[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: 14CFR27.141]



[Page 574]

 

                     TITLE 14--AERONAUTICS AND SPACE

 

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

 

PART 27_AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT--Table 

of Contents

 

                            Subpart B_Flight

 

Sec. 27.141  General.



    The rotorcraft must--

    (a) Except as specifically required in the applicable section, meet 

the flight characteristics requirements of this subpart--

    (1) At the altitudes and temperatures expected in operation;

    (2) Under any critical loading condition within the range of weights 

and centers of gravity for which certification is requested;

    (3) For power-on operations, under any condition of speed, power, 

and rotor r.p.m. for which certification is requested; and

    (4) For power-off operations, under any condition of speed and rotor 

r.p.m. for which certification is requested that is attainable with the 

controls rigged in accordance with the approved rigging instructions and 

tolerances;

    (b) Be able to maintain any required flight condition and make a 

smooth transition from any flight condition to any other flight 

condition without exceptional piloting skill, alertness, or strength, 

and without danger of exceeding the limit load factor under any 

operating condition probable for the type, including--

    (1) Sudden failure of one engine, for multiengine rotorcraft meeting 

Transport Category A engine isolation requirements of Part 29 of this 

chapter;

    (2) Sudden, complete power failure for other rotorcraft; and

    (3) Sudden, complete control system failures specified in Sec. 

27.695 of this part; and

    (c) Have any additional characteristic required for night or 

instrument operation, if certification for those kinds of operation is 

requested. Requirements for helicopter instrument flight are contained 

in appendix B of this part.



[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-2, 33 

FR 962, Jan. 26, 1968; Amdt. 27-11, 41 FR 55468, Dec. 20, 1976; Amdt. 

27-19, 48 FR 4389, Jan. 31, 1983; Amdt. 27-21, 49 FR 44433, Nov. 6, 

1984]