XFOIL Version 6.96 Calculated polar for: EPPLER 426 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 ------ -------- --------- --------- -------- -------- -------- -15.500 -1.0554 0.08334 0.07944 -0.0127 1.0000 0.0123 -15.250 -1.0988 0.07230 0.06827 -0.0192 1.0000 0.0122 -15.000 -1.1463 0.06015 0.05593 -0.0268 1.0000 0.0120 -14.750 -1.1823 0.04989 0.04544 -0.0339 1.0000 0.0119 -14.500 -1.2033 0.04273 0.03808 -0.0392 1.0000 0.0120 -14.250 -1.2166 0.03761 0.03279 -0.0427 1.0000 0.0120 -14.000 -1.2250 0.03401 0.02904 -0.0443 1.0000 0.0121 -13.750 -1.2309 0.03146 0.02635 -0.0442 1.0000 0.0122 -13.500 -1.2333 0.02971 0.02448 -0.0426 1.0000 0.0123 -13.250 -1.2326 0.02820 0.02287 -0.0405 1.0000 0.0125 -13.000 -1.2251 0.02675 0.02133 -0.0390 1.0000 0.0128 -12.750 -1.2132 0.02554 0.02003 -0.0379 1.0000 0.0131 -12.500 -1.1985 0.02448 0.01888 -0.0368 1.0000 0.0135 -12.250 -1.1818 0.02353 0.01783 -0.0358 1.0000 0.0140 -12.000 -1.1639 0.02265 0.01686 -0.0349 1.0000 0.0146 -11.750 -1.1447 0.02184 0.01596 -0.0341 1.0000 0.0151 -11.500 -1.1262 0.02089 0.01495 -0.0332 1.0000 0.0158 -11.250 -1.1060 0.02009 0.01409 -0.0324 1.0000 0.0166 -11.000 -1.0848 0.01939 0.01330 -0.0317 1.0000 0.0175 -10.750 -1.0631 0.01871 0.01255 -0.0309 1.0000 0.0185 -10.500 -1.0415 0.01799 0.01179 -0.0302 1.0000 0.0198 -10.250 -1.0188 0.01739 0.01114 -0.0295 1.0000 0.0213 -10.000 -0.9962 0.01677 0.01046 -0.0289 1.0000 0.0231 -9.750 -0.9730 0.01621 0.00986 -0.0282 1.0000 0.0254 -9.500 -0.9500 0.01561 0.00924 -0.0275 1.0000 0.0282 -9.250 -0.9266 0.01506 0.00866 -0.0268 1.0000 0.0316 -8.500 -0.8565 0.01337 0.00707 -0.0248 1.0000 0.0542 -8.250 -0.8318 0.01304 0.00675 -0.0242 1.0000 0.0631 -8.000 -0.8070 0.01273 0.00645 -0.0236 1.0000 0.0686 -7.750 -0.7817 0.01250 0.00618 -0.0230 1.0000 0.0728 -7.500 -0.7569 0.01220 0.00588 -0.0223 1.0000 0.0763 -7.250 -0.7320 0.01192 0.00560 -0.0217 1.0000 0.0801 -7.000 -0.7068 0.01170 0.00535 -0.0210 1.0000 0.0837 -6.750 -0.6819 0.01143 0.00508 -0.0203 1.0000 0.0874 -6.500 -0.6571 0.01117 0.00484 -0.0197 1.0000 0.0913 -6.250 -0.6320 0.01094 0.00460 -0.0190 1.0000 0.0942 -6.000 -0.6069 0.01074 0.00438 -0.0183 1.0000 0.0966 -5.750 -0.5821 0.01049 0.00416 -0.0176 1.0000 0.1010 -5.500 -0.5475 0.01027 0.00396 -0.0189 0.9956 0.1059 -5.250 -0.5128 0.01007 0.00376 -0.0203 0.9891 0.1100 -5.000 -0.4770 0.00985 0.00357 -0.0218 0.9816 0.1151 -4.500 -0.4075 0.00947 0.00322 -0.0244 0.9488 0.1268 -4.250 -0.3652 0.00930 0.00303 -0.0272 0.9236 0.1334 -4.000 -0.3290 0.00919 0.00284 -0.0286 0.8928 0.1387 -3.750 -0.3013 0.00915 0.00270 -0.0282 0.8533 0.1442 -3.500 -0.2759 0.00920 0.00257 -0.0272 0.8033 0.1488 -3.250 -0.2504 0.00924 0.00243 -0.0264 0.7604 0.1531 -3.000 -0.2242 0.00923 0.00231 -0.0258 0.7271 0.1583 -2.750 -0.1974 0.00923 0.00220 -0.0253 0.6962 0.1633 -2.500 -0.1705 0.00925 0.00209 -0.0248 0.6653 0.1676 -2.250 -0.1435 0.00921 0.00199 -0.0244 0.6389 0.1734 -2.000 -0.1160 0.00919 0.00191 -0.0241 0.6171 0.1793 -1.750 -0.0885 0.00917 0.00183 -0.0238 0.5957 0.1857 -1.500 -0.0611 0.00914 0.00176 -0.0235 0.5747 0.1942 -1.250 -0.0337 0.00911 0.00170 -0.0232 0.5523 0.2043 -1.000 -0.0063 0.00910 0.00164 -0.0230 0.5274 0.2165 -0.750 0.0210 0.00908 0.00159 -0.0227 0.5025 0.2322 -0.500 0.0481 0.00900 0.00155 -0.0224 0.4783 0.2611 -0.250 0.0749 0.00887 0.00151 -0.0222 0.4541 0.3092 0.000 0.1017 0.00876 0.00150 -0.0219 0.4274 0.3617 0.250 0.1285 0.00871 0.00152 -0.0216 0.3983 0.4127 0.500 0.1552 0.00872 0.00155 -0.0213 0.3646 0.4561 0.750 0.1820 0.00880 0.00160 -0.0210 0.3281 0.4905 1.000 0.2088 0.00892 0.00166 -0.0206 0.2948 0.5178 1.250 0.2358 0.00902 0.00174 -0.0203 0.2704 0.5446 1.500 0.2629 0.00908 0.00183 -0.0200 0.2533 0.5733 1.750 0.2899 0.00915 0.00193 -0.0197 0.2387 0.6038 2.000 0.3169 0.00923 0.00203 -0.0194 0.2259 0.6330 2.250 0.3441 0.00926 0.00213 -0.0190 0.2170 0.6619 2.500 0.3709 0.00930 0.00225 -0.0186 0.2100 0.6978 2.750 0.3976 0.00930 0.00237 -0.0181 0.2044 0.7339 3.000 0.4238 0.00932 0.00250 -0.0175 0.1979 0.7695 3.250 0.4494 0.00934 0.00263 -0.0167 0.1923 0.8096 3.500 0.4741 0.00930 0.00276 -0.0156 0.1879 0.8573 3.750 0.5008 0.00928 0.00289 -0.0148 0.1831 0.9257 4.000 0.5447 0.00943 0.00304 -0.0180 0.1772 0.9873 4.250 0.5761 0.00957 0.00317 -0.0186 0.1728 1.0000 4.500 0.6026 0.00973 0.00331 -0.0182 0.1681 1.0000 4.750 0.6291 0.00993 0.00347 -0.0178 0.1636 1.0000 5.000 0.6558 0.01010 0.00365 -0.0174 0.1597 1.0000 5.250 0.6827 0.01026 0.00381 -0.0170 0.1548 1.0000 5.500 0.7093 0.01047 0.00398 -0.0167 0.1498 1.0000 5.750 0.7359 0.01067 0.00418 -0.0163 0.1452 1.0000 6.000 0.7627 0.01085 0.00437 -0.0159 0.1396 1.0000 6.250 0.7890 0.01110 0.00457 -0.0155 0.1326 1.0000 6.500 0.8156 0.01130 0.00477 -0.0152 0.1249 1.0000 6.750 0.8418 0.01157 0.00500 -0.0148 0.1178 1.0000 7.000 0.8681 0.01183 0.00525 -0.0144 0.1116 1.0000 7.250 0.8939 0.01213 0.00552 -0.0140 0.1054 1.0000 7.500 0.9199 0.01242 0.00581 -0.0136 0.1000 1.0000 7.750 0.9453 0.01277 0.00613 -0.0131 0.0944 1.0000 8.000 0.9711 0.01306 0.00645 -0.0127 0.0895 1.0000 8.250 0.9961 0.01346 0.00681 -0.0122 0.0837 1.0000 8.500 1.0217 0.01376 0.00714 -0.0118 0.0791 1.0000 8.750 1.0465 0.01415 0.00753 -0.0113 0.0740 1.0000 9.000 1.0715 0.01451 0.00791 -0.0108 0.0697 1.0000 9.250 1.0961 0.01492 0.00831 -0.0103 0.0646 1.0000 9.500 1.1204 0.01534 0.00874 -0.0097 0.0598 1.0000 9.750 1.1441 0.01583 0.00922 -0.0092 0.0549 1.0000 10.000 1.1681 0.01627 0.00969 -0.0086 0.0509 1.0000 10.250 1.1910 0.01682 0.01023 -0.0079 0.0464 1.0000 10.500 1.2138 0.01735 0.01079 -0.0073 0.0422 1.0000 10.750 1.2360 0.01794 0.01138 -0.0065 0.0382 1.0000 11.000 1.2573 0.01859 0.01204 -0.0057 0.0344 1.0000 11.250 1.2790 0.01917 0.01266 -0.0050 0.0315 1.0000 11.500 1.2995 0.01985 0.01338 -0.0041 0.0283 1.0000 11.750 1.3189 0.02060 0.01415 -0.0031 0.0243 1.0000 12.000 1.3368 0.02146 0.01502 -0.0020 0.0184 1.0000 12.250 1.3501 0.02269 0.01623 -0.0006 0.0121 1.0000 12.500 1.3640 0.02377 0.01735 0.0009 0.0106 1.0000 12.750 1.3775 0.02477 0.01844 0.0024 0.0099 1.0000 13.000 1.3894 0.02580 0.01957 0.0040 0.0093 1.0000 13.250 1.3964 0.02688 0.02073 0.0064 0.0090 1.0000 13.500 1.4013 0.02801 0.02196 0.0087 0.0088 1.0000 13.750 1.4024 0.02948 0.02353 0.0109 0.0085 1.0000 14.000 1.4025 0.03118 0.02535 0.0126 0.0084 1.0000 14.250 1.3992 0.03341 0.02770 0.0136 0.0082 1.0000 14.500 1.3946 0.03612 0.03053 0.0137 0.0080 1.0000 14.750 1.3882 0.03942 0.03398 0.0131 0.0079 1.0000 15.000 1.3802 0.04332 0.03803 0.0116 0.0079 1.0000 15.250 1.3693 0.04803 0.04289 0.0093 0.0078 1.0000 15.500 1.3536 0.05384 0.04888 0.0061 0.0078 1.0000 15.750 1.3305 0.06123 0.05645 0.0018 0.0078 1.0000 16.000 1.2997 0.07033 0.06575 -0.0036 0.0078 1.0000 16.250 1.2628 0.08086 0.07647 -0.0097 0.0080 1.0000