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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ilerons 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 lever of length I, and SjJ25 is the gear ratio between practical operation, and an investigation of methods for the aileron and the control lever.… … Aileron deflection, degrees, 6A Figure 9.—Hinge-moment coefficients of 0.25 c upper-surface aileron with split flap neutral, and with flap down. with split flaps both neutral and deflected for maxi- One possible method of reducing the control force mum lift, and for the two corresponding sizes of…
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