XFOIL Version 6.96 Calculated polar for: EPPLER 520 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 = 9.000 alpha CL CD CDp CM Top_Xtr Bot_Xtr ------ -------- --------- --------- -------- -------- -------- -19.500 -0.9219 0.15887 0.15619 0.0258 1.0000 0.0069 -19.250 -0.9405 0.14937 0.14655 0.0201 1.0000 0.0069 -19.000 -0.9574 0.14059 0.13762 0.0148 1.0000 0.0070 -18.750 -0.9704 0.13305 0.12995 0.0103 1.0000 0.0070 -18.500 -0.9833 0.12574 0.12251 0.0060 1.0000 0.0070 -18.250 -0.9952 0.11879 0.11544 0.0020 1.0000 0.0070 -18.000 -1.0080 0.11181 0.10832 -0.0020 1.0000 0.0070 -17.750 -1.0183 0.10548 0.10185 -0.0055 1.0000 0.0070 -17.500 -1.0278 0.09940 0.09565 -0.0089 1.0000 0.0071 -17.250 -1.0389 0.09328 0.08939 -0.0121 1.0000 0.0071 -17.000 -1.0471 0.08778 0.08376 -0.0150 1.0000 0.0072 -16.750 -1.0556 0.08242 0.07827 -0.0176 1.0000 0.0072 -16.500 -1.0623 0.07737 0.07307 -0.0201 1.0000 0.0075 -16.250 -1.0715 0.07229 0.06787 -0.0223 1.0000 0.0075 -16.000 -1.0873 0.06652 0.06198 -0.0246 1.0000 0.0079 -15.750 -1.0933 0.06223 0.05756 -0.0262 1.0000 0.0079 -15.500 -1.0976 0.05834 0.05357 -0.0276 1.0000 0.0080 -15.250 -1.1024 0.05456 0.04967 -0.0287 1.0000 0.0080 -15.000 -1.1006 0.05168 0.04674 -0.0296 1.0000 0.0086 -14.750 -1.1029 0.04849 0.04345 -0.0301 1.0000 0.0087 -14.500 -1.1026 0.04575 0.04062 -0.0305 1.0000 0.0090 -14.250 -1.1025 0.04313 0.03790 -0.0305 1.0000 0.0093 -14.000 -1.0962 0.04119 0.03586 -0.0305 1.0000 0.0100 -13.750 -1.0915 0.03916 0.03372 -0.0303 1.0000 0.0103 -13.500 -1.0971 0.03630 0.03077 -0.0297 1.0000 0.0107 -13.250 -1.0987 0.03391 0.02833 -0.0290 1.0000 0.0115 -13.000 -1.0917 0.03231 0.02667 -0.0284 1.0000 0.0121 -12.750 -1.0849 0.03073 0.02503 -0.0277 1.0000 0.0129 -12.500 -1.0744 0.02946 0.02366 -0.0270 1.0000 0.0138 -12.250 -1.0744 0.02742 0.02156 -0.0257 1.0000 0.0151 -12.000 -1.0657 0.02609 0.02021 -0.0248 1.0000 0.0164 -11.750 -1.0525 0.02511 0.01919 -0.0241 1.0000 0.0179 -11.500 -1.0411 0.02399 0.01803 -0.0233 1.0000 0.0196 -11.250 -1.0327 0.02268 0.01673 -0.0223 1.0000 0.0215 -11.000 -1.0058 0.02178 0.01575 -0.0241 0.9368 0.0240 -10.750 -0.9924 0.02090 0.01467 -0.0232 0.8925 0.0263 -10.500 -0.9850 0.02004 0.01373 -0.0211 0.8741 0.0291 -10.250 -0.9729 0.01942 0.01298 -0.0193 0.8628 0.0316 -10.000 -0.9636 0.01865 0.01211 -0.0172 0.8539 0.0348 -9.750 -0.9541 0.01792 0.01137 -0.0150 0.8468 0.0392 -9.500 -0.9415 0.01740 0.01078 -0.0129 0.8404 0.0434 -9.250 -0.9308 0.01679 0.01016 -0.0106 0.8350 0.0502 -9.000 -0.9149 0.01619 0.00957 -0.0091 0.8299 0.0586 -8.750 -0.8975 0.01565 0.00904 -0.0078 0.8255 0.0688 -8.500 -0.8793 0.01515 0.00855 -0.0066 0.8217 0.0805 -8.250 -0.8599 0.01463 0.00806 -0.0057 0.8178 0.0943 -8.000 -0.8399 0.01412 0.00761 -0.0048 0.8138 0.1097 -7.750 -0.8192 0.01365 0.00720 -0.0039 0.8103 0.1273 -7.250 -0.7761 0.01277 0.00644 -0.0025 0.8042 0.1675 -7.000 -0.7537 0.01233 0.00608 -0.0020 0.8007 0.1911 -6.750 -0.7311 0.01189 0.00573 -0.0015 0.7975 0.2179 -6.500 -0.7087 0.01144 0.00540 -0.0009 0.7947 0.2485 -6.250 -0.6858 0.01105 0.00510 -0.0003 0.7920 0.2793 -6.000 -0.6621 0.01063 0.00482 0.0000 0.7891 0.3119 -5.750 -0.6381 0.01023 0.00454 0.0004 0.7861 0.3469 -5.500 -0.6137 0.00987 0.00429 0.0007 0.7832 0.3815 -5.250 -0.5890 0.00954 0.00407 0.0010 0.7804 0.4153 -5.000 -0.5641 0.00925 0.00387 0.0013 0.7779 0.4501 -4.750 -0.5385 0.00899 0.00371 0.0016 0.7753 0.4840 -4.500 -0.5122 0.00876 0.00359 0.0017 0.7723 0.5149 -4.250 -0.4855 0.00859 0.00351 0.0018 0.7693 0.5436 -4.000 -0.4583 0.00849 0.00344 0.0019 0.7665 0.5685 -3.750 -0.4307 0.00845 0.00341 0.0019 0.7638 0.5883 -3.500 -0.4027 0.00845 0.00341 0.0019 0.7610 0.6050 -3.250 -0.3742 0.00844 0.00342 0.0018 0.7576 0.6193 -3.000 -0.3456 0.00845 0.00341 0.0016 0.7543 0.6316 -2.750 -0.3171 0.00849 0.00341 0.0015 0.7512 0.6426 -2.500 -0.2885 0.00854 0.00345 0.0015 0.7485 0.6513 -2.250 -0.2597 0.00860 0.00346 0.0013 0.7454 0.6599 -2.000 -0.2308 0.00863 0.00352 0.0011 0.7417 0.6670 -1.750 -0.2020 0.00867 0.00351 0.0010 0.7381 0.6743 -1.500 -0.1732 0.00871 0.00355 0.0009 0.7349 0.6800 -1.250 -0.1444 0.00879 0.00357 0.0008 0.7317 0.6868 -1.000 -0.1155 0.00879 0.00361 0.0006 0.7275 0.6916 -0.750 -0.0866 0.00882 0.00364 0.0004 0.7235 0.6969 -0.500 -0.0577 0.00885 0.00360 0.0003 0.7199 0.7025 -0.250 -0.0289 0.00886 0.00364 0.0002 0.7162 0.7065 0.000 0.0000 0.00886 0.00368 0.0000 0.7113 0.7111 0.250 0.0290 0.00887 0.00365 -0.0002 0.7068 0.7161 0.500 0.0577 0.00886 0.00361 -0.0003 0.7026 0.7199 0.750 0.0866 0.00881 0.00363 -0.0004 0.6966 0.7235 1.000 0.1155 0.00879 0.00360 -0.0006 0.6913 0.7276 1.250 0.1445 0.00879 0.00357 -0.0008 0.6865 0.7318 1.500 0.1733 0.00871 0.00355 -0.0009 0.6800 0.7349 1.750 0.2020 0.00867 0.00352 -0.0010 0.6743 0.7382 2.000 0.2309 0.00863 0.00352 -0.0012 0.6670 0.7417 2.250 0.2598 0.00860 0.00346 -0.0013 0.6599 0.7454 2.500 0.2886 0.00854 0.00344 -0.0015 0.6512 0.7485 2.750 0.3171 0.00849 0.00341 -0.0016 0.6427 0.7513 3.000 0.3457 0.00845 0.00341 -0.0017 0.6317 0.7543 3.250 0.3743 0.00844 0.00342 -0.0018 0.6194 0.7577 3.500 0.4028 0.00845 0.00341 -0.0019 0.6050 0.7610 3.750 0.4308 0.00845 0.00341 -0.0020 0.5884 0.7638 4.000 0.4584 0.00849 0.00345 -0.0019 0.5686 0.7665 4.250 0.4856 0.00859 0.00351 -0.0018 0.5436 0.7693 4.500 0.5123 0.00876 0.00359 -0.0017 0.5150 0.7724 4.750 0.5385 0.00899 0.00371 -0.0016 0.4838 0.7753 5.000 0.5642 0.00925 0.00387 -0.0014 0.4501 0.7779 5.250 0.5891 0.00954 0.00407 -0.0011 0.4149 0.7804 5.500 0.6139 0.00987 0.00429 -0.0007 0.3815 0.7832 5.750 0.6382 0.01024 0.00454 -0.0004 0.3467 0.7861 6.000 0.6622 0.01064 0.00482 -0.0001 0.3113 0.7891 6.250 0.6859 0.01105 0.00510 0.0003 0.2789 0.7921 6.500 0.7089 0.01145 0.00541 0.0008 0.2481 0.7947 6.750 0.7314 0.01190 0.00574 0.0014 0.2179 0.7975 7.000 0.7541 0.01232 0.00607 0.0019 0.1913 0.8007 7.250 0.7765 0.01277 0.00644 0.0025 0.1673 0.8041 7.750 0.8197 0.01366 0.00720 0.0039 0.1273 0.8103 8.000 0.8404 0.01412 0.00762 0.0047 0.1098 0.8138 8.250 0.8604 0.01463 0.00806 0.0056 0.0941 0.8178 8.500 0.8799 0.01516 0.00855 0.0065 0.0804 0.8217 8.750 0.8981 0.01566 0.00904 0.0077 0.0686 0.8255 9.000 0.9156 0.01619 0.00957 0.0090 0.0585 0.8298 9.250 0.9316 0.01679 0.01016 0.0104 0.0501 0.8349 9.500 0.9425 0.01741 0.01079 0.0127 0.0432 0.8403 9.750 0.9553 0.01792 0.01137 0.0148 0.0389 0.8467 10.000 0.9648 0.01864 0.01210 0.0170 0.0345 0.8537 10.250 0.9743 0.01940 0.01296 0.0191 0.0316 0.8627 10.500 0.9862 0.02004 0.01372 0.0209 0.0289 0.8740 10.750 0.9934 0.02091 0.01467 0.0230 0.0263 0.8923 11.000 1.0066 0.02179 0.01576 0.0240 0.0240 0.9361 11.250 1.0340 0.02269 0.01673 0.0220 0.0214 1.0000 11.500 1.0410 0.02410 0.01813 0.0232 0.0192 1.0000 11.750 1.0535 0.02514 0.01923 0.0240 0.0177 1.0000 12.000 1.0655 0.02622 0.02035 0.0247 0.0164 1.0000 12.250 1.0741 0.02756 0.02171 0.0256 0.0151 1.0000 12.500 1.0748 0.02954 0.02375 0.0268 0.0139 1.0000 12.750 1.0860 0.03076 0.02506 0.0275 0.0129 1.0000 13.000 1.0945 0.03221 0.02657 0.0281 0.0121 1.0000 13.250 1.0992 0.03401 0.02844 0.0288 0.0115 1.0000 13.500 1.1023 0.03600 0.03047 0.0293 0.0108 1.0000 13.750 1.0931 0.03918 0.03374 0.0300 0.0103 1.0000 14.000 1.1004 0.04097 0.03563 0.0302 0.0098 1.0000 14.250 1.1023 0.04332 0.03809 0.0303 0.0094 1.0000 14.500 1.1027 0.04593 0.04081 0.0302 0.0092 1.0000 14.750 1.1041 0.04856 0.04353 0.0299 0.0088 1.0000 15.000 1.1065 0.05124 0.04626 0.0292 0.0082 1.0000 15.250 1.1039 0.05460 0.04973 0.0284 0.0081 1.0000 15.500 1.0998 0.05829 0.05352 0.0274 0.0081 1.0000 15.750 1.0916 0.06270 0.05802 0.0258 0.0077 1.0000 16.000 1.0797 0.06779 0.06323 0.0239 0.0076 1.0000 16.250 1.0760 0.07193 0.06749 0.0221 0.0076 1.0000 16.500 1.0618 0.07769 0.07339 0.0198 0.0074 1.0000 16.750 1.0570 0.08249 0.07834 0.0173 0.0072 1.0000 17.000 1.0481 0.08782 0.08379 0.0147 0.0073 1.0000 17.250 1.0393 0.09342 0.08952 0.0119 0.0073 1.0000 17.500 1.0314 0.09918 0.09542 0.0086 0.0071 1.0000 17.750 1.0199 0.10548 0.10185 0.0053 0.0071 1.0000 18.000 1.0093 0.11199 0.10850 0.0016 0.0070 1.0000 18.250 0.9977 0.11861 0.11525 -0.0021 0.0071 1.0000 18.500 0.9846 0.12585 0.12262 -0.0063 0.0070 1.0000 18.750 0.9718 0.13329 0.13019 -0.0108 0.0069 1.0000 19.000 0.9582 0.14107 0.13811 -0.0154 0.0069 1.0000