? 1& iff Angle of attack Fig. 1. Fie. 2-Airf oils 376 and 441. Aspect ratios 5 and 10. Fig. 4- Airfoil 441. Fig.3-Airfoil 376. Aspect ratio 5. A-apect ratio 5. Figs. 1-2-3-4. I II i mum mi III
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