XFOIL Version 6.96 Calculated polar for: NACA 2421 1 1 Reynolds number fixed Mach number fixed xtrf = 1.000 (top) 1.000 (bottom) Mach = 0.000 Re = 0.200 e 6 Ncrit = 5.000 alpha CL CD CDp CM Top_Xtr Bot_Xtr ------ -------- --------- --------- -------- -------- -------- -19.250 -0.9337 0.10200 0.09591 -0.0615 1.0000 0.0683 -19.000 -0.9466 0.09656 0.09034 -0.0643 1.0000 0.0693 -18.750 -0.9603 0.09107 0.08469 -0.0670 1.0000 0.0704 -18.500 -0.9683 0.08660 0.08012 -0.0691 1.0000 0.0714 -18.250 -0.9680 0.08350 0.07701 -0.0703 1.0000 0.0722 -18.000 -0.9707 0.07994 0.07341 -0.0719 1.0000 0.0732 -17.750 -0.9747 0.07622 0.06961 -0.0735 1.0000 0.0742 -17.500 -0.9790 0.07252 0.06583 -0.0750 1.0000 0.0753 -17.250 -0.9832 0.06890 0.06209 -0.0764 1.0000 0.0764 -17.000 -0.9869 0.06540 0.05845 -0.0777 1.0000 0.0776 -16.750 -0.9872 0.06254 0.05559 -0.0785 1.0000 0.0785 -16.500 -0.9882 0.05963 0.05265 -0.0793 1.0000 0.0796 -16.250 -0.9895 0.05674 0.04970 -0.0801 1.0000 0.0807 -16.000 -0.9903 0.05399 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0.7703 3.250 0.5427 0.01417 0.00649 -0.0340 0.4671 0.7898 3.500 0.5670 0.01429 0.00669 -0.0331 0.4587 0.8093 3.750 0.5909 0.01445 0.00687 -0.0321 0.4509 0.8288 4.000 0.6153 0.01463 0.00709 -0.0312 0.4435 0.8487 4.250 0.6397 0.01482 0.00732 -0.0303 0.4350 0.8695 4.500 0.6644 0.01507 0.00755 -0.0295 0.4274 0.8896 4.750 0.6907 0.01529 0.00781 -0.0290 0.4191 0.9076 5.000 0.7168 0.01555 0.00805 -0.0286 0.4109 0.9228 5.250 0.7475 0.01583 0.00832 -0.0292 0.4025 0.9342 5.500 0.7753 0.01611 0.00858 -0.0293 0.3935 0.9465 5.750 0.8061 0.01642 0.00886 -0.0301 0.3851 0.9567 6.000 0.8374 0.01674 0.00916 -0.0310 0.3754 0.9657 6.250 0.8680 0.01710 0.00947 -0.0319 0.3663 0.9750 6.500 0.9020 0.01746 0.00981 -0.0336 0.3558 0.9815 6.750 0.9343 0.01784 0.01016 -0.0350 0.3462 0.9889 7.000 0.9663 0.01822 0.01051 -0.0364 0.3359 0.9951 7.250 0.9901 0.01857 0.01084 -0.0362 0.3274 1.0000 7.500 0.9892 0.01874 0.01100 -0.0311 0.3206 1.0000 7.750 0.9898 0.01901 0.01121 -0.0264 0.3139 1.0000 8.000 0.9970 0.01928 0.01149 -0.0229 0.3067 1.0000 8.250 1.0044 0.01965 0.01183 -0.0196 0.2990 1.0000 8.500 1.0143 0.02007 0.01223 -0.0168 0.2915 1.0000 8.750 1.0259 0.02053 0.01269 -0.0145 0.2831 1.0000 9.000 1.0369 0.02109 0.01320 -0.0122 0.2755 1.0000 9.250 1.0499 0.02163 0.01375 -0.0103 0.2669 1.0000 9.500 1.0607 0.02231 0.01440 -0.0082 0.2593 1.0000 9.750 1.0739 0.02297 0.01505 -0.0065 0.2511 1.0000 10.000 1.0838 0.02380 0.01584 -0.0046 0.2438 1.0000 10.250 1.0965 0.02456 0.01661 -0.0031 0.2362 1.0000 10.500 1.1054 0.02555 0.01755 -0.0013 0.2292 1.0000 10.750 1.1176 0.02643 0.01845 0.0001 0.2223 1.0000 11.000 1.1269 0.02751 0.01950 0.0016 0.2157 1.0000 11.250 1.1375 0.02857 0.02057 0.0029 0.2099 1.0000 11.500 1.1481 0.02967 0.02169 0.0041 0.2039 1.0000 11.750 1.1555 0.03099 0.02299 0.0055 0.1986 1.0000 12.000 1.1672 0.03210 0.02415 0.0064 0.1932 1.0000 12.250 1.1760 0.03344 0.02551 0.0074 0.1877 1.0000 12.500 1.1829 0.03494 0.02701 0.0085 0.1830 1.0000 12.750 1.1933 0.03626 0.02839 0.0092 0.1776 1.0000 13.000 1.1999 0.03789 0.03004 0.0100 0.1725 1.0000 13.250 1.2070 0.03954 0.03172 0.0108 0.1679 1.0000 13.500 1.2147 0.04121 0.03344 0.0113 0.1627 1.0000 13.750 1.2187 0.04322 0.03546 0.0119 0.1582 1.0000 14.000 1.2257 0.04504 0.03733 0.0124 0.1535 1.0000 14.250 1.2303 0.04712 0.03945 0.0127 0.1488 1.0000 14.500 1.2326 0.04946 0.04181 0.0130 0.1448 1.0000 14.750 1.2381 0.05157 0.04398 0.0132 0.1403 1.0000 15.000 1.2400 0.05405 0.04650 0.0133 0.1362 1.0000 15.250 1.2418 0.05661 0.04909 0.0133 0.1325 1.0000 15.500 1.2446 0.05912 0.05167 0.0133 0.1284 1.0000 15.750 1.2443 0.06200 0.05457 0.0131 0.1249 1.0000 16.000 1.2452 0.06479 0.05742 0.0129 0.1215 1.0000 16.250 1.2461 0.06763 0.06033 0.0126 0.1179 1.0000 16.500 1.2443 0.07082 0.06354 0.0122 0.1148 1.0000 16.750 1.2437 0.07391 0.06668 0.0117 0.1118 1.0000 17.000 1.2436 0.07699 0.06984 0.0112 0.1086 1.0000 17.250 1.2409 0.08041 0.07330 0.0105 0.1057 1.0000 17.500 1.2384 0.08383 0.07676 0.0098 0.1032 1.0000 17.750 1.2380 0.08705 0.08007 0.0090 0.1003 1.0000 18.000 1.2349 0.09065 0.08373 0.0081 0.0976 1.0000 18.250 1.2307 0.09438 0.08747 0.0071 0.0954 1.0000 18.500 1.2299 0.09775 0.09094 0.0061 0.0928 1.0000 18.750 1.2269 0.10144 0.09470 0.0049 0.0903 1.0000 19.000 1.2235 0.10517 0.09846 0.0037 0.0882 1.0000