The control surfaces must be designed for the limit loads resulting from the flight conditions in §§
25.331, 25.341(a), 25.349 and 25.351 and the ground gust conditions in §
25.415, considering the requirements for --
(a) Loads parallel to hinge line, in §
25.393;
(b) Pilot effort effects, in §
25.397;
(c) Trim tab effects, in §
25.407;
(d) Unsymmetrical loads, in §
25.427; and
(e) Auxiliary aerodynamic surfaces, in §
25.445.
[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-86, 61 FR 5222, Feb. 9, 1996]