Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-usa41-il-200000 Airfoil,usa41-il Reynolds number,200000 Ncrit,9 Mach,0 Max Cl/Cd,79.3088 Max Cl/Cd alpha,6 Url,http://airfoiltools.com/polar/csv?polar=xf-usa41-il-200000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -8.250,-0.3394,0.09752,0.09398,-0.0258,1.0000,0.0345 -8.000,-0.3444,0.09609,0.09263,-0.0274,1.0000,0.0350 -7.750,-0.3506,0.09461,0.09123,-0.0280,1.0000,0.0353 -7.500,-0.3498,0.09217,0.08885,-0.0299,1.0000,0.0355 -7.250,-0.3466,0.08946,0.08619,-0.0317,1.0000,0.0356 -7.000,-0.3497,0.08478,0.08159,-0.0318,1.0000,0.0360 -6.750,-0.3498,0.08147,0.07832,-0.0275,1.0000,0.0369 -6.500,-0.3490,0.07923,0.07611,-0.0256,1.0000,0.0376 -6.250,-0.3491,0.07715,0.07406,-0.0240,1.0000,0.0386 -6.000,-0.3491,0.07497,0.07192,-0.0234,1.0000,0.0395 -5.750,-0.3472,0.07260,0.06957,-0.0236,1.0000,0.0406 -5.500,-0.3425,0.06990,0.06688,-0.0249,1.0000,0.0425 -5.250,-0.3301,0.06652,0.06348,-0.0292,1.0000,0.0451 -5.000,-0.2863,0.05931,0.05614,-0.0423,0.9959,0.0488 -4.750,-0.2587,0.05683,0.05365,-0.0443,0.9916,0.0531 -4.500,-0.2003,0.04935,0.04585,-0.0593,0.9863,0.0611 -4.250,-0.1446,0.04671,0.04275,-0.0683,0.9816,0.0726 -4.000,-0.1246,0.04208,0.03830,-0.0696,0.9761,0.0755 -3.750,-0.0799,0.03855,0.03453,-0.0758,0.9719,0.0885 -2.750,0.0834,0.02036,0.01434,-0.0900,0.9508,0.0662 -2.500,0.1255,0.01790,0.01106,-0.0919,0.9462,0.0601 -2.250,0.1690,0.01600,0.00890,-0.0949,0.9431,0.0615 -2.000,0.2045,0.01494,0.00766,-0.0959,0.9350,0.0610 -1.750,0.2459,0.01381,0.00645,-0.0982,0.9300,0.0618 -1.500,0.2799,0.01305,0.00567,-0.0990,0.9208,0.0632 -1.250,0.3191,0.01238,0.00501,-0.1008,0.9140,0.0667 -1.000,0.3498,0.01195,0.00455,-0.1008,0.9019,0.0708 -0.750,0.3802,0.01154,0.00411,-0.1008,0.8893,0.0744 -0.500,0.4093,0.01118,0.00377,-0.1005,0.8755,0.0856 -0.250,0.4370,0.01084,0.00374,-0.0999,0.8603,0.1781 0.000,0.4645,0.01075,0.00363,-0.0993,0.8438,0.2183 0.250,0.4913,0.01058,0.00344,-0.0987,0.8265,0.2438 0.500,0.5161,0.01034,0.00330,-0.0977,0.8055,0.2781 0.750,0.5387,0.00952,0.00329,-0.0966,0.7854,0.5601 1.000,0.5855,0.00869,0.00310,-0.1001,0.7622,1.0000 1.250,0.6113,0.00881,0.00301,-0.0992,0.7391,1.0000 1.500,0.6366,0.00898,0.00300,-0.0983,0.7147,1.0000 1.750,0.6619,0.00917,0.00301,-0.0975,0.6914,1.0000 2.000,0.6871,0.00939,0.00306,-0.0967,0.6693,1.0000 2.250,0.7122,0.00961,0.00314,-0.0959,0.6479,1.0000 2.500,0.7373,0.00985,0.00326,-0.0951,0.6278,1.0000 2.750,0.7625,0.01011,0.00339,-0.0944,0.6096,1.0000 3.000,0.7876,0.01036,0.00355,-0.0937,0.5912,1.0000 3.250,0.8127,0.01063,0.00374,-0.0930,0.5740,1.0000 3.500,0.8377,0.01091,0.00396,-0.0923,0.5575,1.0000 3.750,0.8628,0.01119,0.00419,-0.0917,0.5418,1.0000 4.000,0.8878,0.01149,0.00444,-0.0910,0.5267,1.0000 4.250,0.9129,0.01179,0.00471,-0.0904,0.5123,1.0000 4.500,0.9378,0.01209,0.00502,-0.0897,0.4981,1.0000 4.750,0.9626,0.01238,0.00531,-0.0890,0.4836,1.0000 5.000,0.9873,0.01267,0.00562,-0.0884,0.4696,1.0000 5.250,1.0115,0.01294,0.00590,-0.0876,0.4539,1.0000 5.500,1.0339,0.01313,0.00609,-0.0864,0.4299,1.0000 5.750,1.0560,0.01336,0.00627,-0.0852,0.4046,1.0000 6.000,1.0786,0.01360,0.00654,-0.0842,0.3794,1.0000 6.250,1.0999,0.01394,0.00682,-0.0829,0.3480,1.0000 6.500,1.1202,0.01439,0.00717,-0.0816,0.3029,1.0000 6.750,1.1290,0.01611,0.00805,-0.0789,0.1530,1.0000 7.000,1.1335,0.01880,0.00993,-0.0756,0.0505,1.0000 7.250,1.1505,0.01992,0.01114,-0.0738,0.0421,1.0000 7.500,1.1629,0.02142,0.01273,-0.0713,0.0381,1.0000 7.750,1.1781,0.02258,0.01402,-0.0692,0.0357,1.0000 8.000,1.1925,0.02379,0.01529,-0.0672,0.0328,1.0000 8.250,1.2038,0.02536,0.01692,-0.0648,0.0306,1.0000 8.500,1.2144,0.02762,0.01920,-0.0624,0.0293,1.0000 8.750,1.2322,0.02993,0.02158,-0.0609,0.0285,1.0000 9.000,1.2528,0.03177,0.02356,-0.0597,0.0280,1.0000 9.250,1.2733,0.03375,0.02572,-0.0585,0.0274,1.0000 9.500,1.2907,0.03542,0.02761,-0.0570,0.0260,1.0000 9.750,1.3085,0.03778,0.03023,-0.0556,0.0253,1.0000 10.000,1.3244,0.04077,0.03353,-0.0540,0.0254,1.0000 10.250,1.3358,0.04428,0.03740,-0.0520,0.0258,1.0000 10.500,1.3419,0.04825,0.04175,-0.0496,0.0266,1.0000 10.750,1.3431,0.05302,0.04686,-0.0473,0.0276,1.0000 11.000,1.2900,0.04940,0.04376,-0.0393,0.0300,1.0000 11.250,1.2403,0.05415,0.04924,-0.0319,0.0342,1.0000