ED Decision 2003/18/RM
(a) If allowed by the specific requirements in this CS-VLA, the values of control surface loading in this Appendix may be used to deter mine the detailed rational requirements of CS-VLA 397 to 459 unless the Agency finds that these values result in unrealistic loads.
(b) In the control surface loading conditions of paragraph B11, the airloads on the movable surfaces need not exceed those that could be obtained in flight by using the maximum limit pilot forces prescribed in CS-VLA 397(b). If the surface loads are limited by these maximum limit pilot forces, the tabs must be deflected -
(1) To their maximum travel in the direction that would assist the pilot; or
(2) In an amount corresponding to the greatest degree of out-of-trim expected at the speed for the condition being considered.
(c) For a seaplane version of a landplane the landplane wing loadings may be used to determine the limit manoeuvring control surface loadings (in accordance with paragraph B11 and figure B1 of this Appendix) if -
(1) The power of the seaplane engine does not exceed the power of the landplane engine;
(2) The placard manoeuvre speed of the seaplane does not exceed the placard manoeuvre speed of the landplane;
(3) The maximum weight of the seaplane does not exceed the maximum weight of the landplane by more than 10%;
(4) The landplane service experience does not show any serious control-surface load problem; and
(5) The landplane service experience is of sufficient scope to ascertain with reasonable accuracy that no serious controlsurface load problem will develop on the seaplane.
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