[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR23.231]

[Page 195]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 23--AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER 
CATEGORY AIRPLANES--Table of Contents
 
                            Subpart B--Flight
 
Sec. 23.231  Longitudinal stability and control.

    (a) A landplane may have no uncontrollable tendency to nose over in 
any reasonably expected operating condition, including rebound during 
landing or takeoff. Wheel brakes must operate smoothly and may not 
induce any undue tendency to nose over.
    (b) A seaplane or amphibian may not have dangerous or uncontrollable 
porpoising characteristics at any normal operating speed on the water.

[[Page 196]]