[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR25.113]

[Page 348-349]
 
                     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 equal to the takeoff distance. If the takeoff distance includes a 
clearway--

[[Page 349]]

    (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]