Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-usa28-il-50000 Airfoil,usa28-il Reynolds number,50000 Ncrit,9 Mach,0 Max Cl/Cd,21.5894 Max Cl/Cd alpha,11.5 Url,http://www.airfoiltools.com/polar/csv?polar=xf-usa28-il-50000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -9.500,-0.3497,0.11706,0.10979,-0.0302,1.0000,0.2735 -9.250,-0.3334,0.11303,0.10574,-0.0291,1.0000,0.2801 -9.000,-0.3559,0.11276,0.10563,-0.0285,1.0000,0.2870 -8.750,-0.3360,0.10804,0.10089,-0.0273,1.0000,0.2933 -8.500,-0.3513,0.10709,0.10006,-0.0260,1.0000,0.3016 -8.250,-0.3452,0.10360,0.09662,-0.0247,1.0000,0.3067 -8.000,-0.3481,0.10152,0.09461,-0.0230,1.0000,0.3149 -7.750,-0.3854,0.10194,0.09525,-0.0202,1.0000,0.3183 -7.500,-0.3712,0.09755,0.09087,-0.0190,1.0000,0.3213 -7.250,-0.3730,0.09500,0.08837,-0.0169,1.0000,0.3243 -7.000,-0.5159,0.08394,0.07772,-0.0254,1.0000,0.1967 -6.750,-0.5197,0.08048,0.07427,-0.0238,1.0000,0.1908 -6.500,-0.5869,0.06393,0.05732,-0.0336,1.0000,0.1639 -6.250,-0.5923,0.05913,0.05231,-0.0330,1.0000,0.1636 -6.000,-0.5970,0.05395,0.04674,-0.0326,1.0000,0.1637 -5.750,-0.5975,0.04917,0.04144,-0.0317,1.0000,0.1641 -5.500,-0.5856,0.04742,0.03976,-0.0298,1.0000,0.1672 -5.250,-0.5763,0.04495,0.03706,-0.0282,1.0000,0.1707 -5.000,-0.5679,0.04203,0.03365,-0.0267,1.0000,0.1763 -4.750,-0.5569,0.03978,0.03107,-0.0251,1.0000,0.1831 -4.500,-0.5435,0.03820,0.02925,-0.0233,1.0000,0.1917 -4.250,-0.5294,0.03656,0.02742,-0.0216,1.0000,0.2010 -4.000,-0.5150,0.03555,0.02629,-0.0197,1.0000,0.2157 -3.750,-0.5002,0.03497,0.02572,-0.0177,1.0000,0.2343 -3.500,-0.4856,0.03453,0.02527,-0.0155,1.0000,0.2596 -3.250,-0.4716,0.03489,0.02571,-0.0130,1.0000,0.2895 -3.000,-0.4578,0.03545,0.02629,-0.0104,1.0000,0.3199 -2.750,-0.4439,0.03594,0.02686,-0.0079,1.0000,0.3446 -2.500,-0.4300,0.03600,0.02681,-0.0058,1.0000,0.3689 -2.250,-0.4160,0.03597,0.02674,-0.0038,1.0000,0.3895 -2.000,-0.4026,0.03594,0.02658,-0.0018,1.0000,0.4144 -1.750,-0.3892,0.03567,0.02635,0.0003,1.0000,0.4346 -1.500,-0.3738,0.03522,0.02578,0.0017,1.0000,0.4514 -1.250,-0.3563,0.03471,0.02508,0.0025,1.0000,0.4649 -1.000,-0.3382,0.03428,0.02444,0.0031,1.0000,0.4787 -0.750,-0.3101,0.03423,0.02429,0.0018,0.9958,0.4970 -0.500,-0.2594,0.03477,0.02461,-0.0036,0.9797,0.5247 -0.250,-0.2064,0.03511,0.02478,-0.0095,0.9648,0.5560 0.000,-0.1536,0.03539,0.02504,-0.0152,0.9505,0.5906 0.250,-0.1034,0.03565,0.02539,-0.0204,0.9367,0.6274 0.500,-0.0547,0.03591,0.02582,-0.0252,0.9226,0.6689 0.750,-0.0051,0.03600,0.02629,-0.0301,0.9085,0.7265 1.000,0.1217,0.03671,0.02745,-0.0515,0.8931,1.0000 1.250,0.1625,0.03756,0.02800,-0.0552,0.8779,1.0000 1.500,0.1997,0.03839,0.02860,-0.0581,0.8626,1.0000 1.750,0.2332,0.03925,0.02927,-0.0601,0.8477,1.0000 2.000,0.2645,0.04012,0.02998,-0.0616,0.8331,1.0000 2.250,0.2941,0.04102,0.03075,-0.0628,0.8192,1.0000 2.500,0.3256,0.04193,0.03154,-0.0642,0.8064,1.0000 2.750,0.3639,0.04272,0.03224,-0.0664,0.7952,1.0000 3.000,0.3777,0.04384,0.03329,-0.0652,0.7819,1.0000 3.250,0.3938,0.04504,0.03443,-0.0645,0.7700,1.0000 3.500,0.4268,0.04596,0.03530,-0.0658,0.7609,1.0000 3.750,0.4400,0.04724,0.03656,-0.0647,0.7500,1.0000 4.000,0.4511,0.04869,0.03798,-0.0635,0.7403,1.0000 4.250,0.4847,0.04959,0.03887,-0.0648,0.7322,1.0000 4.500,0.4825,0.05147,0.04073,-0.0622,0.7226,1.0000 4.750,0.5193,0.05233,0.04162,-0.0637,0.7150,1.0000 5.000,0.5123,0.05444,0.04372,-0.0609,0.7061,1.0000 5.250,0.5408,0.05559,0.04490,-0.0615,0.6984,1.0000 5.500,0.5393,0.05765,0.04697,-0.0595,0.6903,1.0000 5.750,0.5645,0.05895,0.04831,-0.0597,0.6824,1.0000 6.000,0.5659,0.06099,0.05039,-0.0581,0.6741,1.0000 6.250,0.5859,0.06250,0.05195,-0.0579,0.6658,1.0000 6.500,0.5946,0.06436,0.05386,-0.0569,0.6571,1.0000 6.750,0.6053,0.06622,0.05578,-0.0560,0.6480,1.0000 7.000,0.6429,0.06701,0.05670,-0.0568,0.6375,1.0000 7.250,0.6284,0.06985,0.05956,-0.0544,0.6282,1.0000 7.500,0.6492,0.07134,0.06115,-0.0540,0.6172,1.0000 7.750,0.6894,0.07189,0.06184,-0.0546,0.6049,1.0000 8.000,0.6693,0.07519,0.06517,-0.0522,0.5948,1.0000 8.250,0.6831,0.07694,0.06702,-0.0514,0.5821,1.0000 8.500,0.7046,0.07834,0.06855,-0.0509,0.5693,1.0000 8.750,0.7305,0.07940,0.06976,-0.0504,0.5556,1.0000 9.000,0.7398,0.08143,0.07190,-0.0494,0.5429,1.0000 9.250,0.7412,0.08392,0.07448,-0.0482,0.5295,1.0000 9.500,0.7445,0.08650,0.07718,-0.0473,0.5169,1.0000 9.750,0.7578,0.08827,0.07908,-0.0463,0.5019,1.0000 10.000,0.7679,0.09042,0.08135,-0.0454,0.4881,1.0000 10.250,0.7813,0.09217,0.08324,-0.0444,0.4724,1.0000 10.500,0.7936,0.09401,0.08522,-0.0433,0.4569,1.0000 10.750,0.8111,0.09519,0.08660,-0.0419,0.4393,1.0000 11.000,0.8701,0.09146,0.08324,-0.0387,0.4167,1.0000 11.250,0.9038,0.08813,0.08023,-0.0345,0.3884,1.0000 11.500,1.0758,0.04983,0.04051,-0.0102,0.1806,1.0000 11.750,1.0705,0.05291,0.04320,-0.0077,0.1562,1.0000 12.000,1.0761,0.05535,0.04544,-0.0056,0.1377,1.0000 12.250,1.0928,0.05719,0.04717,-0.0038,0.1234,1.0000 12.500,1.1290,0.05868,0.04867,-0.0024,0.1115,1.0000 12.750,1.1681,0.06078,0.05076,-0.0019,0.1028,1.0000 13.000,1.1800,0.06355,0.05380,-0.0007,0.0984,1.0000 13.250,1.2066,0.06652,0.05688,-0.0002,0.0946,1.0000 13.500,1.2301,0.07078,0.06130,0.0000,0.0925,1.0000 13.750,1.2190,0.07449,0.06536,0.0020,0.0922,1.0000 14.000,1.2036,0.07850,0.06968,0.0037,0.0920,1.0000 14.250,1.1847,0.08282,0.07428,0.0048,0.0920,1.0000 14.500,1.1630,0.08761,0.07933,0.0054,0.0921,1.0000 14.750,1.1456,0.09269,0.08461,0.0053,0.0925,1.0000 15.000,1.0397,0.10514,0.09765,-0.0010,0.0979,1.0000 15.250,0.9802,0.11832,0.11100,-0.0085,0.1017,1.0000