B1 General

• ED Decision 2003/18/RM found in: CS-VLA Amdt 1 - Very Light Aeroplanes (Mar 2009)

B1 General 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](#_DxCrossRefBm584936696) to [459](#_DxCrossRefBm584936664) unless the Agency finds that these values result in unrealistic loads. (b) In the control surface loading conditions of paragraph [B11](#_DxCrossRefBm584936706), 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)](#_DxCrossRefBm584936696). 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](#_DxCrossRefBm584936706) 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.