Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-usa40-il-100000 Airfoil,usa40-il Reynolds number,100000 Ncrit,9 Mach,0 Max Cl/Cd,50.0831 Max Cl/Cd alpha,8.5 Url,http://airfoiltools.com/polar/csv?polar=xf-usa40-il-100000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -8.000,-0.2872,0.09644,0.09162,-0.0319,1.0000,0.1427 -7.750,-0.3340,0.09707,0.09247,-0.0298,1.0000,0.1456 -7.500,-0.3872,0.09761,0.09321,-0.0284,1.0000,0.1463 -7.250,-0.3827,0.09409,0.08975,-0.0247,1.0000,0.1476 -7.000,-0.3624,0.09156,0.08723,-0.0203,1.0000,0.1498 -6.750,-0.3683,0.09035,0.08609,-0.0170,1.0000,0.1520 -6.500,-0.3810,0.08927,0.08510,-0.0145,1.0000,0.1548 -6.250,-0.3876,0.08364,0.07951,-0.0300,0.9931,0.1639 -6.000,-0.3472,0.07901,0.07475,-0.0435,0.9828,0.1787 -5.750,-0.3208,0.07500,0.07081,-0.0420,0.9757,0.1817 -5.500,-0.2831,0.07220,0.06800,-0.0432,0.9701,0.1875 -5.250,-0.2324,0.04064,0.03432,-0.0884,0.9574,0.1045 -5.000,-0.1908,0.03682,0.02998,-0.0930,0.9483,0.1017 -4.750,-0.1412,0.03340,0.02600,-0.0985,0.9422,0.1019 -4.500,-0.1011,0.03088,0.02305,-0.1016,0.9325,0.1020 -4.250,-0.0505,0.02866,0.02033,-0.1059,0.9263,0.1030 -4.000,-0.0123,0.02674,0.01835,-0.1082,0.9165,0.1061 -3.750,0.0371,0.02536,0.01687,-0.1119,0.9101,0.1124 -3.500,0.0778,0.02404,0.01534,-0.1139,0.9004,0.1178 -3.250,0.1226,0.02273,0.01412,-0.1165,0.8931,0.1272 -3.000,0.1581,0.02179,0.01327,-0.1174,0.8820,0.1404 -2.750,0.2009,0.02070,0.01224,-0.1194,0.8742,0.1634 -2.500,0.2322,0.02000,0.01169,-0.1195,0.8611,0.1972 -2.250,0.2672,0.01879,0.01091,-0.1204,0.8508,0.2709 -2.000,0.2995,0.01785,0.01048,-0.1206,0.8390,0.3757 -1.750,0.3264,0.01728,0.01028,-0.1198,0.8248,0.4646 -1.500,0.3525,0.01685,0.01022,-0.1182,0.8112,0.5624 -1.250,0.3778,0.01664,0.01018,-0.1161,0.7983,0.6492 -1.000,0.4010,0.01657,0.01014,-0.1135,0.7841,0.7144 -0.750,0.4201,0.01656,0.01013,-0.1102,0.7682,0.7684 -0.500,0.4365,0.01641,0.00998,-0.1062,0.7524,0.8158 -0.250,0.4526,0.01612,0.00966,-0.1024,0.7367,0.8598 0.000,0.4706,0.01574,0.00924,-0.0990,0.7210,0.9043 0.250,0.5085,0.01537,0.00877,-0.0998,0.7034,0.9625 0.500,0.5456,0.01538,0.00854,-0.1018,0.6851,1.0000 0.750,0.5769,0.01553,0.00846,-0.1026,0.6675,1.0000 1.000,0.6077,0.01573,0.00844,-0.1033,0.6501,1.0000 1.250,0.6379,0.01597,0.00847,-0.1038,0.6333,1.0000 1.500,0.6678,0.01625,0.00854,-0.1042,0.6173,1.0000 1.750,0.6976,0.01653,0.00862,-0.1045,0.6023,1.0000 2.000,0.7265,0.01684,0.00876,-0.1047,0.5875,1.0000 2.250,0.7543,0.01719,0.00900,-0.1047,0.5727,1.0000 2.500,0.7821,0.01755,0.00925,-0.1047,0.5592,1.0000 2.750,0.8107,0.01790,0.00944,-0.1048,0.5474,1.0000 3.000,0.8387,0.01826,0.00968,-0.1048,0.5354,1.0000 3.250,0.8655,0.01868,0.01006,-0.1046,0.5237,1.0000 3.500,0.8941,0.01906,0.01027,-0.1047,0.5139,1.0000 3.750,0.9205,0.01949,0.01070,-0.1045,0.5029,1.0000 4.000,0.9478,0.01995,0.01108,-0.1044,0.4935,1.0000 4.250,0.9750,0.02036,0.01142,-0.1042,0.4837,1.0000 4.500,1.0010,0.02086,0.01191,-0.1039,0.4740,1.0000 4.750,1.0287,0.02128,0.01221,-0.1038,0.4652,1.0000 5.000,1.0535,0.02182,0.01280,-0.1034,0.4555,1.0000 5.250,1.0818,0.02218,0.01299,-0.1033,0.4463,1.0000 5.500,1.1046,0.02263,0.01352,-0.1025,0.4350,1.0000 5.750,1.1305,0.02301,0.01380,-0.1021,0.4248,1.0000 6.000,1.1551,0.02336,0.01414,-0.1016,0.4144,1.0000 6.250,1.1792,0.02385,0.01465,-0.1010,0.4050,1.0000 6.500,1.2048,0.02419,0.01490,-0.1005,0.3956,1.0000 6.750,1.2272,0.02470,0.01550,-0.0997,0.3864,1.0000 7.000,1.2528,0.02505,0.01578,-0.0993,0.3780,1.0000 7.250,1.2750,0.02562,0.01647,-0.0985,0.3700,1.0000 7.500,1.2991,0.02604,0.01689,-0.0980,0.3623,1.0000 7.750,1.3217,0.02653,0.01743,-0.0972,0.3543,1.0000 8.000,1.3438,0.02688,0.01783,-0.0963,0.3457,1.0000 8.250,1.3655,0.02731,0.01830,-0.0954,0.3376,1.0000 8.500,1.3863,0.02768,0.01873,-0.0944,0.3290,1.0000 8.750,1.4075,0.02812,0.01920,-0.0934,0.3215,1.0000 9.000,1.4266,0.02859,0.01981,-0.0922,0.3137,1.0000 9.250,1.4477,0.02895,0.02014,-0.0912,0.3063,1.0000 9.500,1.4635,0.02948,0.02086,-0.0895,0.2979,1.0000 9.750,1.4848,0.02983,0.02115,-0.0886,0.2914,1.0000 10.000,1.4978,0.03050,0.02207,-0.0866,0.2835,1.0000 10.250,1.5152,0.03090,0.02248,-0.0852,0.2766,1.0000 10.500,1.5274,0.03161,0.02339,-0.0831,0.2692,1.0000 10.750,1.5410,0.03219,0.02406,-0.0813,0.2626,1.0000 11.000,1.5510,0.03288,0.02486,-0.0790,0.2557,1.0000 11.250,1.5583,0.03366,0.02579,-0.0764,0.2487,1.0000 11.500,1.5670,0.03443,0.02661,-0.0741,0.2425,1.0000 11.750,1.5713,0.03555,0.02794,-0.0716,0.2352,1.0000 12.000,1.5771,0.03654,0.02895,-0.0694,0.2287,1.0000 12.250,1.5790,0.03804,0.03069,-0.0672,0.2208,1.0000 12.500,1.5807,0.03950,0.03220,-0.0652,0.2134,1.0000 12.750,1.5791,0.04149,0.03440,-0.0635,0.2038,1.0000 13.000,1.5766,0.04371,0.03673,-0.0620,0.1948,1.0000 13.250,1.5709,0.04636,0.03945,-0.0608,0.1852,1.0000 13.500,1.5635,0.04955,0.04279,-0.0601,0.1744,1.0000 13.750,1.5524,0.05334,0.04670,-0.0597,0.1633,1.0000 14.000,1.5376,0.05783,0.05127,-0.0598,0.1523,1.0000 14.250,1.5189,0.06308,0.05658,-0.0605,0.1422,1.0000 14.500,1.4970,0.06906,0.06263,-0.0616,0.1328,1.0000 14.750,1.4739,0.07557,0.06922,-0.0632,0.1243,1.0000 15.000,1.4491,0.08258,0.07628,-0.0652,0.1178,1.0000 15.250,1.4252,0.08969,0.08343,-0.0673,0.1112,1.0000