[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: 14CFR25.231]

[Page 368]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 25_AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES--
Table of Contents
 
                            Subpart B_Flight
 
Sec.  25.231  Longitudinal stability and control.

    (a) Landplanes may have no uncontrollable tendency to nose over in 
any reasonably expected operating condition or when rebound occurs 
during landing or takeoff. In addition--
    (1) Wheel brakes must operate smoothly and may not cause any undue 
tendency to nose over; and
    (2) If a tail-wheel landing gear is used, it must be possible, 
during the takeoff ground run on concrete, to maintain any attitude up 
to thrust line level, at 75 percent of VSR1.
    (b) For seaplanes and amphibians, the most adverse water conditions 
safe for takeoff, taxiing, and landing, must be established.

[Docket No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-
108, 67 FR 70828, Nov. 26, 2002]