Abstract: This paper summarizes the results of experimental research accomplished to determine the aerodynamic forces acting on the crewman arms. These experiments were conducted in the wind tunnels, on the rocket sled and by ejection from aircraft. The dislodgment forces on the arms were measured on 6 young men, a dummy, a 1 / 2 scale body model and a 1 / 10 scale body model over the range of Mach numbers from 0.086 to 2.04. By using these data collected from these experiments, computed the coefficients of the dislodgment forces on the arms were and the relationship between these coefficients and Mach numbers was obtained.

Key words: pilots, windblast, arm, ejection, aerodynamic characteristics