Drag Measurements at Transonic Speeds of NACA 65-009 Airfoils Mounted on a Freely Falling Body to Determine the Effects of Sweepback and Aspect Ratio

摘要

Drag measurements at transonic speeds of NACA 65-009 rectangular airfoils and airfoils swept-back 45 degrees mounted on a freely falling body to determine the effects of sweepback and aspect ratio are reported. Tests were made to compare the drag of rectangular and swept-back airfoils at a higher aspect ratio than had been used in a similar comparison reported previously.