Unsteady Lift Slope Values Obtained from Flight Measurements in Gusts
نویسنده
چکیده
SUINARY Flight measurements have been made of the unsteady lift due to gusts on a Meteor 7 aircraft. Values of the lift slope obtained from these measurements show a marked reduotion with increasing frequency, and in the range 1 to 5 cIp.a~, da(f) df =-0.2 per oppose; at 5 c.p.s. the value of the lift slope is reduced to three quarters of its steady state value, The main experimental errors inherent in the measurements are shown to be small over the frequency range considered and the experimental values of lift slope compare reasonably well with theory.
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