Accession Number : AD0287536

Title :   MEASUREMENTS OF DYNAMIC STABILITY FROM THREE SIMPLIFIED FREE-FLIGHTMODELS OF A SUPERSONIC RESEARCH AIRCRAFT 'BRISTOL ER. 134< OVER THE MACH NUMBER RANGE 1.2 - 2.6

Corporate Author : ADVISORY GROUP FOR AERONAUTICAL RESEARCH AND DEVELOPMENT PARIS (FRANCE)

Personal Author(s) : TURNER, K.J.

Report Date : JUL 1961

Pagination or Media Count : 51

Abstract : Values of the lateral stability derivatives sideforce, yaw, damping,rolling moment due to sideslip, and roll amping, derivatives were measured on free-flight models of the Bristol ER. 134 for Mach numbers between 1.2 and 2.6. These show that the aircraft should be aterally stable up to M = 2.6, at least, although the free-flight results indicate a somewhat smaller stability margin than estimates or wind-tunnel measurements. Some additional data on lift force derivative and the pitching moment deivative were derived from the longitudinal motion. (Author)

Descriptors :   *AIRPLANE MODELS, *SUPERSONIC AIRCRAFT, AERODYNAMIC CHARACTERISTICS, CAMPHORS, DAMPING, FLIGHT TESTING, MODEL TESTS, MOMENTS, PITCH (MOTION), ROLL, SUPERSONIC FLOW, SYMPOSIA, YAW.

Distribution Statement : APPROVED FOR PUBLIC RELEASE