Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-e421-il-50000-n5 Airfoil,e421-il Reynolds number,50000 Ncrit,5 Mach,0 Max Cl/Cd,20.0076 Max Cl/Cd alpha,0.75 Url,http://airfoiltools.com/polar/csv?polar=xf-e421-il-50000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -10.250,0.0344,0.12738,0.12090,-0.0821,0.8849,0.0897 -10.000,0.0504,0.12470,0.11817,-0.0877,0.8743,0.0909 -9.750,0.0653,0.12211,0.11553,-0.0933,0.8632,0.0914 -9.500,0.0930,0.11657,0.10993,-0.0964,0.8514,0.0923 -9.250,0.1221,0.11168,0.10492,-0.0999,0.8412,0.0946 -9.000,0.1417,0.10845,0.10159,-0.1031,0.8278,0.0972 -8.750,0.1550,0.10604,0.09910,-0.1063,0.8147,0.1008 -8.500,0.1613,0.10467,0.09764,-0.1101,0.8028,0.1026 -8.250,0.1656,0.10312,0.09605,-0.1121,0.7893,0.1030 -8.000,0.1871,0.09868,0.09153,-0.1128,0.7786,0.1043 -7.750,0.2032,0.09558,0.08835,-0.1137,0.7682,0.1057 -7.500,0.2110,0.09338,0.08611,-0.1143,0.7576,0.1060 -7.000,0.2179,0.08665,0.07924,-0.1169,0.7398,0.0699 -6.750,0.2239,0.08427,0.07684,-0.1171,0.7310,0.0673 -6.500,0.2163,0.08195,0.07451,-0.1183,0.7234,0.0633 -6.250,0.2222,0.08000,0.07258,-0.1181,0.7147,0.0625 -6.000,0.2301,0.07748,0.07001,-0.1197,0.7083,0.0624 -5.750,0.2330,0.07545,0.06801,-0.1205,0.7008,0.0625 -5.500,0.2381,0.07296,0.06552,-0.1224,0.6937,0.0629 -5.250,0.2496,0.06972,0.06221,-0.1261,0.6884,0.0634 -5.000,0.2557,0.06760,0.06013,-0.1269,0.6810,0.0641 -4.750,0.2672,0.06523,0.05773,-0.1285,0.6746,0.0647 -4.500,0.2859,0.06203,0.05443,-0.1321,0.6698,0.0655 -4.250,0.2998,0.05968,0.05203,-0.1342,0.6638,0.0676 -4.000,0.3179,0.05575,0.04799,-0.1393,0.6576,0.0702 -3.750,0.3465,0.05148,0.04350,-0.1453,0.6529,0.0734 -3.500,0.3917,0.04430,0.03563,-0.1564,0.6493,0.0811 -3.250,0.4016,0.04526,0.03675,-0.1533,0.6425,0.0849 -3.000,0.4334,0.04201,0.03304,-0.1577,0.6372,0.0937 -2.750,0.4680,0.03986,0.03042,-0.1608,0.6330,0.1048 -2.500,0.5042,0.03836,0.02848,-0.1632,0.6297,0.1174 -2.250,0.5150,0.03888,0.02906,-0.1610,0.6233,0.1245 -2.000,0.5390,0.03832,0.02826,-0.1612,0.6182,0.1356 -1.750,0.5699,0.03755,0.02714,-0.1623,0.6143,0.1490 -1.500,0.6046,0.03683,0.02603,-0.1636,0.6112,0.1640 -1.250,0.6146,0.03756,0.02685,-0.1613,0.6054,0.1718 -1.000,0.6332,0.03772,0.02680,-0.1605,0.6004,0.1837 -0.750,0.6587,0.03772,0.02661,-0.1604,0.5966,0.1970 -0.500,0.6885,0.03754,0.02627,-0.1607,0.5936,0.2103 -0.250,0.7151,0.03756,0.02609,-0.1607,0.5903,0.2242 0.000,0.7130,0.03903,0.02763,-0.1572,0.5835,0.2312 0.250,0.7327,0.03952,0.02798,-0.1564,0.5792,0.2438 0.500,0.7607,0.03966,0.02788,-0.1565,0.5762,0.2590 0.750,0.7927,0.03962,0.02764,-0.1571,0.5738,0.2751 1.000,0.7818,0.04185,0.02998,-0.1528,0.5672,0.2800 1.250,0.7849,0.04337,0.03151,-0.1503,0.5616,0.2895 1.500,0.8078,0.04382,0.03185,-0.1498,0.5583,0.3040 1.750,0.8377,0.04393,0.03185,-0.1500,0.5560,0.3222 2.000,0.8713,0.04387,0.03168,-0.1507,0.5542,0.3424 2.250,0.7962,0.05053,0.03860,-0.1413,0.5415,0.3298 2.500,0.8225,0.05083,0.03883,-0.1412,0.5390,0.3488 2.750,0.8529,0.05084,0.03880,-0.1413,0.5370,0.3719 3.750,0.8634,0.06028,0.04859,-0.1359,0.5169,0.4485 4.750,0.8158,0.07491,0.06431,-0.1302,0.4903,1.0000 5.000,0.8306,0.07667,0.06588,-0.1298,0.4865,1.0000 5.250,0.8534,0.07768,0.06668,-0.1295,0.4839,1.0000 5.500,0.8796,0.07837,0.06718,-0.1291,0.4820,1.0000 6.000,0.8608,0.08642,0.07525,-0.1277,0.4689,1.0000 6.250,0.8823,0.08753,0.07625,-0.1273,0.4662,1.0000 6.500,0.9080,0.08829,0.07688,-0.1270,0.4643,1.0000 6.750,0.8785,0.09427,0.08298,-0.1264,0.4551,1.0000 7.000,0.8933,0.09602,0.08466,-0.1260,0.4512,1.0000 7.250,0.9151,0.09711,0.08568,-0.1257,0.4485,1.0000 7.750,0.9120,0.10384,0.09244,-0.1251,0.4369,1.0000 8.000,0.9289,0.10538,0.09394,-0.1247,0.4333,1.0000 8.250,0.9525,0.10629,0.09479,-0.1243,0.4308,1.0000 8.500,0.9377,0.11098,0.09956,-0.1243,0.4230,1.0000 8.750,0.9484,0.11311,0.10170,-0.1241,0.4183,1.0000 9.000,0.9693,0.11425,0.10280,-0.1237,0.4152,1.0000