[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: 14CFR29.87]



[Page 657]

 

                     TITLE 14--AERONAUTICS AND SPACE

 

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

 

PART 29_AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT--Table 

of Contents

 

                            Subpart B_Flight

 

Sec. 29.87  Height-velocity envelope.



    (a) If there is any combination of height and forward velocity 

(including hover) under which a safe landing cannot be made after 

failure of the critical engine and with the remaining engines (where 

applicable) operating within approved limits, a height-velocity envelope 

must be established for--

    (1) All combinations of pressure altitude and ambient temperature 

for which takeoff and landing are approved; and

    (2) Weight from the maximum weight (at sea level) to the highest 

weight approved for takeoff and landing at each altitude. For 

helicopters, this weight need not exceed the highest weight allowing 

hovering out-of-ground effect at each altitude.

    (b) For single-engine or multiengine rotorcraft that do not meet the 

Category A engine isolation requirements, the height-velocity envelope 

for complete power failure must be established.



[Doc. No. 24802, 61 FR 21901, May 10, 1996; 61 FR 33963, July 1, 1996]



                         Flight Characteristics