Application of circulation control to advanced subsonic transport aircraft. I - Airfoil development. II - Transport application

Attention is given to experimental development and evaluation of advanced circulation control wing (CCW) high-lift configurations, development of effective pneumatic leading-edge devices, and computational evaluation of CCW airfoil designs plus high-lift and cruise capabilities. Applications to the high-lift and control systems of advanced subsonic transport aircraft and resulting performance are discussed. Experimental lift coefficient values approaching 8.0 at zero incidence and low blowing rates are demonstrated by 2D CCW configurations that promised minimal degradation of the airfoil's performance during cruise. (AIAA)