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A summary of recent large-scale research on high-lift devices

A brief summary of recent 40- by 80-foot wind-tunnel investigations of large-scale models equipped with various high-lift devices is presented. The basic high-lift concepts that were investigated were the externally blown flap, the augmentor wing, and the rotating-cylinder flap. The scope of this paper is limited to a discussion of the wind-tunnel results in terms of maximum lift, descent performance, and pitch trim requirements.

WING FLAP↗