Cooperative Programme on Dynamic Wind Tunnel Experiments for Manoeuvring Aircraft(Programme en Cooperation sur L'Experimentation Dynamique en Soufflerie pour la Manoeuvrabilite de l'Avion)

摘要

This report describes a multinational cooperative programme set up by the AGARDFluid Dynamics Panel in response to the continuing interest among the NATO countries in dynamic wind tunnel testing. Such testing is essential for obtaining the aerodynamic information required to predict the behaviour of an aircraft performing angular motions. At low angles of attack this occurs primarily when the aircraft performs a small-amplitude oscillatory motion resulting from a disturbance or a control deflection. The dynamic stability can then be predicted by solving linear equations of motion in which the aerodynamic reactions are represented by the so called stability derivatives, obtainable from oscillatory experiments. At high angles of attack this occurs when the aircraft is involved in a spin, in which case rotary-balance data are required, or performs a rapid