[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR121.177]

[Page 752-753]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 121_OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS--
 
          Subpart I_Airplane Performance Operating Limitations
 
Sec. 121.177  Airplanes: Reciprocating engine-powered: Takeoff limitations.

    (a) No person operating a reciprocating engine powered airplane may 
takeoff that airplane unless it is possible--
    (1) To stop the airplane safely on the runway, as shown by the 
accelerate stop distance data, at any time during takeoff until reaching 
critical-engine failure speed;
    (2) If the critical engine fails at any time after the airplane 
reaches critical-engine failure speed V1, to continue the 
takeoff and reach a height of 50 feet, as indicated by the takeoff path 
data, before passing over the end of the runway; and
    (3) To clear all obstacles either by at least 50 feet vertically (as 
shown by the takeoff path data) or 200 feet horizontally within the 
airport boundaries and 300 feet horizontally beyond the boundaries, 
without banking before reaching a height of 50 feet (as shown by the 
takeoff path data) and thereafter without banking more than 15 degrees.
    (b) In applying this section, corrections must be made for the 
effective runway gradient. To allow for wind effect, takeoff data based 
on still air may be corrected by taking into account not more than 50 
percent of any reported headwind component and not less than 150 percent 
of any reported tailwind component.

[[Page 753]]

    (c) This section does not apply to large nontransport category 
airplanes operated under Sec. 121.173(c).

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as amended by Amdt. 121-159, 
45 FR 41593, June 19, 1980; Amdt. 121-251, 60 FR 65928, Dec. 20, 1995]