JUj I 1J..J., .L.^J ,...,_J.-L Cm 30 ^0 50 60 ?0 Cb 0 10 20 30 40 50 Fig.2. Polars of Joukowskl wings Nos. M-2Q-IJ-35. Aspect ratio of wings is 5. Parabola of induced drag dra-rri or "■■pryre oorrsspondo to this aspect ratio,
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