Wind-tunnel research comparing lateral control devices, particularly at high angles of attack XII : upper-surface ailerons on wings with split flaps (1935)
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BBPOKT NATIONAL ADVISORY COMMITTEE FOE ABBONATJTICS 470 ment are about three times as great as those of ordi- deflections, is based on a control-stick movement of nary ailerons of corresponding sizes with equal up- ± 25° and is independent of air speed. This criterion and-down movement (split flaps… … Aileron deflection, degrees, SA Figure 8.—Hinge-moment coefficients of 0.16 c upper-surface aileron with spilt flap neutral, and wlth flap down. surface ailerons are about the same. (See part I, where F is the force applied at the end of the control reference 1.) These values are much too high for…
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