Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-sd8020-il-100000-n5 Airfoil,sd8020-il Reynolds number,100000 Ncrit,5 Mach,0 Max Cl/Cd,36.3257 Max Cl/Cd alpha,5.5 Url,http://airfoiltools.com/polar/csv?polar=xf-sd8020-il-100000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -12.750,-0.7123,0.10913,0.10395,-0.0039,1.0000,0.0284 -12.500,-0.8415,0.07300,0.06746,-0.0286,1.0000,0.0245 -12.250,-0.8673,0.06553,0.05973,-0.0340,1.0000,0.0242 -11.750,-0.9034,0.05568,0.04947,-0.0380,1.0000,0.0242 -11.500,-0.9174,0.05196,0.04556,-0.0378,1.0000,0.0245 -11.250,-0.9280,0.04887,0.04228,-0.0365,1.0000,0.0247 -11.000,-0.9350,0.04633,0.03959,-0.0344,1.0000,0.0251 -10.750,-0.9392,0.04411,0.03720,-0.0319,1.0000,0.0257 -10.500,-0.9381,0.04204,0.03495,-0.0297,1.0000,0.0265 -10.250,-0.9338,0.04018,0.03289,-0.0277,1.0000,0.0279 -10.000,-0.9276,0.03819,0.03062,-0.0257,1.0000,0.0295 -9.750,-0.9188,0.03611,0.02818,-0.0237,1.0000,0.0313 -9.500,-0.9073,0.03398,0.02576,-0.0218,1.0000,0.0326 -9.250,-0.8953,0.03208,0.02378,-0.0202,1.0000,0.0342 -9.000,-0.8812,0.03075,0.02236,-0.0186,1.0000,0.0365 -8.750,-0.8656,0.02944,0.02083,-0.0170,1.0000,0.0397 -8.500,-0.8491,0.02801,0.01917,-0.0153,1.0000,0.0426 -8.250,-0.8346,0.02661,0.01776,-0.0136,1.0000,0.0456 -8.000,-0.8182,0.02545,0.01649,-0.0119,1.0000,0.0494 -7.750,-0.8017,0.02431,0.01524,-0.0101,1.0000,0.0550 -7.500,-0.7844,0.02338,0.01426,-0.0085,1.0000,0.0623 -7.250,-0.7677,0.02237,0.01323,-0.0068,1.0000,0.0701 -7.000,-0.7497,0.02151,0.01228,-0.0052,1.0000,0.0802 -6.750,-0.7312,0.02075,0.01149,-0.0037,1.0000,0.0925 -6.500,-0.7127,0.02003,0.01078,-0.0023,1.0000,0.1068 -6.250,-0.6938,0.01935,0.01013,-0.0008,1.0000,0.1228 -6.000,-0.6746,0.01870,0.00950,0.0006,1.0000,0.1399 -5.750,-0.6550,0.01810,0.00888,0.0020,1.0000,0.1589 -5.500,-0.6357,0.01750,0.00835,0.0034,1.0000,0.1789 -5.250,-0.6157,0.01698,0.00785,0.0048,1.0000,0.2017 -5.000,-0.5961,0.01645,0.00741,0.0062,1.0000,0.2268 -4.750,-0.5763,0.01596,0.00700,0.0076,1.0000,0.2547 -4.500,-0.5565,0.01551,0.00664,0.0090,1.0000,0.2852 -4.250,-0.5366,0.01509,0.00629,0.0104,1.0000,0.3176 -4.000,-0.5169,0.01469,0.00602,0.0119,1.0000,0.3524 -3.500,-0.4775,0.01398,0.00557,0.0149,1.0000,0.4274 -3.250,-0.4578,0.01367,0.00538,0.0165,1.0000,0.4667 -3.000,-0.4382,0.01340,0.00526,0.0181,1.0000,0.5073 -2.750,-0.4185,0.01317,0.00517,0.0197,1.0000,0.5484 -2.500,-0.3987,0.01297,0.00513,0.0213,1.0000,0.5895 -2.250,-0.3786,0.01282,0.00512,0.0229,1.0000,0.6302 -2.000,-0.3550,0.01272,0.00514,0.0239,0.9986,0.6719 -1.750,-0.3159,0.01268,0.00522,0.0217,0.9901,0.7179 -1.500,-0.2752,0.01268,0.00533,0.0194,0.9820,0.7601 -1.250,-0.2352,0.01267,0.00538,0.0173,0.9725,0.7985 -1.000,-0.1929,0.01270,0.00547,0.0148,0.9630,0.8321 -0.750,-0.1455,0.01276,0.00556,0.0113,0.9545,0.8609 -0.500,-0.0987,0.01280,0.00562,0.0079,0.9440,0.8852 -0.250,-0.0491,0.01285,0.00567,0.0039,0.9330,0.9039 0.000,0.0000,0.01286,0.00568,0.0000,0.9198,0.9198 0.250,0.0493,0.01285,0.00567,-0.0039,0.9039,0.9330 0.500,0.0988,0.01280,0.00562,-0.0079,0.8852,0.9441 0.750,0.1456,0.01276,0.00556,-0.0113,0.8610,0.9546 1.000,0.1929,0.01270,0.00547,-0.0148,0.8322,0.9630 1.250,0.2352,0.01267,0.00538,-0.0173,0.7985,0.9724 1.500,0.2751,0.01268,0.00532,-0.0194,0.7601,0.9819 1.750,0.3159,0.01268,0.00522,-0.0217,0.7177,0.9901 2.000,0.3552,0.01272,0.00514,-0.0239,0.6723,0.9987 2.250,0.3786,0.01282,0.00512,-0.0229,0.6307,1.0000 2.500,0.3987,0.01297,0.00513,-0.0213,0.5897,1.0000 2.750,0.4185,0.01316,0.00517,-0.0197,0.5485,1.0000 3.000,0.4382,0.01340,0.00526,-0.0181,0.5075,1.0000 3.250,0.4578,0.01367,0.00538,-0.0165,0.4669,1.0000 3.500,0.4775,0.01398,0.00557,-0.0149,0.4273,1.0000 4.000,0.5169,0.01469,0.00602,-0.0119,0.3525,1.0000 4.250,0.5366,0.01509,0.00629,-0.0104,0.3178,1.0000 4.500,0.5565,0.01551,0.00664,-0.0090,0.2854,1.0000 4.750,0.5763,0.01596,0.00700,-0.0076,0.2546,1.0000 5.000,0.5961,0.01645,0.00741,-0.0062,0.2268,1.0000 5.250,0.6157,0.01698,0.00785,-0.0048,0.2016,1.0000 5.500,0.6357,0.01750,0.00835,-0.0034,0.1789,1.0000 5.750,0.6550,0.01810,0.00888,-0.0020,0.1587,1.0000 6.000,0.6746,0.01870,0.00950,-0.0006,0.1396,1.0000 6.250,0.6938,0.01934,0.01013,0.0008,0.1224,1.0000 6.500,0.7126,0.02003,0.01079,0.0023,0.1067,1.0000 6.750,0.7312,0.02076,0.01149,0.0037,0.0924,1.0000 7.000,0.7497,0.02152,0.01228,0.0052,0.0801,1.0000 7.250,0.7676,0.02238,0.01323,0.0068,0.0701,1.0000 7.500,0.7844,0.02339,0.01426,0.0086,0.0625,1.0000 7.750,0.8017,0.02431,0.01525,0.0101,0.0552,1.0000 8.000,0.8182,0.02545,0.01648,0.0118,0.0497,1.0000 8.250,0.8346,0.02661,0.01776,0.0135,0.0457,1.0000 8.500,0.8494,0.02798,0.01915,0.0153,0.0427,1.0000 8.750,0.8656,0.02946,0.02084,0.0170,0.0400,1.0000 9.000,0.8813,0.03075,0.02236,0.0185,0.0366,1.0000 9.250,0.8955,0.03208,0.02379,0.0201,0.0343,1.0000 9.500,0.9076,0.03394,0.02573,0.0218,0.0327,1.0000 9.750,0.9190,0.03610,0.02817,0.0237,0.0314,1.0000 10.000,0.9279,0.03823,0.03065,0.0256,0.0298,1.0000 10.250,0.9341,0.04018,0.03289,0.0277,0.0280,1.0000 10.500,0.9382,0.04209,0.03502,0.0297,0.0266,1.0000 10.750,0.9393,0.04415,0.03725,0.0318,0.0257,1.0000 11.000,0.9352,0.04636,0.03961,0.0344,0.0251,1.0000 11.250,0.9281,0.04893,0.04235,0.0365,0.0247,1.0000 11.500,0.9178,0.05198,0.04557,0.0377,0.0244,1.0000 11.750,0.9036,0.05574,0.04953,0.0379,0.0242,1.0000 12.250,0.8677,0.06557,0.05979,0.0338,0.0242,1.0000 12.500,0.8432,0.07281,0.06726,0.0287,0.0244,1.0000 12.750,0.7123,0.10943,0.10425,0.0037,0.0290,1.0000