeoff surface, 

determined by a procedure consistent with Sec. 25.111.



[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-23, 

35 FR 5671, Apr. 8, 1970; Amdt. 25-92, 63 FR 8320, Feb. 18, 1998]