LIFT, DRAG, AND PITCHING MOMENT OF LOW-ASPECT-RATIO WINGS AT SUBSONIC AND SUPERSONIC SPEEDS - COMPARISON OF THREE WINGS OF ASPECT RATIO 2 OF RECTANGULAR, SWEPT-BACK, AND TRIANGULAR PLAN FORM, INCLUDING EFFECTS OF THICKNESS DISTRIBUTION

摘要

The aerodynamic characteristics of three wing-body combinations employing wings of aspect ratio 2, of rectangular, swept-back, and triangular plan form are compared at subsonic and supersonic speeds. All three wings had 3-percent-thick airfoil sections. The rectangular and swept-back wings were investigated with both biconvex and roundednose airfoil sections. The latter were obtained by replacing the portion of the biconvex sections forward of the midchord location with a semiellipse of minor axis equal to the airfoil maximum thickness. The triangular wing was composed of NACA 0003-63 airfoil sections.