[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: 14CFR23.157]



[Page 195-196]

 

                     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. 23.157  Rate of roll.



    (a) Takeoff. It must be possible, using a favorable combination of 

controls, to roll the airplane from a steady 30-degree banked turn 

through an angle of 60 degrees, so as to reverse the direction of the 

turn within:

    (1) For an airplane of 6,000 pounds or less maximum weight, 5 

seconds from initiation of roll; and

    (2) For an airplane of over 6,000 pounds maximum weight,



(W+500)/1,300





seconds, but not more than 10 seconds, where W is the weight in pounds.

    (b) The requirement of paragraph (a) of this section must be met 

when rolling the airplane in each direction with--

    (1) Flaps in the takeoff position;

    (2) Landing gear retracted;

    (3) For a single-engine airplane, at maximum takeoff power; and for 

a multiengine airplane with the critical engine inoperative and the 

propeller in the minimum drag position, and the other engines at maximum 

takeoff power; and

    (4) The airplane trimmed at a speed equal to the greater of 1.2 

VS1 or 1.1 VMC, or as nearly as possible in trim 

for straight flight.

    (c) Approach. It must be possible, using a favorable combination of 

controls, to roll the airplane from a steady 30-degree banked turn 

through an angle of 60 degrees, so as to reverse the direction of the 

turn within:

    (1) For an airplane of 6,000 pounds or less maximum weight, 4 

seconds from initiation of roll; and

    (2) For an airplane of over 6,000 pounds maximum weight,



(W+2,800)/2,200





[[Page 196]]







seconds, but not more than 7 seconds, where W is the weight in pounds.

    (d) The requirement of paragraph (c) of this section must be met 

when rolling the airplane in each direction in the following 

conditions--

    (1) Flaps in the landing position(s);

    (2) Landing gear extended;

    (3) All engines operating at the power for a 3 degree approach; and

    (4) The airplane trimmed at VREF.



[Amdt. 23-14, 38 FR 31819, Nov. 19, 1973, as amended by Amdt. 23-45, 58 

FR 42158, Aug. 6, 1993; Amdt. 23-50, 61 FR 5189, Feb. 9, 1996]



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