Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-sc20518-il-500000 Airfoil,sc20518-il Reynolds number,500000 Ncrit,9 Mach,0 Max Cl/Cd,59.3294 Max Cl/Cd alpha,6.75 Url,http://airfoiltools.com/polar/csv?polar=xf-sc20518-il-500000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -19.750,-1.2174,0.08433,0.07916,-0.0574,1.0000,0.0470 -19.500,-1.2210,0.08052,0.07523,-0.0590,1.0000,0.0475 -19.250,-1.2164,0.07817,0.07288,-0.0595,1.0000,0.0481 -19.000,-1.2115,0.07566,0.07036,-0.0604,1.0000,0.0486 -18.750,-1.2080,0.07294,0.06760,-0.0615,1.0000,0.0491 -18.500,-1.2041,0.07028,0.06489,-0.0624,1.0000,0.0497 -18.250,-1.2011,0.06753,0.06208,-0.0634,1.0000,0.0502 -18.000,-1.1973,0.06492,0.05938,-0.0642,1.0000,0.0508 -17.750,-1.1941,0.06227,0.05664,-0.0650,1.0000,0.0514 -17.500,-1.1903,0.05973,0.05399,-0.0657,1.0000,0.0520 -17.250,-1.1861,0.05725,0.05138,-0.0664,1.0000,0.0525 -17.000,-1.1779,0.05551,0.04962,-0.0663,1.0000,0.0533 -16.750,-1.1686,0.05384,0.04796,-0.0664,1.0000,0.0540 -16.500,-1.1601,0.05204,0.04614,-0.0666,1.0000,0.0546 -16.250,-1.1505,0.05033,0.04441,-0.0669,1.0000,0.0553 -16.000,-1.1412,0.04863,0.04266,-0.0670,1.0000,0.0561 -15.750,-1.1320,0.04693,0.04089,-0.0672,1.0000,0.0569 -15.500,-1.1222,0.04532,0.03920,-0.0673,1.0000,0.0577 -15.250,-1.1130,0.04365,0.03743,-0.0674,1.0000,0.0584 -15.000,-1.1013,0.04242,0.03622,-0.0669,1.0000,0.0594 -14.750,-1.0895,0.04115,0.03496,-0.0666,1.0000,0.0603 -14.500,-1.0776,0.03989,0.03369,-0.0664,1.0000,0.0612 -14.250,-1.0658,0.03864,0.03241,-0.0662,1.0000,0.0621 -14.000,-1.0536,0.03747,0.03120,-0.0658,1.0000,0.0631 -13.750,-1.0412,0.03636,0.03003,-0.0654,1.0000,0.0640 -13.500,-1.0295,0.03525,0.02884,-0.0649,1.0000,0.0647 -13.250,-1.0180,0.03426,0.02788,-0.0638,1.0000,0.0658 -13.000,-1.0072,0.03328,0.02692,-0.0628,1.0000,0.0668 -12.750,-0.9967,0.03238,0.02602,-0.0617,1.0000,0.0677 -12.500,-0.9872,0.03151,0.02515,-0.0603,1.0000,0.0687 -12.250,-0.9784,0.03070,0.02431,-0.0587,1.0000,0.0698 -12.000,-0.9705,0.02997,0.02355,-0.0568,1.0000,0.0708 -11.750,-0.9648,0.02930,0.02283,-0.0545,1.0000,0.0715 -11.500,-0.9644,0.02855,0.02210,-0.0513,1.0000,0.0725 -11.250,-0.9686,0.02788,0.02146,-0.0473,1.0000,0.0733 -11.000,-0.9770,0.02730,0.02089,-0.0427,1.0000,0.0740 -10.750,-0.9552,0.02647,0.02006,-0.0435,0.9982,0.0753 -10.500,-0.9252,0.02566,0.01923,-0.0456,0.9956,0.0770 -10.250,-0.8942,0.02493,0.01846,-0.0478,0.9932,0.0786 -10.000,-0.8658,0.02397,0.01751,-0.0498,0.9909,0.0804 -9.750,-0.8419,0.02308,0.01665,-0.0509,0.9861,0.0821 -9.500,-0.8127,0.02235,0.01593,-0.0526,0.9826,0.0841 -9.250,-0.7804,0.02168,0.01524,-0.0548,0.9801,0.0863 -9.000,-0.7472,0.02080,0.01437,-0.0575,0.9781,0.0886 -8.750,-0.7202,0.02000,0.01361,-0.0588,0.9729,0.0911 -8.500,-0.6879,0.01937,0.01297,-0.0609,0.9694,0.0940 -8.250,-0.6540,0.01866,0.01226,-0.0633,0.9668,0.0970 -8.000,-0.6203,0.01782,0.01147,-0.0660,0.9644,0.1009 -7.750,-0.5845,0.01725,0.01089,-0.0685,0.9624,0.1051 -7.500,-0.5616,0.01649,0.01018,-0.0690,0.9541,0.1096 -7.250,-0.5288,0.01588,0.00959,-0.0710,0.9502,0.1150 -7.000,-0.4955,0.01514,0.00890,-0.0733,0.9468,0.1220 -6.750,-0.4677,0.01460,0.00839,-0.0743,0.9400,0.1295 -6.500,-0.4357,0.01395,0.00779,-0.0762,0.9349,0.1394 -6.250,-0.4017,0.01328,0.00719,-0.0786,0.9308,0.1533 -6.000,-0.3689,0.01259,0.00664,-0.0809,0.9251,0.1748 -5.750,-0.3344,0.01182,0.00606,-0.0836,0.9192,0.2124 -5.500,-0.2966,0.01091,0.00543,-0.0871,0.9147,0.2704 -5.250,-0.2550,0.00991,0.00477,-0.0916,0.9103,0.3448 -5.000,-0.2114,0.00893,0.00423,-0.0965,0.9045,0.4416 -4.750,-0.1741,0.00862,0.00417,-0.0988,0.8985,0.5034 -4.500,-0.1407,0.00861,0.00415,-0.0998,0.8933,0.5286 -4.250,-0.1089,0.00864,0.00420,-0.1005,0.8866,0.5438 -4.000,-0.0768,0.00867,0.00419,-0.1011,0.8801,0.5555 -3.750,-0.0454,0.00876,0.00426,-0.1016,0.8745,0.5651 -3.500,-0.0132,0.00883,0.00428,-0.1023,0.8682,0.5735 -3.250,0.0166,0.00893,0.00441,-0.1024,0.8613,0.5800 -3.000,0.0479,0.00904,0.00447,-0.1028,0.8553,0.5869 -2.750,0.0800,0.00913,0.00451,-0.1035,0.8493,0.5928 -2.500,0.1092,0.00920,0.00462,-0.1034,0.8428,0.5975 -2.250,0.1388,0.00932,0.00473,-0.1033,0.8357,0.6024 -2.000,0.1688,0.00940,0.00477,-0.1034,0.8244,0.6076 -1.750,0.1999,0.00947,0.00472,-0.1037,0.8112,0.6117 -1.500,0.2277,0.00947,0.00475,-0.1032,0.7978,0.6165 -1.250,0.2550,0.00966,0.00495,-0.1025,0.7862,0.6214 -1.000,0.2842,0.00982,0.00510,-0.1023,0.7764,0.6267 -0.750,0.3154,0.00993,0.00516,-0.1028,0.7671,0.6308 -0.500,0.3463,0.00993,0.00511,-0.1032,0.7555,0.6339 -0.250,0.3749,0.00993,0.00513,-0.1030,0.7435,0.6366 0.250,0.4333,0.01002,0.00518,-0.1029,0.7183,0.6407 0.500,0.4634,0.01004,0.00516,-0.1032,0.7054,0.6423 0.750,0.4933,0.01008,0.00514,-0.1034,0.6906,0.6440 1.000,0.5235,0.01012,0.00513,-0.1037,0.6734,0.6457 1.250,0.5534,0.01018,0.00512,-0.1039,0.6530,0.6474 1.500,0.5830,0.01027,0.00511,-0.1041,0.6271,0.6491 1.750,0.6117,0.01043,0.00513,-0.1041,0.5929,0.6508 2.000,0.6380,0.01076,0.00519,-0.1038,0.5334,0.6522 2.250,0.6598,0.01151,0.00544,-0.1027,0.4363,0.6537 2.500,0.6819,0.01216,0.00569,-0.1019,0.3560,0.6561 2.750,0.7052,0.01272,0.00599,-0.1011,0.2985,0.6580 3.000,0.7292,0.01325,0.00628,-0.1004,0.2527,0.6598 3.250,0.7539,0.01371,0.00655,-0.0998,0.2152,0.6614 3.500,0.7790,0.01415,0.00682,-0.0994,0.1876,0.6629 3.750,0.8051,0.01451,0.00708,-0.0990,0.1688,0.6645 4.000,0.8312,0.01485,0.00734,-0.0987,0.1535,0.6662 4.250,0.8573,0.01520,0.00760,-0.0984,0.1415,0.6679 4.500,0.8834,0.01554,0.00787,-0.0981,0.1316,0.6697 4.750,0.9100,0.01584,0.00813,-0.0978,0.1243,0.6714 5.000,0.9353,0.01623,0.00845,-0.0974,0.1179,0.6730 5.250,0.9618,0.01653,0.00873,-0.0971,0.1128,0.6745 5.500,0.9860,0.01696,0.00910,-0.0965,0.1080,0.6761 5.750,1.0118,0.01718,0.00936,-0.0961,0.1046,0.6782 6.000,1.0359,0.01752,0.00970,-0.0954,0.1012,0.6800 6.250,1.0578,0.01801,0.01017,-0.0943,0.0978,0.6818 6.500,1.0825,0.01829,0.01049,-0.0936,0.0951,0.6838 6.750,1.1059,0.01864,0.01085,-0.0928,0.0924,0.6860 7.000,1.1266,0.01916,0.01134,-0.0915,0.0898,0.6883 7.250,1.1490,0.01955,0.01177,-0.0905,0.0877,0.6905 7.500,1.1717,0.01991,0.01214,-0.0896,0.0855,0.6927 7.750,1.1929,0.02032,0.01254,-0.0885,0.0833,0.6949 8.000,1.2075,0.02096,0.01315,-0.0862,0.0812,0.6967 8.250,1.2255,0.02133,0.01358,-0.0845,0.0796,0.6989 8.500,1.2446,0.02176,0.01406,-0.0830,0.0779,0.7015 8.750,1.2635,0.02227,0.01461,-0.0815,0.0762,0.7038 9.000,1.2801,0.02295,0.01528,-0.0799,0.0745,0.7061 9.250,1.2955,0.02375,0.01611,-0.0780,0.0729,0.7086 9.500,1.3150,0.02427,0.01670,-0.0768,0.0714,0.7112 9.750,1.3335,0.02487,0.01734,-0.0755,0.0698,0.7139 10.000,1.3511,0.02555,0.01802,-0.0742,0.0684,0.7167 10.250,1.3655,0.02648,0.01893,-0.0725,0.0671,0.7191 10.500,1.3804,0.02738,0.01989,-0.0710,0.0659,0.7219 10.750,1.3973,0.02807,0.02068,-0.0696,0.0647,0.7251 11.000,1.4131,0.02886,0.02154,-0.0682,0.0635,0.7280 11.250,1.4282,0.02972,0.02244,-0.0668,0.0624,0.7311 11.500,1.4425,0.03066,0.02342,-0.0653,0.0614,0.7342 11.750,1.4534,0.03193,0.02467,-0.0637,0.0603,0.7374 12.000,1.4670,0.03302,0.02583,-0.0624,0.0594,0.7405 12.250,1.4815,0.03401,0.02691,-0.0612,0.0584,0.7435 12.500,1.4947,0.03506,0.02806,-0.0599,0.0574,0.7467 12.750,1.5070,0.03622,0.02928,-0.0586,0.0565,0.7498 13.000,1.5185,0.03746,0.03057,-0.0574,0.0557,0.7532 13.250,1.5286,0.03886,0.03201,-0.0561,0.0550,0.7567 13.500,1.5357,0.04059,0.03374,-0.0546,0.0542,0.7603 13.750,1.5454,0.04214,0.03537,-0.0535,0.0536,0.7636 14.000,1.5547,0.04365,0.03702,-0.0524,0.0530,0.7672 14.250,1.5630,0.04528,0.03876,-0.0513,0.0523,0.7706 14.500,1.5707,0.04700,0.04057,-0.0503,0.0517,0.7742 14.750,1.5778,0.04883,0.04247,-0.0494,0.0510,0.7780 15.000,1.5848,0.05073,0.04444,-0.0487,0.0505,0.7816 15.250,1.5911,0.05274,0.04650,-0.0480,0.0499,0.7850 15.500,1.5956,0.05489,0.04871,-0.0473,0.0494,0.7881 15.750,1.5988,0.05719,0.05105,-0.0464,0.0488,0.7912 16.000,1.6012,0.05968,0.05363,-0.0457,0.0483,0.7946 16.250,1.6038,0.06233,0.05642,-0.0456,0.0479,0.7983 16.500,1.6057,0.06515,0.05936,-0.0456,0.0474,0.8018 16.750,1.6067,0.06804,0.06238,-0.0455,0.0470,0.8048 17.000,1.6068,0.07108,0.06554,-0.0456,0.0466,0.8077 17.250,1.6065,0.07424,0.06882,-0.0458,0.0462,0.8108 17.500,1.6057,0.07756,0.07225,-0.0463,0.0457,0.8142 17.750,1.6047,0.08102,0.07579,-0.0470,0.0454,0.8176 18.000,1.6034,0.08459,0.07944,-0.0478,0.0450,0.8208 18.250,1.6013,0.08819,0.08313,-0.0487,0.0447,0.8236 18.500,1.5991,0.09182,0.08684,-0.0496,0.0443,0.8264 18.750,1.5970,0.09546,0.09054,-0.0505,0.0440,0.8296 19.000,1.5939,0.09917,0.09431,-0.0514,0.0436,0.8329 19.250,1.5872,0.10355,0.09880,-0.0529,0.0433,0.8360