Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-raf31-il-500000-n5 Airfoil,raf31-il Reynolds number,500000 Ncrit,5 Mach,0 Max Cl/Cd,79.5509 Max Cl/Cd alpha,4.25 Url,http://airfoiltools.com/polar/csv?polar=xf-raf31-il-500000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -16.250,-0.8475,0.09192,0.08895,-0.0467,1.0000,0.0166 -16.000,-0.8881,0.08044,0.07730,-0.0536,1.0000,0.0166 -15.750,-0.9162,0.07194,0.06864,-0.0588,1.0000,0.0167 -15.500,-0.9390,0.06469,0.06124,-0.0632,1.0000,0.0167 -15.250,-0.9551,0.05872,0.05512,-0.0669,1.0000,0.0168 -15.000,-0.9663,0.05365,0.04991,-0.0701,1.0000,0.0171 -14.750,-0.9765,0.04896,0.04507,-0.0728,1.0000,0.0173 -14.500,-0.9829,0.04505,0.04103,-0.0750,1.0000,0.0175 -14.250,-0.9888,0.04146,0.03729,-0.0766,1.0000,0.0177 -14.000,-0.9908,0.03860,0.03428,-0.0776,1.0000,0.0181 -13.750,-0.9921,0.03608,0.03160,-0.0781,1.0000,0.0183 -13.500,-0.9922,0.03398,0.02935,-0.0779,1.0000,0.0185 -13.250,-0.9929,0.03212,0.02737,-0.0771,1.0000,0.0188 -13.000,-0.9951,0.03046,0.02564,-0.0755,1.0000,0.0190 -12.750,-0.9949,0.02936,0.02449,-0.0731,1.0000,0.0192 -12.500,-0.9949,0.02853,0.02361,-0.0699,1.0000,0.0195 -12.250,-0.9961,0.02777,0.02279,-0.0660,1.0000,0.0197 -12.000,-0.9888,0.02718,0.02217,-0.0634,1.0000,0.0200 -11.750,-0.9814,0.02646,0.02139,-0.0607,1.0000,0.0204 -11.500,-0.9656,0.02567,0.02051,-0.0597,0.9991,0.0208 -11.250,-0.9376,0.02478,0.01952,-0.0611,0.9960,0.0215 -11.000,-0.9110,0.02395,0.01857,-0.0620,0.9919,0.0221 -10.750,-0.8845,0.02313,0.01763,-0.0628,0.9870,0.0227 -10.500,-0.8586,0.02241,0.01680,-0.0633,0.9812,0.0231 -10.000,-0.8106,0.02068,0.01485,-0.0635,0.9651,0.0240 -9.750,-0.7854,0.01958,0.01369,-0.0640,0.9581,0.0247 -9.500,-0.7566,0.01876,0.01281,-0.0650,0.9514,0.0251 -9.250,-0.7243,0.01802,0.01202,-0.0667,0.9464,0.0257 -9.000,-0.6905,0.01735,0.01128,-0.0686,0.9413,0.0264 -8.750,-0.6556,0.01667,0.01052,-0.0706,0.9365,0.0271 -8.500,-0.6207,0.01600,0.00978,-0.0727,0.9312,0.0276 -8.250,-0.5865,0.01541,0.00910,-0.0745,0.9246,0.0281 -8.000,-0.5526,0.01488,0.00847,-0.0762,0.9174,0.0287 -7.750,-0.5229,0.01443,0.00793,-0.0770,0.9088,0.0291 -7.500,-0.4950,0.01402,0.00743,-0.0773,0.9004,0.0294 -7.250,-0.4694,0.01366,0.00699,-0.0770,0.8918,0.0296 -7.000,-0.4455,0.01324,0.00650,-0.0764,0.8842,0.0299 -6.750,-0.4226,0.01280,0.00598,-0.0757,0.8760,0.0305 -6.500,-0.3991,0.01242,0.00555,-0.0749,0.8690,0.0311 -6.250,-0.3753,0.01210,0.00516,-0.0742,0.8612,0.0318 -6.000,-0.3510,0.01181,0.00482,-0.0736,0.8543,0.0326 -5.750,-0.3266,0.01155,0.00452,-0.0729,0.8467,0.0334 -5.500,-0.3017,0.01132,0.00423,-0.0724,0.8397,0.0343 -5.250,-0.2767,0.01111,0.00396,-0.0718,0.8321,0.0351 -5.000,-0.2514,0.01091,0.00372,-0.0713,0.8246,0.0359 -4.750,-0.2262,0.01073,0.00348,-0.0707,0.8160,0.0368 -4.500,-0.2010,0.01055,0.00326,-0.0701,0.8067,0.0389 -4.250,-0.1761,0.01035,0.00304,-0.0695,0.7970,0.0430 -4.000,-0.1523,0.01004,0.00285,-0.0687,0.7864,0.0674 -3.750,-0.1266,0.00992,0.00269,-0.0683,0.7773,0.0772 -3.500,-0.1012,0.00977,0.00253,-0.0677,0.7681,0.0859 -3.250,-0.0756,0.00964,0.00239,-0.0673,0.7594,0.0947 -2.750,-0.0269,0.00914,0.00208,-0.0660,0.7413,0.1582 -2.500,-0.0023,0.00893,0.00196,-0.0653,0.7331,0.1967 -2.250,0.0225,0.00874,0.00185,-0.0648,0.7239,0.2290 -2.000,0.0470,0.00852,0.00176,-0.0641,0.7159,0.2734 -1.750,0.0718,0.00834,0.00171,-0.0635,0.7074,0.3176 -1.500,0.0973,0.00824,0.00166,-0.0630,0.6997,0.3476 -1.250,0.1230,0.00812,0.00163,-0.0626,0.6924,0.3784 -1.000,0.1482,0.00801,0.00160,-0.0620,0.6855,0.4120 -0.750,0.1737,0.00789,0.00158,-0.0615,0.6781,0.4429 -0.500,0.1985,0.00778,0.00157,-0.0609,0.6712,0.4807 -0.250,0.2241,0.00768,0.00158,-0.0603,0.6641,0.5142 0.000,0.2495,0.00763,0.00159,-0.0598,0.6567,0.5442 0.250,0.2752,0.00757,0.00161,-0.0592,0.6487,0.5708 0.500,0.3003,0.00755,0.00162,-0.0586,0.6394,0.5952 0.750,0.3259,0.00752,0.00165,-0.0580,0.6301,0.6200 1.000,0.3509,0.00749,0.00169,-0.0573,0.6211,0.6445 1.250,0.3753,0.00745,0.00174,-0.0565,0.6107,0.6780 1.500,0.3995,0.00742,0.00180,-0.0556,0.5988,0.7088 1.750,0.4240,0.00744,0.00185,-0.0547,0.5856,0.7317 2.000,0.4483,0.00748,0.00191,-0.0539,0.5693,0.7508 2.250,0.4713,0.00757,0.00197,-0.0528,0.5461,0.7699 2.500,0.4927,0.00771,0.00205,-0.0513,0.5138,0.7897 2.750,0.5133,0.00791,0.00216,-0.0498,0.4801,0.8103 3.000,0.5349,0.00808,0.00229,-0.0484,0.4561,0.8332 3.500,0.5875,0.00838,0.00262,-0.0478,0.4207,0.8948 3.750,0.6345,0.00861,0.00285,-0.0521,0.4025,0.9272 4.000,0.6860,0.00886,0.00307,-0.0574,0.3812,0.9521 4.250,0.7263,0.00913,0.00325,-0.0603,0.3526,0.9737 4.500,0.7548,0.00971,0.00352,-0.0609,0.2853,0.9904 4.750,0.7836,0.01017,0.00383,-0.0615,0.2605,1.0000 5.000,0.8025,0.01047,0.00407,-0.0598,0.2449,1.0000 5.250,0.8221,0.01075,0.00430,-0.0582,0.2285,1.0000 5.500,0.8401,0.01113,0.00454,-0.0563,0.1948,1.0000 5.750,0.8539,0.01174,0.00489,-0.0538,0.1488,1.0000 6.000,0.8707,0.01219,0.00523,-0.0518,0.1273,1.0000 6.250,0.8886,0.01257,0.00556,-0.0499,0.1132,1.0000 6.500,0.9068,0.01294,0.00587,-0.0482,0.1021,1.0000 6.750,0.9249,0.01331,0.00619,-0.0464,0.0930,1.0000 7.000,0.9440,0.01361,0.00649,-0.0448,0.0866,1.0000 7.250,0.9619,0.01398,0.00683,-0.0430,0.0802,1.0000 7.500,0.9810,0.01428,0.00714,-0.0415,0.0757,1.0000 7.750,0.9989,0.01463,0.00748,-0.0397,0.0708,1.0000 8.000,1.0157,0.01498,0.00783,-0.0377,0.0671,1.0000 8.250,1.0324,0.01529,0.00817,-0.0357,0.0639,1.0000 8.500,1.0480,0.01565,0.00853,-0.0335,0.0599,1.0000 8.750,1.0631,0.01606,0.00894,-0.0314,0.0564,1.0000 9.000,1.0798,0.01641,0.00931,-0.0295,0.0523,1.0000 9.250,1.0950,0.01687,0.00975,-0.0275,0.0476,1.0000 9.500,1.1106,0.01731,0.01022,-0.0256,0.0424,1.0000 9.750,1.1246,0.01787,0.01074,-0.0236,0.0351,1.0000 10.000,1.1351,0.01864,0.01143,-0.0212,0.0242,1.0000 10.250,1.1457,0.01944,0.01220,-0.0188,0.0194,1.0000 10.500,1.1575,0.02020,0.01299,-0.0168,0.0173,1.0000 10.750,1.1695,0.02099,0.01381,-0.0148,0.0159,1.0000 11.000,1.1824,0.02174,0.01464,-0.0131,0.0151,1.0000 11.250,1.1941,0.02260,0.01556,-0.0113,0.0141,1.0000 11.500,1.2048,0.02356,0.01656,-0.0096,0.0133,1.0000 11.750,1.2140,0.02466,0.01772,-0.0078,0.0126,1.0000 12.000,1.2245,0.02569,0.01883,-0.0062,0.0122,1.0000 12.250,1.2352,0.02675,0.01996,-0.0048,0.0118,1.0000 12.500,1.2454,0.02786,0.02115,-0.0034,0.0115,1.0000 12.750,1.2542,0.02912,0.02250,-0.0020,0.0111,1.0000 13.000,1.2627,0.03045,0.02391,-0.0007,0.0107,1.0000 13.250,1.2700,0.03191,0.02544,0.0005,0.0105,1.0000 13.500,1.2762,0.03351,0.02713,0.0016,0.0102,1.0000 13.750,1.2805,0.03534,0.02902,0.0027,0.0099,1.0000 14.000,1.2827,0.03741,0.03117,0.0036,0.0096,1.0000 14.250,1.2847,0.03957,0.03343,0.0044,0.0093,1.0000 14.500,1.2883,0.04165,0.03561,0.0050,0.0092,1.0000 14.750,1.2906,0.04392,0.03799,0.0056,0.0090,1.0000 15.000,1.2940,0.04614,0.04031,0.0059,0.0088,1.0000 15.250,1.2947,0.04874,0.04301,0.0061,0.0088,1.0000 15.500,1.2949,0.05147,0.04585,0.0061,0.0085,1.0000 15.750,1.2919,0.05469,0.04918,0.0059,0.0085,1.0000 16.000,1.2906,0.05783,0.05243,0.0055,0.0083,1.0000 16.250,1.2861,0.06149,0.05620,0.0048,0.0082,1.0000 16.500,1.2835,0.06500,0.05982,0.0040,0.0080,1.0000 16.750,1.2779,0.06907,0.06400,0.0029,0.0079,1.0000 17.000,1.2715,0.07339,0.06843,0.0016,0.0078,1.0000 17.250,1.2645,0.07787,0.07303,0.0001,0.0077,1.0000 17.500,1.2557,0.08274,0.07801,-0.0017,0.0077,1.0000 17.750,1.2453,0.08794,0.08333,-0.0037,0.0077,1.0000 18.000,1.2340,0.09340,0.08891,-0.0059,0.0075,1.0000 18.250,1.2226,0.09892,0.09454,-0.0081,0.0076,1.0000 18.500,1.2104,0.10477,0.10051,-0.0107,0.0075,1.0000 18.750,1.1973,0.11091,0.10677,-0.0135,0.0075,1.0000 19.000,1.1841,0.11719,0.11317,-0.0165,0.0074,1.0000