[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR27.171]

[Page 578]
 
                     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.  27.171  Stability: general.

    The rotorcraft must be able to be flown, without undue pilot fatigue 
or strain, in any normal maneuver for a period of time as long as that 
expected in normal operation. At least three landings and takeoffs must 
be made during this demonstration.