XFOIL Version 6.96 Calculated polar for: NREL's S827 Airfoil 1 1 Reynolds number fixed Mach number fixed xtrf = 1.000 (top) 1.000 (bottom) Mach = 0.000 Re = 1.000 e 6 Ncrit = 5.000 alpha CL CD CDp CM Top_Xtr Bot_Xtr ------ -------- --------- --------- -------- -------- -------- -13.750 -0.2802 0.06830 0.06547 -0.1275 0.7648 0.0021 -13.500 -0.3457 0.07015 0.06704 -0.1382 0.7724 0.0022 -13.250 -0.3846 0.06382 0.06059 -0.1375 0.7703 0.0021 -13.000 -0.4042 0.05969 0.05634 -0.1366 0.7681 0.0021 -12.750 -0.4315 0.05470 0.05119 -0.1346 0.7659 0.0020 -12.250 -0.4973 0.03453 0.02973 -0.1255 0.7627 0.0018 -12.000 -0.4800 0.03215 0.02698 -0.1245 0.7612 0.0018 -11.750 -0.4600 0.03101 0.02565 -0.1241 0.7597 0.0018 -11.500 -0.4381 0.03016 0.02464 -0.1236 0.7582 0.0018 -11.250 -0.4144 0.02957 0.02386 -0.1229 0.7567 0.0018 -11.000 -0.3947 0.02907 0.02329 -0.1225 0.7550 0.0018 -10.750 -0.3744 0.02866 0.02277 -0.1217 0.7535 0.0018 -10.500 -0.3554 0.02826 0.02229 -0.1210 0.7518 0.0018 -10.250 -0.3370 0.02783 0.02179 -0.1205 0.7503 0.0018 -10.000 -0.3198 0.02740 0.02130 -0.1196 0.7488 0.0018 -9.750 -0.3038 0.02692 0.02076 -0.1187 0.7474 0.0019 -9.500 -0.2865 0.02642 0.02024 -0.1181 0.7463 0.0018 -9.250 -0.2725 0.02583 0.01961 -0.1170 0.7450 0.0019 -9.000 -0.2583 0.02524 0.01899 -0.1161 0.7437 0.0019 -8.750 -0.2459 0.02457 0.01827 -0.1148 0.7424 0.0020 -8.500 -0.2331 0.02389 0.01756 -0.1137 0.7411 0.0021 -8.250 -0.2198 0.02324 0.01688 -0.1128 0.7397 0.0020 -8.000 -0.2073 0.02258 0.01619 -0.1116 0.7383 0.0020 -7.750 -0.1970 0.02183 0.01540 -0.1102 0.7370 0.0021 -7.500 -0.1850 0.02114 0.01468 -0.1091 0.7357 0.0021 -7.250 -0.1776 0.02027 0.01376 -0.1073 0.7344 0.0023 -7.000 -0.1707 0.01934 0.01281 -0.1055 0.7332 0.0030 -6.750 -0.1601 0.01855 0.01200 -0.1041 0.7324 0.0029 -6.500 -0.1509 0.01770 0.01113 -0.1026 0.7314 0.0039 -6.250 -0.1403 0.01693 0.01034 -0.1012 0.7304 0.0040 -6.000 -0.1326 0.01602 0.00943 -0.0994 0.7293 0.0055 -5.750 -0.1244 0.01516 0.00856 -0.0977 0.7283 0.0079 -5.500 -0.1150 0.01436 0.00775 -0.0960 0.7272 0.0102 -5.250 -0.1050 0.01363 0.00700 -0.0944 0.7262 0.0132 -5.000 -0.0992 0.01279 0.00617 -0.0921 0.7251 0.0199 -4.750 -0.0964 0.01209 0.00546 -0.0890 0.7240 0.0267 -4.500 -0.0944 0.01163 0.00499 -0.0853 0.7230 0.0359 -4.250 -0.0883 0.01101 0.00452 -0.0825 0.7220 0.0773 -4.000 -0.0758 0.01048 0.00412 -0.0807 0.7211 0.1296 -3.750 -0.0826 0.00873 0.00302 -0.0762 0.7198 0.3447 -3.500 -0.0708 0.00759 0.00241 -0.0745 0.7190 0.4977 -3.250 -0.0426 0.00756 0.00238 -0.0751 0.7184 0.5139 -3.000 -0.0141 0.00755 0.00238 -0.0757 0.7178 0.5238 -2.750 0.0149 0.00756 0.00236 -0.0765 0.7173 0.5280 -2.500 0.0434 0.00755 0.00236 -0.0772 0.7167 0.5339 -2.250 0.0725 0.00760 0.00238 -0.0779 0.7161 0.5391 -2.000 0.1015 0.00760 0.00235 -0.0787 0.7155 0.5399 -1.750 0.1304 0.00759 0.00232 -0.0794 0.7149 0.5404 -1.500 0.1593 0.00758 0.00229 -0.0801 0.7143 0.5408 -1.250 0.1882 0.00758 0.00227 -0.0809 0.7137 0.5412 -1.000 0.2171 0.00757 0.00225 -0.0816 0.7131 0.5417 -0.750 0.2459 0.00756 0.00224 -0.0824 0.7125 0.5425 -0.500 0.2746 0.00755 0.00223 -0.0831 0.7119 0.5433 -0.250 0.3034 0.00754 0.00223 -0.0838 0.7114 0.5440 0.000 0.3323 0.00754 0.00224 -0.0846 0.7108 0.5448 0.250 0.3611 0.00755 0.00225 -0.0853 0.7102 0.5455 0.500 0.3899 0.00756 0.00227 -0.0860 0.7096 0.5462 0.750 0.4188 0.00757 0.00229 -0.0868 0.7090 0.5470 1.000 0.4477 0.00758 0.00232 -0.0875 0.7083 0.5478 1.250 0.4768 0.00760 0.00235 -0.0883 0.7077 0.5486 1.500 0.5059 0.00763 0.00240 -0.0891 0.7072 0.5495 1.750 0.5352 0.00766 0.00245 -0.0900 0.7066 0.5505 2.000 0.5645 0.00770 0.00251 -0.0908 0.7060 0.5514 2.250 0.5938 0.00775 0.00258 -0.0917 0.7054 0.5523 2.500 0.6221 0.00777 0.00265 -0.0923 0.7050 0.5531 2.750 0.6503 0.00781 0.00273 -0.0929 0.7045 0.5539 3.000 0.6783 0.00784 0.00280 -0.0935 0.7039 0.5546 3.250 0.7062 0.00787 0.00288 -0.0941 0.7031 0.5553 3.500 0.7335 0.00789 0.00296 -0.0945 0.7018 0.5560 3.750 0.7576 0.00780 0.00292 -0.0941 0.6966 0.5571 4.000 0.7781 0.00771 0.00283 -0.0929 0.6874 0.5582 4.250 0.7958 0.00763 0.00277 -0.0911 0.6759 0.5592 4.500 0.8134 0.00762 0.00278 -0.0893 0.6643 0.5602 4.750 0.8304 0.00762 0.00283 -0.0875 0.6528 0.5613 5.000 0.8408 0.00767 0.00288 -0.0842 0.6370 0.5623 5.250 0.8366 0.00804 0.00311 -0.0780 0.5986 0.5633 5.500 0.8094 0.00910 0.00388 -0.0676 0.5412 0.5642 5.750 0.7862 0.01038 0.00490 -0.0587 0.4859 0.5651 6.000 0.7763 0.01150 0.00585 -0.0526 0.4445 0.5661 6.250 0.7577 0.01308 0.00717 -0.0454 0.3867 0.5671 6.500 0.7539 0.01428 0.00820 -0.0410 0.3464 0.5682 6.750 0.7502 0.01555 0.00928 -0.0367 0.3012 0.5691 7.250 0.7510 0.01794 0.01127 -0.0299 0.2132 0.5714 7.500 0.7579 0.01890 0.01210 -0.0275 0.1803 0.5727 7.750 0.7668 0.01982 0.01289 -0.0255 0.1508 0.5741 8.000 0.7761 0.02073 0.01368 -0.0236 0.1225 0.5754 8.250 0.7884 0.02152 0.01440 -0.0222 0.1001 0.5768 8.500 0.8004 0.02234 0.01515 -0.0207 0.0805 0.5782 8.750 0.8123 0.02320 0.01590 -0.0193 0.0601 0.5796 9.000 0.8266 0.02394 0.01659 -0.0182 0.0474 0.5811 9.250 0.8422 0.02463 0.01727 -0.0174 0.0392 0.5824 9.500 0.8572 0.02537 0.01798 -0.0164 0.0311 0.5837 9.750 0.8724 0.02610 0.01870 -0.0155 0.0240 0.5853 10.000 0.8864 0.02691 0.01948 -0.0145 0.0164 0.5870 10.250 0.9022 0.02764 0.02022 -0.0138 0.0139 0.5889 10.500 0.9174 0.02841 0.02099 -0.0130 0.0104 0.5909 10.750 0.9339 0.02911 0.02173 -0.0123 0.0092 0.5929 11.000 0.9496 0.02987 0.02251 -0.0117 0.0071 0.5951 11.250 0.9645 0.03070 0.02336 -0.0109 0.0057 0.5971 11.750 0.9947 0.03237 0.02510 -0.0096 0.0037 0.6016 12.000 1.0104 0.03318 0.02596 -0.0090 0.0032 0.6041 12.250 1.0246 0.03409 0.02692 -0.0083 0.0026 0.6066 12.500 1.0391 0.03501 0.02789 -0.0076 0.0023 0.6090 12.750 1.0530 0.03599 0.02891 -0.0070 0.0017 0.6114 13.000 1.0682 0.03688 0.02985 -0.0065 0.0018 0.6136 13.250 1.0815 0.03792 0.03096 -0.0058 0.0016 0.6164 13.500 1.0929 0.03913 0.03223 -0.0050 0.0012 0.6193 13.750 1.1061 0.04020 0.03337 -0.0044 0.0011 0.6222 14.000 1.1190 0.04133 0.03457 -0.0038 0.0010 0.6249 14.500 1.1429 0.04379 0.03719 -0.0027 0.0009 0.6308 14.750 1.1543 0.04510 0.03858 -0.0021 0.0009 0.6342 15.000 1.1650 0.04649 0.04005 -0.0015 0.0009 0.6375 15.250 1.1749 0.04797 0.04161 -0.0010 0.0008 0.6405 15.500 1.1857 0.04937 0.04309 -0.0005 0.0008 0.6439 15.750 1.1950 0.05095 0.04477 0.0000 0.0007 0.6479 16.000 1.2031 0.05269 0.04658 0.0004 0.0006 0.6521 16.250 1.2125 0.05432 0.04829 0.0008 0.0006 0.6558 16.500 1.2172 0.05645 0.05055 0.0013 0.0005 0.6597 16.750 1.2238 0.05844 0.05263 0.0016 0.0005 0.6641 17.000 1.2285 0.06065 0.05496 0.0020 0.0005 0.6682 17.250 1.2288 0.06343 0.05787 0.0024 0.0004 0.6716 17.500 1.2366 0.06540 0.05994 0.0023 0.0005 0.6761 17.750 1.2402 0.06790 0.06255 0.0023 0.0005 0.6805 18.000 1.2404 0.07089 0.06566 0.0023 0.0005 0.6844 18.250 1.2366 0.07445 0.06937 0.0022 0.0004 0.6881 18.500 1.2374 0.07749 0.07253 0.0017 0.0004 0.6927 18.750 1.2329 0.08134 0.07652 0.0012 0.0004 0.6968 19.000 1.2359 0.08426 0.07954 0.0005 0.0003 0.7013