Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-s4180-il-1000000-n5 Airfoil,s4180-il Reynolds number,1000000 Ncrit,5 Mach,0 Max Cl/Cd,122.599 Max Cl/Cd alpha,4.5 Url,http://airfoiltools.com/polar/csv?polar=xf-s4180-il-1000000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -10.500,-0.3653,0.10642,0.10470,-0.0193,1.0000,0.0082 -9.000,-0.5284,0.02710,0.02424,-0.0822,0.8426,0.0096 -8.750,-0.5120,0.02280,0.01943,-0.0842,0.8298,0.0097 -8.500,-0.4895,0.02077,0.01709,-0.0849,0.8176,0.0099 -8.250,-0.4651,0.01936,0.01543,-0.0852,0.8060,0.0101 -8.000,-0.4400,0.01806,0.01388,-0.0854,0.7949,0.0103 -7.750,-0.4143,0.01698,0.01257,-0.0856,0.7835,0.0104 -7.500,-0.3878,0.01607,0.01147,-0.0857,0.7721,0.0105 -7.250,-0.3610,0.01531,0.01053,-0.0857,0.7610,0.0106 -7.000,-0.3338,0.01468,0.00973,-0.0857,0.7497,0.0107 -6.750,-0.3072,0.01351,0.00834,-0.0859,0.7379,0.0110 -6.500,-0.2797,0.01285,0.00756,-0.0859,0.7265,0.0112 -6.250,-0.2520,0.01237,0.00696,-0.0859,0.7149,0.0113 -6.000,-0.2241,0.01197,0.00645,-0.0859,0.7032,0.0115 -5.750,-0.1960,0.01159,0.00598,-0.0859,0.6912,0.0117 -5.500,-0.1678,0.01123,0.00552,-0.0859,0.6798,0.0119 -5.250,-0.1396,0.01089,0.00508,-0.0859,0.6686,0.0121 -5.000,-0.1113,0.01058,0.00467,-0.0859,0.6566,0.0124 -4.750,-0.0829,0.01029,0.00429,-0.0858,0.6453,0.0126 -4.500,-0.0545,0.01001,0.00393,-0.0858,0.6346,0.0129 -4.250,-0.0260,0.00977,0.00361,-0.0858,0.6235,0.0131 -4.000,0.0025,0.00958,0.00334,-0.0858,0.6121,0.0135 -3.750,0.0311,0.00942,0.00311,-0.0857,0.6021,0.0137 -3.500,0.0597,0.00914,0.00276,-0.0858,0.5916,0.0142 -3.250,0.0883,0.00894,0.00249,-0.0858,0.5806,0.0147 -3.000,0.1170,0.00878,0.00229,-0.0858,0.5705,0.0152 -2.750,0.1457,0.00866,0.00211,-0.0857,0.5606,0.0157 -2.500,0.1744,0.00856,0.00195,-0.0857,0.5498,0.0163 -2.250,0.2031,0.00846,0.00181,-0.0857,0.5403,0.0169 -2.000,0.2318,0.00839,0.00168,-0.0857,0.5306,0.0175 -1.750,0.2605,0.00829,0.00155,-0.0857,0.5208,0.0190 -1.500,0.2892,0.00823,0.00146,-0.0857,0.5118,0.0212 -1.250,0.3179,0.00814,0.00137,-0.0857,0.5024,0.0298 -1.000,0.3466,0.00805,0.00131,-0.0858,0.4937,0.0467 -0.750,0.3752,0.00802,0.00128,-0.0858,0.4850,0.0575 -0.500,0.4040,0.00797,0.00125,-0.0858,0.4768,0.0692 -0.250,0.4326,0.00794,0.00124,-0.0858,0.4684,0.0858 0.000,0.4613,0.00790,0.00123,-0.0859,0.4606,0.1063 0.250,0.4898,0.00787,0.00123,-0.0859,0.4527,0.1314 0.500,0.5185,0.00782,0.00124,-0.0860,0.4449,0.1632 1.000,0.5757,0.00763,0.00131,-0.0862,0.4296,0.2828 1.250,0.6042,0.00757,0.00136,-0.0863,0.4221,0.3479 1.500,0.6328,0.00741,0.00142,-0.0865,0.4143,0.4463 1.750,0.6612,0.00719,0.00152,-0.0867,0.4064,0.5873 2.000,0.6891,0.00696,0.00162,-0.0867,0.3982,0.7255 2.250,0.7136,0.00672,0.00173,-0.0858,0.3902,0.8650 2.500,0.7386,0.00660,0.00175,-0.0848,0.3816,1.0000 2.750,0.7669,0.00673,0.00182,-0.0848,0.3731,1.0000 3.000,0.7951,0.00687,0.00190,-0.0848,0.3635,1.0000 3.250,0.8233,0.00699,0.00198,-0.0848,0.3550,1.0000 3.500,0.8513,0.00715,0.00208,-0.0847,0.3458,1.0000 3.750,0.8794,0.00729,0.00218,-0.0847,0.3359,1.0000 4.000,0.9073,0.00745,0.00229,-0.0847,0.3259,1.0000 4.250,0.9349,0.00764,0.00242,-0.0846,0.3141,1.0000 4.500,0.9624,0.00785,0.00256,-0.0846,0.3008,1.0000 4.750,0.9898,0.00808,0.00271,-0.0845,0.2863,1.0000 5.000,1.0168,0.00834,0.00289,-0.0844,0.2689,1.0000 5.250,1.0438,0.00859,0.00307,-0.0843,0.2544,1.0000 5.500,1.0705,0.00887,0.00328,-0.0841,0.2384,1.0000 5.750,1.0969,0.00920,0.00351,-0.0840,0.2201,1.0000 6.000,1.1233,0.00951,0.00374,-0.0838,0.2045,1.0000 6.250,1.1495,0.00984,0.00400,-0.0836,0.1898,1.0000 6.500,1.1752,0.01021,0.00428,-0.0834,0.1737,1.0000 6.750,1.2007,0.01060,0.00459,-0.0831,0.1578,1.0000 7.000,1.2263,0.01096,0.00489,-0.0829,0.1451,1.0000 7.250,1.2519,0.01131,0.00519,-0.0826,0.1343,1.0000 7.500,1.2771,0.01168,0.00551,-0.0823,0.1230,1.0000 7.750,1.3020,0.01208,0.00585,-0.0820,0.1121,1.0000 8.000,1.3266,0.01249,0.00621,-0.0817,0.1027,1.0000 8.250,1.3516,0.01284,0.00655,-0.0813,0.0956,1.0000 8.500,1.3759,0.01325,0.00692,-0.0809,0.0881,1.0000 8.750,1.3997,0.01368,0.00732,-0.0805,0.0807,1.0000 9.000,1.4239,0.01406,0.00769,-0.0801,0.0755,1.0000 9.250,1.4472,0.01452,0.00812,-0.0796,0.0698,1.0000 9.500,1.4706,0.01492,0.00853,-0.0791,0.0655,1.0000 9.750,1.4937,0.01534,0.00896,-0.0785,0.0619,1.0000 10.000,1.5156,0.01584,0.00944,-0.0779,0.0575,1.0000 10.250,1.5383,0.01624,0.00987,-0.0773,0.0552,1.0000 10.500,1.5602,0.01669,0.01034,-0.0766,0.0528,1.0000 10.750,1.5805,0.01723,0.01088,-0.0757,0.0496,1.0000 11.000,1.6008,0.01775,0.01141,-0.0748,0.0467,1.0000 11.250,1.6206,0.01825,0.01194,-0.0739,0.0444,1.0000 11.500,1.6386,0.01884,0.01255,-0.0728,0.0418,1.0000 11.750,1.6554,0.01947,0.01319,-0.0714,0.0396,1.0000 12.000,1.6716,0.02002,0.01378,-0.0700,0.0384,1.0000 12.250,1.6839,0.02061,0.01442,-0.0679,0.0370,1.0000 12.500,1.6940,0.02132,0.01517,-0.0657,0.0355,1.0000 12.750,1.7016,0.02223,0.01610,-0.0634,0.0333,1.0000 13.000,1.7103,0.02317,0.01708,-0.0615,0.0319,1.0000 13.250,1.7196,0.02415,0.01812,-0.0598,0.0306,1.0000 13.500,1.7273,0.02531,0.01933,-0.0582,0.0291,1.0000 13.750,1.7335,0.02667,0.02073,-0.0567,0.0277,1.0000 14.000,1.7388,0.02821,0.02231,-0.0553,0.0262,1.0000 14.250,1.7458,0.02969,0.02387,-0.0543,0.0255,1.0000 14.500,1.7516,0.03138,0.02563,-0.0533,0.0244,1.0000 14.750,1.7555,0.03331,0.02762,-0.0525,0.0233,1.0000 15.000,1.7571,0.03558,0.02994,-0.0518,0.0220,1.0000 15.250,1.7590,0.03793,0.03236,-0.0514,0.0210,1.0000 15.500,1.7612,0.04034,0.03486,-0.0511,0.0203,1.0000 15.750,1.7611,0.04309,0.03768,-0.0510,0.0191,1.0000 16.000,1.7595,0.04613,0.04079,-0.0511,0.0182,1.0000 16.250,1.7557,0.04953,0.04426,-0.0514,0.0172,1.0000 16.500,1.7527,0.05294,0.04776,-0.0518,0.0163,1.0000 16.750,1.7488,0.05662,0.05153,-0.0525,0.0154,1.0000 17.000,1.7421,0.06078,0.05578,-0.0535,0.0144,1.0000 17.250,1.7349,0.06519,0.06028,-0.0547,0.0136,1.0000 17.500,1.7288,0.06952,0.06471,-0.0559,0.0129,1.0000 17.750,1.7198,0.07445,0.06973,-0.0576,0.0118,1.0000 18.000,1.7088,0.07978,0.07514,-0.0594,0.0108,1.0000 18.250,1.6991,0.08505,0.08051,-0.0614,0.0100,1.0000 18.500,1.6850,0.09117,0.08673,-0.0639,0.0087,1.0000 18.750,1.6723,0.09717,0.09283,-0.0664,0.0079,1.0000 19.000,1.6562,0.10394,0.09970,-0.0694,0.0066,1.0000 19.250,1.6414,0.11062,0.10648,-0.0726,0.0057,1.0000