[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: 14CFR23.141] [Page 192] 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. 23.141 General. The airplane must meet the requirements of Sec. Sec. 23.143 through 23.253 at all practical loading conditions and operating altitudes for which certification has been requested, not exceeding the maximum operating altitude established under Sec. 23.1527, and without requiring exceptional piloting skill, alertness, or strength. [Doc. No. 26269, 58 FR 42156, Aug. 6, 1993] Controllability and Maneuverability