1、REPORT No. 578FLIGHT MEASUREMENTS OF THE DYNAMIC LONGITUDINAL STABILITY OFSEVERAL AIRPLANES AND A CORRELATION OF THE MEASUREMENTS WITHPILOTS OBSERVATIONS OF HANDLING CE4RACTERISTICSBy HmrmY A. SoudSUMMARYThe dynamic .?onwdhd dabildy characttmdicsofeight airplmws m deed by the period and damping ofth
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