Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-clarkw-il-200000 Airfoil,clarkw-il Reynolds number,200000 Ncrit,9 Mach,0 Max Cl/Cd,73.5399 Max Cl/Cd alpha,4.25 Url,http://airfoiltools.com/polar/csv?polar=xf-clarkw-il-200000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -8.250,-0.4029,0.08899,0.08552,-0.0330,1.0000,0.0809 -8.000,-0.4222,0.08756,0.08417,-0.0299,1.0000,0.0820 -7.750,-0.4484,0.08639,0.08309,-0.0262,1.0000,0.0826 -7.500,-0.4725,0.08451,0.08128,-0.0244,1.0000,0.0837 -7.250,-0.4663,0.07266,0.06929,-0.0442,0.9916,0.0885 -7.000,-0.4441,0.07027,0.06690,-0.0446,0.9880,0.0896 -6.750,-0.4590,0.04211,0.03741,-0.0641,0.9761,0.0657 -6.500,-0.4330,0.03730,0.03227,-0.0664,0.9724,0.0617 -6.250,-0.4100,0.03233,0.02670,-0.0681,0.9680,0.0602 -6.000,-0.3873,0.02824,0.02192,-0.0685,0.9624,0.0587 -5.750,-0.3549,0.02564,0.01879,-0.0700,0.9591,0.0584 -5.500,-0.3180,0.02392,0.01675,-0.0721,0.9569,0.0588 -5.250,-0.2919,0.02282,0.01545,-0.0719,0.9507,0.0596 -5.000,-0.2582,0.02186,0.01431,-0.0732,0.9464,0.0614 -4.750,-0.2203,0.02087,0.01313,-0.0751,0.9437,0.0629 -4.500,-0.1801,0.01997,0.01207,-0.0775,0.9416,0.0641 -4.250,-0.1564,0.01906,0.01114,-0.0767,0.9342,0.0657 -4.000,-0.1201,0.01832,0.01044,-0.0784,0.9304,0.0684 -3.750,-0.0798,0.01770,0.00980,-0.0808,0.9278,0.0726 -3.500,-0.0366,0.01694,0.00909,-0.0838,0.9259,0.0795 -3.250,-0.0120,0.01651,0.00865,-0.0829,0.9166,0.0879 -3.000,0.0275,0.01552,0.00789,-0.0850,0.9129,0.1231 -2.750,0.0680,0.01487,0.00741,-0.0873,0.9102,0.1679 -2.500,0.0911,0.01465,0.00728,-0.0862,0.9006,0.1956 -2.250,0.1270,0.01423,0.00699,-0.0875,0.8965,0.2323 -2.000,0.1559,0.01400,0.00685,-0.0875,0.8896,0.2680 -1.750,0.1860,0.01375,0.00668,-0.0876,0.8828,0.3034 -1.500,0.2208,0.01345,0.00641,-0.0885,0.8786,0.3400 -1.250,0.2445,0.01332,0.00636,-0.0874,0.8688,0.3677 -1.000,0.2766,0.01295,0.00604,-0.0878,0.8634,0.3957 -0.750,0.3016,0.01275,0.00590,-0.0869,0.8539,0.4208 -0.500,0.3316,0.01231,0.00558,-0.0869,0.8475,0.4507 -0.250,0.3552,0.01196,0.00543,-0.0858,0.8375,0.4902 0.000,0.4029,0.01067,0.00548,-0.0883,0.8322,0.9355 0.250,0.4919,0.01051,0.00519,-0.1006,0.8257,1.0000 0.500,0.5180,0.01044,0.00501,-0.0998,0.8152,1.0000 0.750,0.5417,0.01044,0.00493,-0.0987,0.8028,1.0000 1.000,0.5664,0.01042,0.00483,-0.0978,0.7909,1.0000 1.250,0.5919,0.01040,0.00471,-0.0969,0.7790,1.0000 1.500,0.6167,0.01039,0.00462,-0.0959,0.7660,1.0000 1.750,0.6402,0.01042,0.00459,-0.0948,0.7514,1.0000 2.000,0.6639,0.01046,0.00455,-0.0936,0.7363,1.0000 2.250,0.6876,0.01050,0.00453,-0.0925,0.7205,1.0000 2.500,0.7113,0.01056,0.00451,-0.0914,0.7036,1.0000 2.750,0.7347,0.01065,0.00451,-0.0902,0.6860,1.0000 3.000,0.7576,0.01076,0.00454,-0.0889,0.6670,1.0000 3.250,0.7797,0.01090,0.00461,-0.0876,0.6459,1.0000 3.500,0.8019,0.01107,0.00467,-0.0862,0.6246,1.0000 3.750,0.8240,0.01129,0.00476,-0.0848,0.6040,1.0000 4.000,0.8451,0.01152,0.00492,-0.0833,0.5818,1.0000 4.250,0.8663,0.01178,0.00508,-0.0819,0.5607,1.0000 4.500,0.8876,0.01208,0.00526,-0.0804,0.5411,1.0000 4.750,0.9088,0.01240,0.00548,-0.0790,0.5222,1.0000 5.000,0.9296,0.01271,0.00572,-0.0776,0.5028,1.0000 5.250,0.9506,0.01304,0.00598,-0.0762,0.4846,1.0000 5.500,0.9717,0.01338,0.00625,-0.0749,0.4679,1.0000 5.750,0.9929,0.01373,0.00655,-0.0736,0.4521,1.0000 6.000,1.0146,0.01410,0.00686,-0.0724,0.4381,1.0000 6.250,1.0367,0.01449,0.00719,-0.0713,0.4255,1.0000 6.500,1.0576,0.01485,0.00752,-0.0700,0.4108,1.0000 6.750,1.0773,0.01519,0.00782,-0.0685,0.3941,1.0000 7.000,1.0968,0.01552,0.00813,-0.0670,0.3777,1.0000 7.250,1.1169,0.01585,0.00848,-0.0656,0.3634,1.0000 7.500,1.1371,0.01618,0.00885,-0.0642,0.3494,1.0000 7.750,1.1568,0.01653,0.00923,-0.0628,0.3352,1.0000 8.000,1.1758,0.01690,0.00961,-0.0613,0.3203,1.0000 8.250,1.1940,0.01728,0.01001,-0.0597,0.3044,1.0000 8.500,1.2110,0.01770,0.01045,-0.0579,0.2867,1.0000 8.750,1.2263,0.01819,0.01091,-0.0558,0.2668,1.0000 9.000,1.2407,0.01871,0.01142,-0.0537,0.2415,1.0000 9.250,1.2501,0.01943,0.01202,-0.0508,0.2104,1.0000 9.500,1.2556,0.02047,0.01286,-0.0475,0.1704,1.0000 9.750,1.2568,0.02193,0.01404,-0.0439,0.1350,1.0000 10.000,1.2581,0.02349,0.01543,-0.0405,0.1115,1.0000 10.250,1.2597,0.02510,0.01693,-0.0373,0.0966,1.0000 10.500,1.2654,0.02649,0.01832,-0.0348,0.0861,1.0000 10.750,1.2711,0.02793,0.01978,-0.0324,0.0787,1.0000 11.000,1.2745,0.02956,0.02139,-0.0300,0.0733,1.0000 11.250,1.2814,0.03104,0.02295,-0.0280,0.0688,1.0000 11.500,1.2876,0.03258,0.02453,-0.0262,0.0650,1.0000 11.750,1.2886,0.03465,0.02656,-0.0240,0.0618,1.0000 12.000,1.2971,0.03615,0.02819,-0.0226,0.0589,1.0000 12.250,1.3033,0.03784,0.02995,-0.0211,0.0562,1.0000 12.500,1.3077,0.03979,0.03189,-0.0195,0.0540,1.0000 12.750,1.3140,0.04173,0.03387,-0.0179,0.0519,1.0000 13.000,1.3209,0.04351,0.03580,-0.0167,0.0498,1.0000 13.250,1.3274,0.04536,0.03772,-0.0156,0.0479,1.0000 13.500,1.3342,0.04724,0.03959,-0.0145,0.0461,1.0000 13.750,1.3458,0.04915,0.04149,-0.0130,0.0444,1.0000 14.000,1.3507,0.05125,0.04380,-0.0120,0.0433,1.0000 14.250,1.3559,0.05341,0.04611,-0.0110,0.0419,1.0000 14.500,1.3600,0.05565,0.04848,-0.0102,0.0407,1.0000 14.750,1.3646,0.05786,0.05076,-0.0095,0.0395,1.0000 15.000,1.3758,0.05977,0.05262,-0.0086,0.0381,1.0000 15.250,1.3800,0.06264,0.05565,-0.0076,0.0372,1.0000 15.500,1.3752,0.06588,0.05915,-0.0072,0.0367,1.0000 15.750,1.3695,0.06938,0.06289,-0.0070,0.0362,1.0000 16.000,1.3628,0.07316,0.06690,-0.0071,0.0357,1.0000 16.250,1.3546,0.07721,0.07116,-0.0074,0.0352,1.0000 16.500,1.3454,0.08151,0.07567,-0.0081,0.0347,1.0000 16.750,1.3357,0.08603,0.08037,-0.0092,0.0343,1.0000 17.000,1.3261,0.09068,0.08520,-0.0105,0.0338,1.0000 17.250,1.3169,0.09536,0.09003,-0.0121,0.0334,1.0000 17.500,1.3047,0.10068,0.09552,-0.0142,0.0331,1.0000 17.750,1.2915,0.10637,0.10137,-0.0168,0.0328,1.0000 18.000,1.2755,0.11281,0.10800,-0.0200,0.0326,1.0000 18.250,1.2510,0.12121,0.11664,-0.0249,0.0327,1.0000 18.500,1.0064,0.19640,0.19267,-0.0710,0.0446,1.0000 18.750,1.0757,0.17377,0.17008,-0.0600,0.0373,1.0000