Controllability.

CFR · 2024-01-01 · US · Title 14

(a) The airplane must be controllable and maneuverable, without requiring exceptional piloting skill, alertness, or (1) At all loading conditions for which certification is requested; (2) During all phases of flight; (3) With likely reversible flight control or propulsion system failure; and (4) During configuration changes. (b) The airplane must be able to complete a landing without causing substantial damage or serious injury using the steepest approved approach gradient procedures and providing a reasonable margin below V (c) V (d) If the applicant requests certification of an airplane for aerobatics, the applicant must demonstrate those aerobatic maneuvers for which certification is requested and determine entry speeds.

official document · source cfr-2024 · id 14:§ 23.2135