Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-usa51-il-500000 Airfoil,usa51-il Reynolds number,500000 Ncrit,9 Mach,0 Max Cl/Cd,80.7475 Max Cl/Cd alpha,4 Url,http://airfoiltools.com/polar/csv?polar=xf-usa51-il-500000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -10.750,-0.4528,0.11366,0.11130,-0.0170,1.0000,0.0183 -10.500,-0.4501,0.10996,0.10761,-0.0185,1.0000,0.0184 -10.250,-0.4484,0.10597,0.10364,-0.0204,1.0000,0.0186 -9.750,-0.3680,0.08563,0.08351,-0.0286,1.0000,0.0194 -9.500,-0.3647,0.08296,0.08085,-0.0281,1.0000,0.0199 -9.250,-0.3641,0.07966,0.07757,-0.0284,1.0000,0.0203 -9.000,-0.3641,0.07642,0.07435,-0.0287,1.0000,0.0208 -8.750,-0.3658,0.07291,0.07085,-0.0292,1.0000,0.0215 -8.500,-0.3719,0.06864,0.06661,-0.0301,1.0000,0.0217 -8.250,-0.3798,0.06445,0.06245,-0.0311,1.0000,0.0220 -8.000,-0.3922,0.06014,0.05819,-0.0321,1.0000,0.0219 -7.750,-0.4168,0.05602,0.05412,-0.0331,1.0000,0.0216 -7.500,-0.4372,0.05240,0.05050,-0.0329,1.0000,0.0217 -7.250,-0.4534,0.04765,0.04571,-0.0329,1.0000,0.0215 -7.000,-0.4624,0.04366,0.04166,-0.0322,1.0000,0.0219 -6.750,-0.4692,0.03950,0.03740,-0.0311,1.0000,0.0222 -6.500,-0.4631,0.03426,0.03199,-0.0323,0.9986,0.0233 -6.250,-0.4344,0.02910,0.02637,-0.0355,0.9953,0.0258 -6.000,-0.4778,0.02963,0.02586,-0.0311,0.9949,0.0182 -5.750,-0.4545,0.02369,0.01927,-0.0319,0.9908,0.0173 -5.500,-0.4235,0.02044,0.01551,-0.0328,0.9871,0.0176 -5.250,-0.3873,0.01846,0.01314,-0.0345,0.9844,0.0182 -5.000,-0.3549,0.01629,0.01065,-0.0357,0.9810,0.0199 -4.750,-0.3212,0.01526,0.00955,-0.0370,0.9762,0.0211 -4.500,-0.2833,0.01427,0.00846,-0.0391,0.9728,0.0226 -4.250,-0.2448,0.01341,0.00750,-0.0412,0.9706,0.0245 -4.000,-0.2119,0.01312,0.00713,-0.0420,0.9653,0.0259 -3.750,-0.1806,0.01151,0.00546,-0.0428,0.9607,0.0295 -3.500,-0.1423,0.01087,0.00480,-0.0449,0.9576,0.0328 -3.250,-0.1091,0.01046,0.00434,-0.0459,0.9516,0.0355 -3.000,-0.0781,0.00970,0.00354,-0.0464,0.9441,0.0403 -2.750,-0.0486,0.00930,0.00311,-0.0466,0.9339,0.0446 -2.500,-0.0182,0.00894,0.00272,-0.0469,0.9225,0.0509 -2.250,0.0108,0.00852,0.00239,-0.0469,0.9068,0.0747 -2.000,0.0387,0.00783,0.00211,-0.0470,0.8866,0.1937 -1.750,0.0657,0.00725,0.00188,-0.0469,0.8610,0.3144 -1.500,0.0865,0.00646,0.00171,-0.0456,0.8331,0.5281 -1.250,0.1043,0.00596,0.00166,-0.0432,0.8047,0.7053 -1.000,0.1246,0.00577,0.00166,-0.0411,0.7762,0.8001 -0.750,0.1485,0.00573,0.00168,-0.0397,0.7474,0.8709 -0.500,0.1848,0.00581,0.00171,-0.0410,0.7182,0.9208 -0.250,0.2272,0.00599,0.00174,-0.0439,0.6885,0.9457 0.000,0.2700,0.00623,0.00180,-0.0468,0.6521,0.9654 0.250,0.3145,0.00656,0.00187,-0.0502,0.6000,0.9805 0.500,0.3589,0.00693,0.00190,-0.0538,0.5349,0.9894 0.750,0.3996,0.00721,0.00193,-0.0567,0.4952,0.9956 1.000,0.4404,0.00737,0.00193,-0.0597,0.4706,1.0000 1.250,0.4614,0.00748,0.00194,-0.0585,0.4553,1.0000 1.500,0.4830,0.00758,0.00196,-0.0573,0.4419,1.0000 1.750,0.5050,0.00768,0.00200,-0.0561,0.4295,1.0000 2.000,0.5274,0.00779,0.00205,-0.0551,0.4195,1.0000 2.250,0.5499,0.00792,0.00211,-0.0540,0.4096,1.0000 2.500,0.5730,0.00802,0.00218,-0.0531,0.3991,1.0000 2.750,0.5963,0.00813,0.00227,-0.0521,0.3886,1.0000 3.000,0.6195,0.00826,0.00235,-0.0512,0.3772,1.0000 3.250,0.6428,0.00839,0.00244,-0.0503,0.3640,1.0000 3.500,0.6663,0.00852,0.00254,-0.0494,0.3510,1.0000 3.750,0.6898,0.00866,0.00265,-0.0485,0.3356,1.0000 4.000,0.7130,0.00883,0.00277,-0.0476,0.3145,1.0000 4.250,0.7341,0.00920,0.00292,-0.0464,0.2660,1.0000 4.500,0.7489,0.01019,0.00333,-0.0443,0.1619,1.0000 4.750,0.7697,0.01065,0.00366,-0.0430,0.1398,1.0000 5.000,0.7917,0.01100,0.00398,-0.0419,0.1303,1.0000 5.250,0.8145,0.01127,0.00424,-0.0410,0.1236,1.0000 5.500,0.8368,0.01160,0.00454,-0.0400,0.1167,1.0000 5.750,0.8601,0.01182,0.00478,-0.0392,0.1100,1.0000 6.000,0.8830,0.01208,0.00504,-0.0383,0.1005,1.0000 6.250,0.9021,0.01271,0.00531,-0.0369,0.0456,1.0000 6.500,0.9200,0.01348,0.00604,-0.0351,0.0270,1.0000 6.750,0.9405,0.01401,0.00668,-0.0337,0.0239,1.0000 7.000,0.9593,0.01471,0.00753,-0.0320,0.0209,1.0000 7.250,0.9789,0.01532,0.00823,-0.0305,0.0194,1.0000 7.500,0.9982,0.01593,0.00891,-0.0290,0.0183,1.0000 7.750,1.0163,0.01663,0.00970,-0.0274,0.0173,1.0000 8.000,1.0332,0.01742,0.01057,-0.0255,0.0164,1.0000 8.250,1.0484,0.01832,0.01153,-0.0235,0.0156,1.0000 8.500,1.0597,0.01949,0.01279,-0.0209,0.0148,1.0000 9.000,1.0770,0.02231,0.01577,-0.0152,0.0136,1.0000 9.250,1.0923,0.02310,0.01664,-0.0133,0.0131,1.0000 9.500,1.1047,0.02419,0.01781,-0.0110,0.0127,1.0000 9.750,1.1154,0.02534,0.01903,-0.0085,0.0124,1.0000 10.000,1.1255,0.02662,0.02039,-0.0060,0.0121,1.0000 10.250,1.1360,0.02798,0.02185,-0.0036,0.0118,1.0000 10.500,1.1473,0.02955,0.02353,-0.0015,0.0117,1.0000 10.750,1.1588,0.03136,0.02545,0.0004,0.0116,1.0000 11.000,1.1694,0.03326,0.02748,0.0023,0.0115,1.0000 11.250,1.1780,0.03531,0.02970,0.0044,0.0115,1.0000 11.500,1.1845,0.03657,0.03099,0.0063,0.0108,1.0000 11.750,1.1916,0.03825,0.03274,0.0080,0.0105,1.0000 12.000,1.1960,0.04037,0.03494,0.0097,0.0102,1.0000 12.250,1.1991,0.04287,0.03757,0.0114,0.0101,1.0000 17.000,0.6977,0.17533,0.17335,-0.0511,0.0201,1.0000 17.250,0.6968,0.18060,0.17862,-0.0538,0.0200,1.0000