A Comparison Between the Theoretical and Measured Longitudinal Stability Characteristics of an Airplane (1934)
NASA Technical Reports Server (NTRS) · leaf 10
or changed calibration of acteristics in flight at the same altitude as that at the instruments were thereby eliminated. The effect which the previously mentioned tests were made. of lag in the angular-velocity recorder was eliminated These direct measurements were made both for the by a correction… … Figure G.—Typical records of air speed during oscillations introduced by the limitations of accuracy in determin- riatikms with time are necessarily the same, although ing angular accelerations by graphical differentiation tike variations may not be in phase with each other. of the angular-velocity…
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