Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-e428-il-1000000 Airfoil,e428-il Reynolds number,1000000 Ncrit,9 Mach,0 Max Cl/Cd,91.0923 Max Cl/Cd alpha,8 Url,http://airfoiltools.com/polar/csv?polar=xf-e428-il-1000000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -16.000,-1.0739,0.08662,0.08323,-0.0089,1.0000,0.0093 -15.750,-1.0871,0.08097,0.07752,-0.0119,1.0000,0.0094 -15.500,-1.1015,0.07526,0.07173,-0.0149,1.0000,0.0094 -15.250,-1.1166,0.06948,0.06586,-0.0180,1.0000,0.0093 -15.000,-1.1316,0.06358,0.05987,-0.0213,1.0000,0.0093 -14.750,-1.1480,0.05744,0.05363,-0.0248,1.0000,0.0093 -14.500,-1.1629,0.05136,0.04744,-0.0284,1.0000,0.0093 -14.250,-1.1790,0.04498,0.04092,-0.0327,1.0000,0.0093 -14.000,-1.1861,0.03998,0.03580,-0.0362,1.0000,0.0093 -13.750,-1.1948,0.03521,0.03090,-0.0396,1.0000,0.0094 -13.500,-1.2015,0.03157,0.02714,-0.0416,1.0000,0.0094 -13.250,-1.2085,0.02897,0.02442,-0.0415,1.0000,0.0094 -13.000,-1.2138,0.02727,0.02263,-0.0392,1.0000,0.0095 -12.750,-1.2098,0.02593,0.02121,-0.0372,1.0000,0.0096 -12.500,-1.2005,0.02464,0.01983,-0.0357,1.0000,0.0097 -12.250,-1.1876,0.02351,0.01863,-0.0345,1.0000,0.0098 -12.000,-1.1728,0.02244,0.01748,-0.0334,1.0000,0.0100 -11.750,-1.1563,0.02145,0.01642,-0.0324,1.0000,0.0101 -11.500,-1.1382,0.02055,0.01544,-0.0314,1.0000,0.0102 -11.250,-1.1192,0.01969,0.01451,-0.0305,1.0000,0.0104 -11.000,-1.0991,0.01889,0.01364,-0.0297,1.0000,0.0106 -10.750,-1.0781,0.01815,0.01283,-0.0289,1.0000,0.0107 -10.500,-1.0563,0.01748,0.01211,-0.0282,1.0000,0.0109 -10.250,-1.0340,0.01685,0.01141,-0.0275,1.0000,0.0111 -10.000,-1.0139,0.01586,0.01033,-0.0266,1.0000,0.0115 -9.750,-0.9916,0.01515,0.00957,-0.0258,1.0000,0.0118 -9.500,-0.9684,0.01456,0.00892,-0.0251,1.0000,0.0121 -9.250,-0.9447,0.01403,0.00835,-0.0245,1.0000,0.0125 -9.000,-0.9206,0.01355,0.00782,-0.0238,1.0000,0.0129 -8.750,-0.8963,0.01311,0.00734,-0.0231,1.0000,0.0133 -8.500,-0.8719,0.01268,0.00687,-0.0225,1.0000,0.0137 -8.250,-0.8479,0.01219,0.00634,-0.0217,1.0000,0.0146 -8.000,-0.8235,0.01177,0.00590,-0.0210,1.0000,0.0157 -7.750,-0.7994,0.01131,0.00544,-0.0202,1.0000,0.0186 -7.500,-0.7782,0.01042,0.00476,-0.0192,1.0000,0.0466 -7.250,-0.7537,0.01005,0.00444,-0.0185,1.0000,0.0566 -7.000,-0.7293,0.00969,0.00412,-0.0178,1.0000,0.0652 -6.750,-0.7051,0.00930,0.00382,-0.0170,1.0000,0.0772 -6.500,-0.6809,0.00895,0.00357,-0.0162,1.0000,0.0924 -6.250,-0.6562,0.00869,0.00337,-0.0155,1.0000,0.1036 -6.000,-0.6314,0.00847,0.00318,-0.0147,1.0000,0.1127 -5.750,-0.6068,0.00827,0.00301,-0.0140,1.0000,0.1206 -5.500,-0.5823,0.00807,0.00285,-0.0131,1.0000,0.1287 -5.250,-0.5497,0.00789,0.00271,-0.0140,0.9984,0.1377 -5.000,-0.5118,0.00770,0.00258,-0.0161,0.9947,0.1501 -4.750,-0.4755,0.00751,0.00245,-0.0177,0.9897,0.1615 -4.500,-0.4356,0.00734,0.00233,-0.0201,0.9834,0.1714 -4.250,-0.3970,0.00720,0.00221,-0.0221,0.9714,0.1805 -4.000,-0.3578,0.00705,0.00210,-0.0243,0.9495,0.1918 -3.750,-0.3243,0.00698,0.00196,-0.0250,0.9049,0.2000 -3.500,-0.2985,0.00703,0.00187,-0.0242,0.8567,0.2074 -3.250,-0.2727,0.00707,0.00177,-0.0234,0.8168,0.2139 -3.000,-0.2463,0.00709,0.00169,-0.0227,0.7820,0.2207 -2.500,-0.1919,0.00710,0.00155,-0.0219,0.7271,0.2340 -2.250,-0.1645,0.00711,0.00149,-0.0215,0.7020,0.2412 -2.000,-0.1369,0.00709,0.00142,-0.0212,0.6795,0.2502 -1.750,-0.1092,0.00709,0.00137,-0.0209,0.6569,0.2574 -1.500,-0.0816,0.00709,0.00131,-0.0206,0.6329,0.2653 -1.250,-0.0538,0.00709,0.00127,-0.0203,0.6104,0.2738 -1.000,-0.0261,0.00708,0.00123,-0.0201,0.5883,0.2837 -0.750,0.0017,0.00709,0.00119,-0.0198,0.5646,0.2948 -0.500,0.0293,0.00709,0.00116,-0.0195,0.5383,0.3093 0.000,0.0841,0.00705,0.00113,-0.0190,0.4847,0.3575 0.250,0.1111,0.00701,0.00113,-0.0187,0.4572,0.3970 0.500,0.1380,0.00698,0.00114,-0.0184,0.4268,0.4424 0.750,0.1648,0.00699,0.00118,-0.0180,0.3903,0.4876 1.000,0.1913,0.00709,0.00123,-0.0177,0.3438,0.5276 1.250,0.2178,0.00723,0.00130,-0.0173,0.2991,0.5625 1.500,0.2446,0.00732,0.00139,-0.0169,0.2706,0.5977 1.750,0.2717,0.00739,0.00147,-0.0166,0.2519,0.6305 2.000,0.2989,0.00744,0.00156,-0.0162,0.2381,0.6600 2.250,0.3261,0.00750,0.00165,-0.0159,0.2258,0.6886 2.500,0.3532,0.00755,0.00174,-0.0155,0.2155,0.7172 2.750,0.3802,0.00757,0.00184,-0.0150,0.2066,0.7485 3.000,0.4067,0.00761,0.00194,-0.0145,0.1978,0.7828 3.250,0.4330,0.00761,0.00205,-0.0139,0.1917,0.8202 3.500,0.4586,0.00761,0.00215,-0.0131,0.1852,0.8608 3.750,0.4836,0.00760,0.00227,-0.0121,0.1777,0.9135 4.000,0.5268,0.00765,0.00238,-0.0151,0.1714,0.9695 4.250,0.5678,0.00785,0.00252,-0.0178,0.1641,1.0000 4.500,0.5946,0.00796,0.00263,-0.0173,0.1607,1.0000 4.750,0.6213,0.00810,0.00274,-0.0169,0.1560,1.0000 5.000,0.6478,0.00828,0.00289,-0.0165,0.1511,1.0000 5.250,0.6746,0.00843,0.00303,-0.0161,0.1471,1.0000 5.500,0.7017,0.00856,0.00316,-0.0157,0.1430,1.0000 5.750,0.7284,0.00874,0.00330,-0.0153,0.1380,1.0000 6.000,0.7551,0.00893,0.00348,-0.0149,0.1336,1.0000 6.250,0.7822,0.00906,0.00362,-0.0146,0.1300,1.0000 6.500,0.8090,0.00925,0.00378,-0.0142,0.1250,1.0000 6.750,0.8356,0.00946,0.00397,-0.0138,0.1200,1.0000 7.000,0.8625,0.00962,0.00413,-0.0135,0.1157,1.0000 7.250,0.8888,0.00986,0.00433,-0.0130,0.1091,1.0000 7.500,0.9155,0.01006,0.00453,-0.0127,0.1036,1.0000 7.750,0.9415,0.01034,0.00476,-0.0123,0.0957,1.0000 8.000,0.9674,0.01062,0.00501,-0.0118,0.0877,1.0000 8.250,0.9931,0.01094,0.00529,-0.0114,0.0795,1.0000 8.500,1.0184,0.01130,0.00561,-0.0109,0.0720,1.0000 8.750,1.0434,0.01169,0.00596,-0.0103,0.0655,1.0000 9.000,1.0686,0.01204,0.00630,-0.0099,0.0610,1.0000 9.250,1.0935,0.01243,0.00668,-0.0093,0.0568,1.0000 9.500,1.1187,0.01277,0.00702,-0.0088,0.0537,1.0000 9.750,1.1430,0.01321,0.00745,-0.0082,0.0499,1.0000 10.000,1.1680,0.01353,0.00779,-0.0077,0.0468,1.0000 10.250,1.1918,0.01400,0.00825,-0.0071,0.0422,1.0000 10.500,1.2155,0.01448,0.00870,-0.0065,0.0353,1.0000 10.750,1.2361,0.01530,0.00941,-0.0055,0.0234,1.0000 11.000,1.2577,0.01598,0.01009,-0.0047,0.0208,1.0000 11.250,1.2793,0.01664,0.01078,-0.0038,0.0193,1.0000 11.500,1.3011,0.01722,0.01142,-0.0030,0.0185,1.0000 11.750,1.3219,0.01789,0.01215,-0.0020,0.0178,1.0000 12.000,1.3411,0.01868,0.01299,-0.0010,0.0171,1.0000 12.250,1.3583,0.01963,0.01401,0.0003,0.0165,1.0000 12.500,1.3776,0.02030,0.01475,0.0014,0.0162,1.0000 12.750,1.3957,0.02102,0.01555,0.0026,0.0158,1.0000 13.000,1.4124,0.02180,0.01640,0.0039,0.0154,1.0000 13.250,1.4271,0.02268,0.01734,0.0054,0.0150,1.0000 13.500,1.4396,0.02362,0.01836,0.0071,0.0147,1.0000 13.750,1.4466,0.02468,0.01950,0.0095,0.0144,1.0000 14.000,1.4461,0.02594,0.02084,0.0127,0.0142,1.0000 14.250,1.4428,0.02751,0.02251,0.0155,0.0140,1.0000 14.500,1.4365,0.02956,0.02468,0.0174,0.0138,1.0000 14.750,1.4272,0.03233,0.02758,0.0183,0.0137,1.0000 15.000,1.4194,0.03554,0.03092,0.0179,0.0136,1.0000 15.250,1.4168,0.03864,0.03412,0.0170,0.0135,1.0000 15.500,1.4093,0.04270,0.03831,0.0152,0.0134,1.0000 15.750,1.3969,0.04780,0.04355,0.0125,0.0134,1.0000 16.000,1.3808,0.05380,0.04969,0.0092,0.0133,1.0000 16.250,1.3566,0.06134,0.05739,0.0049,0.0133,1.0000 16.500,1.3294,0.06960,0.06581,0.0002,0.0133,1.0000 16.750,1.2954,0.07912,0.07549,-0.0051,0.0134,1.0000