XFOIL Version 6.96 Calculated polar for: EPPLER 551 AIRFOIL 1 1 Reynolds number fixed Mach number fixed xtrf = 1.000 (top) 1.000 (bottom) Mach = 0.000 Re = 0.500 e 6 Ncrit = 5.000 alpha CL CD CDp CM Top_Xtr Bot_Xtr ------ -------- --------- --------- -------- -------- -------- -18.250 -0.6690 0.12678 0.12357 -0.0445 1.0000 0.0040 -18.000 -0.6907 0.11814 0.11477 -0.0487 1.0000 0.0039 -17.750 -0.7081 0.11063 0.10714 -0.0524 1.0000 0.0039 -17.500 -0.7249 0.10351 0.09988 -0.0559 1.0000 0.0039 -17.250 -0.7386 0.09718 0.09344 -0.0589 1.0000 0.0040 -17.000 -0.7488 0.09167 0.08780 -0.0616 1.0000 0.0039 -16.750 -0.7587 0.08638 0.08241 -0.0640 1.0000 0.0040 -16.500 -0.7673 0.08152 0.07744 -0.0662 1.0000 0.0039 -16.250 -0.7754 0.07688 0.07269 -0.0681 1.0000 0.0040 -16.000 -0.7799 0.07294 0.06865 -0.0697 1.0000 0.0040 -15.750 -0.7849 0.06907 0.06468 -0.0711 1.0000 0.0039 -15.500 -0.7896 0.06538 0.06090 -0.0724 1.0000 0.0040 -15.250 -0.7901 0.06229 0.05775 -0.0734 1.0000 0.0041 -15.000 -0.7936 0.05901 0.05438 -0.0742 1.0000 0.0041 -14.750 -0.7946 0.05615 0.05142 -0.0749 1.0000 0.0041 -14.500 -0.7955 0.05337 0.04858 -0.0754 1.0000 0.0043 -14.250 -0.7951 0.05088 0.04602 -0.0756 1.0000 0.0043 -14.000 -0.7944 0.04852 0.04360 -0.0758 1.0000 0.0044 -13.750 -0.7945 0.04623 0.04124 -0.0756 1.0000 0.0043 -13.500 -0.7935 0.04417 0.03912 -0.0754 1.0000 0.0045 -13.250 -0.7931 0.04215 0.03702 -0.0749 1.0000 0.0046 -13.000 -0.7924 0.04025 0.03507 -0.0743 1.0000 0.0045 -12.750 -0.7904 0.03838 0.03315 -0.0738 0.9998 0.0046 -12.500 -0.7702 0.03616 0.03084 -0.0770 0.9961 0.0048 -12.250 -0.7589 0.03417 0.02879 -0.0780 0.9819 0.0049 -12.000 -0.7421 0.03229 0.02683 -0.0800 0.9631 0.0050 -11.750 -0.7127 0.03032 0.02475 -0.0845 0.9502 0.0052 -11.500 -0.6754 0.02820 0.02252 -0.0909 0.9396 0.0055 -11.250 -0.6307 0.02617 0.02039 -0.0986 0.9273 0.0057 -11.000 -0.5877 0.02455 0.01864 -0.1052 0.9097 0.0061 -10.750 -0.5592 0.02325 0.01719 -0.1084 0.8866 0.0065 -10.500 -0.5440 0.02212 0.01591 -0.1088 0.8650 0.0069 -10.250 -0.5337 0.02108 0.01473 -0.1082 0.8465 0.0069 -10.000 -0.5252 0.02006 0.01360 -0.1070 0.8313 0.0075 -9.750 -0.5179 0.01907 0.01251 -0.1056 0.8172 0.0077 -9.500 -0.5124 0.01815 0.01149 -0.1038 0.8044 0.0080 -9.250 -0.5095 0.01744 0.01066 -0.1011 0.7925 0.0085 -9.000 -0.4973 0.01689 0.01003 -0.0994 0.7822 0.0093 -8.750 -0.4834 0.01635 0.00941 -0.0979 0.7729 0.0100 -8.500 -0.4666 0.01586 0.00886 -0.0968 0.7637 0.0117 -8.250 -0.4490 0.01538 0.00832 -0.0957 0.7555 0.0134 -8.000 -0.4301 0.01492 0.00782 -0.0948 0.7468 0.0164 -7.750 -0.4100 0.01450 0.00736 -0.0940 0.7393 0.0203 -7.500 -0.3888 0.01408 0.00692 -0.0934 0.7316 0.0257 -7.250 -0.3676 0.01366 0.00648 -0.0928 0.7243 0.0337 -7.000 -0.3450 0.01326 0.00609 -0.0923 0.7169 0.0427 -6.750 -0.3226 0.01287 0.00569 -0.0919 0.7095 0.0556 -6.500 -0.2996 0.01242 0.00531 -0.0915 0.7028 0.0744 -6.250 -0.2771 0.01190 0.00488 -0.0912 0.6960 0.1050 -6.000 -0.2552 0.01125 0.00441 -0.0908 0.6898 0.1536 -5.750 -0.2340 0.01040 0.00385 -0.0906 0.6829 0.2283 -5.500 -0.2137 0.00942 0.00330 -0.0903 0.6764 0.3426 -5.250 -0.1870 0.00922 0.00320 -0.0903 0.6700 0.3878 -5.000 -0.1592 0.00917 0.00313 -0.0904 0.6636 0.4072 -4.750 -0.1314 0.00917 0.00307 -0.0904 0.6581 0.4208 -4.500 -0.1029 0.00916 0.00300 -0.0906 0.6521 0.4308 -4.250 -0.0749 0.00918 0.00297 -0.0907 0.6459 0.4410 -4.000 -0.0468 0.00923 0.00298 -0.0908 0.6401 0.4528 -3.750 -0.0184 0.00929 0.00297 -0.0909 0.6340 0.4621 -3.500 0.0096 0.00928 0.00291 -0.0910 0.6284 0.4651 -3.250 0.0380 0.00927 0.00284 -0.0912 0.6234 0.4671 -3.000 0.0664 0.00926 0.00278 -0.0913 0.6178 0.4693 -2.750 0.0945 0.00927 0.00271 -0.0914 0.6123 0.4715 -2.500 0.1229 0.00927 0.00265 -0.0916 0.6071 0.4735 -2.250 0.1513 0.00927 0.00260 -0.0918 0.6016 0.4753 -2.000 0.1795 0.00929 0.00255 -0.0919 0.5967 0.4770 -1.750 0.2075 0.00928 0.00252 -0.0920 0.5922 0.4790 -1.500 0.2359 0.00928 0.00250 -0.0922 0.5873 0.4811 -1.250 0.2640 0.00929 0.00249 -0.0923 0.5821 0.4832 -0.750 0.3203 0.00934 0.00247 -0.0926 0.5730 0.4872 -0.500 0.3485 0.00936 0.00247 -0.0928 0.5684 0.4893 -0.250 0.3765 0.00940 0.00247 -0.0929 0.5639 0.4913 0.000 0.4045 0.00945 0.00248 -0.0930 0.5596 0.4932 0.250 0.4326 0.00946 0.00250 -0.0931 0.5551 0.4955 0.500 0.4605 0.00949 0.00254 -0.0932 0.5508 0.4979 0.750 0.4881 0.00954 0.00257 -0.0933 0.5466 0.5002 1.000 0.5161 0.00958 0.00261 -0.0934 0.5427 0.5026 1.250 0.5441 0.00962 0.00266 -0.0935 0.5383 0.5050 1.500 0.5719 0.00968 0.00271 -0.0936 0.5341 0.5074 1.750 0.5993 0.00975 0.00276 -0.0937 0.5300 0.5097 2.000 0.6270 0.00980 0.00282 -0.0937 0.5261 0.5120 2.250 0.6547 0.00984 0.00290 -0.0938 0.5220 0.5146 2.500 0.6821 0.00990 0.00298 -0.0938 0.5176 0.5176 2.750 0.7090 0.00999 0.00306 -0.0938 0.5134 0.5208 3.000 0.7365 0.01005 0.00316 -0.0938 0.5093 0.5239 3.250 0.7638 0.01012 0.00324 -0.0939 0.5045 0.5267 3.500 0.7904 0.01020 0.00334 -0.0937 0.4995 0.5295 3.750 0.8169 0.01029 0.00345 -0.0936 0.4949 0.5326 4.000 0.8439 0.01035 0.00357 -0.0936 0.4896 0.5360 4.250 0.8701 0.01045 0.00369 -0.0934 0.4840 0.5396 4.500 0.8960 0.01057 0.00381 -0.0932 0.4788 0.5430 4.750 0.9225 0.01064 0.00394 -0.0931 0.4732 0.5468 5.000 0.9480 0.01075 0.00409 -0.0928 0.4675 0.5510 5.250 0.9735 0.01087 0.00424 -0.0925 0.4618 0.5556 5.500 0.9991 0.01098 0.00439 -0.0922 0.4551 0.5600 5.750 1.0229 0.01113 0.00456 -0.0916 0.4481 0.5642 6.000 1.0482 0.01123 0.00473 -0.0913 0.4405 0.5690 6.250 1.0712 0.01140 0.00491 -0.0905 0.4327 0.5741 6.500 1.0955 0.01154 0.00510 -0.0900 0.4238 0.5790 6.750 1.1175 0.01172 0.00532 -0.0891 0.4143 0.5845 7.000 1.1389 0.01192 0.00554 -0.0881 0.4026 0.5907 7.250 1.1596 0.01214 0.00579 -0.0870 0.3899 0.5970 7.500 1.1778 0.01239 0.00605 -0.0854 0.3760 0.6040 7.750 1.1925 0.01270 0.00634 -0.0832 0.3596 0.6110 8.000 1.2050 0.01310 0.00672 -0.0806 0.3412 0.6180 8.250 1.2157 0.01361 0.00718 -0.0778 0.3206 0.6257 8.500 1.2252 0.01419 0.00771 -0.0750 0.2987 0.6333 8.750 1.2321 0.01489 0.00835 -0.0718 0.2771 0.6419 9.000 1.2393 0.01562 0.00903 -0.0688 0.2563 0.6508 9.250 1.2454 0.01642 0.00979 -0.0659 0.2365 0.6611 9.500 1.2515 0.01726 0.01062 -0.0631 0.2193 0.6722 9.750 1.2557 0.01824 0.01157 -0.0602 0.2015 0.6843 10.000 1.2607 0.01925 0.01258 -0.0576 0.1860 0.6988 10.250 1.2647 0.02037 0.01369 -0.0550 0.1705 0.7145 10.500 1.2695 0.02151 0.01486 -0.0527 0.1570 0.7324 10.750 1.2741 0.02270 0.01611 -0.0505 0.1445 0.7538 11.000 1.2782 0.02396 0.01743 -0.0484 0.1329 0.7811 11.250 1.2811 0.02525 0.01884 -0.0462 0.1224 0.8236 11.500 1.2875 0.02652 0.02033 -0.0449 0.1124 1.0000 11.750 1.2909 0.02822 0.02200 -0.0434 0.1022 1.0000 12.000 1.2956 0.02988 0.02366 -0.0421 0.0930 1.0000 12.250 1.2986 0.03171 0.02548 -0.0409 0.0843 1.0000 12.500 1.3014 0.03365 0.02740 -0.0398 0.0768 1.0000 12.750 1.3048 0.03559 0.02935 -0.0388 0.0694 1.0000 13.000 1.3087 0.03755 0.03133 -0.0379 0.0636 1.0000 13.250 1.3112 0.03971 0.03348 -0.0372 0.0579 1.0000 13.500 1.3152 0.04179 0.03560 -0.0365 0.0528 1.0000 13.750 1.3175 0.04410 0.03792 -0.0360 0.0480 1.0000 14.000 1.3210 0.04634 0.04019 -0.0356 0.0438 1.0000 14.250 1.3235 0.04875 0.04262 -0.0352 0.0399 1.0000 14.500 1.3263 0.05120 0.04510 -0.0350 0.0363 1.0000 14.750 1.3290 0.05371 0.04765 -0.0348 0.0333 1.0000 15.000 1.3312 0.05632 0.05030 -0.0348 0.0305 1.0000 15.250 1.3340 0.05893 0.05294 -0.0348 0.0279 1.0000 15.750 1.3375 0.06455 0.05866 -0.0352 0.0233 1.0000 16.000 1.3392 0.06744 0.06160 -0.0355 0.0213 1.0000 16.250 1.3408 0.07042 0.06464 -0.0359 0.0198 1.0000 16.500 1.3422 0.07348 0.06775 -0.0364 0.0180 1.0000 16.750 1.3428 0.07668 0.07101 -0.0369 0.0169 1.0000 17.000 1.3444 0.07980 0.07421 -0.0376 0.0158 1.0000 17.250 1.3450 0.08311 0.07758 -0.0384 0.0147 1.0000 17.500 1.3445 0.08663 0.08117 -0.0393 0.0137 1.0000 17.750 1.3448 0.09010 0.08472 -0.0402 0.0126 1.0000 18.000 1.3446 0.09366 0.08836 -0.0413 0.0119 1.0000 18.250 1.3428 0.09752 0.09229 -0.0425 0.0112 1.0000 18.500 1.3425 0.10121 0.09606 -0.0438 0.0103 1.0000 18.750 1.3414 0.10505 0.09998 -0.0451 0.0098 1.0000 19.000 1.3384 0.10925 0.10426 -0.0468 0.0092 1.0000 19.250 1.3367 0.11326 0.10836 -0.0484 0.0087 1.0000