[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2005]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR121.185]

[Page 436]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 121_OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL 
OPERATIONS--Table of Contents
 
          Subpart I_Airplane Performance Operating Limitations
 
Sec. 121.185  Airplanes: Reciprocating engine-powered: Landing limitations: 
Destination airport.

    (a) Except as provided in paragraph (b) of this section no person 
operating a reciprocating engine powered airplane may take off that 
airplane, unless its weight on arrival, allowing for normal consumption 
of fuel and oil in flight, would allow a full stop landing at the 
intended destination within 60 percent of the effective length of each 
runway described below from a point 50 feet directly above the 
intersection of the obstruction clearance plane and the runway. For the 
purposes of determining the allowable landing weight at the destination 
airport the following is assumed:
    (1) The airplane is landed on the most favorable runway and in the 
most favorable direction in still air.
    (2) The airplane is landed on the most suitable runway considering 
the probable wind velocity and direction (forecast for the expected time 
of arrival), the ground handling characteristics of the type of 
airplane, and other conditions such as landing aids and terrain, and 
allowing for the effect of the landing path and roll of not more than 50 
percent of the headwind component or not less than 150 percent of the 
tailwind component.
    (b) An airplane that would be prohibited from being taken off 
because it could not meet the requirements of paragraph (a)(2) of this 
section may be taken off if an alternate airport is specified that meets 
all of the requirements of this section except that the airplane can 
accomplish a full stop landing within 70 percent of the effective length 
of the runway.
    (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; 30 FR 130, Jan. 7, 1965, as 
amended by Amdt. 121-251, 60 FR 65928, Dec. 20, 1995]