Arab Republic of Egypt ECAR Part 22
Ministry of Civil Aviation Appendix B
APPENDIX B
Control Surface Loadings
22.ab.1 General
(a) If allowed by the specific requirements in the Part 22 the values of control surface
loading in this Appendix may be used to determine the detailed rational requirements
of 22.397 to 459 unless the Authority finds that these values result in unrealistic
loads.
(b) In the control surface loading conditions of paragraph 22.bb.2, 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 22.397 (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 maneuvering control surface loadings if.
(1) The power of the seaplane engine does not exceed the power of the landplane
engine;
(2) The placard maneuver speed of the seaplane does nor exceed the placard
maneuver 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 control-surface load problem will develop
on the seaplane.
FI
Figure 22.ab.3
Up and down gust loading on horizontal tail surface
Issue1, Rev. 0 Date January, 2007 Page 1
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