Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-ma409-il-50000-n5 Airfoil,ma409-il Reynolds number,50000 Ncrit,5 Mach,0 Max Cl/Cd,42.5173 Max Cl/Cd alpha,3.75 Url,http://airfoiltools.com/polar/csv?polar=xf-ma409-il-50000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -9.000,-0.4199,0.09650,0.08988,-0.0277,1.0000,0.0421 -8.750,-0.4240,0.09330,0.08679,-0.0281,1.0000,0.0411 -8.250,-0.4323,0.08463,0.07836,-0.0344,1.0000,0.0384 -8.000,-0.4294,0.08093,0.07471,-0.0357,1.0000,0.0382 -7.750,-0.4255,0.07697,0.07080,-0.0376,1.0000,0.0380 -7.500,-0.4201,0.07266,0.06653,-0.0401,1.0000,0.0378 -7.250,-0.4125,0.06791,0.06178,-0.0433,1.0000,0.0377 -7.000,-0.4018,0.06254,0.05637,-0.0473,1.0000,0.0376 -6.750,-0.3872,0.05645,0.05014,-0.0521,1.0000,0.0375 -6.500,-0.3677,0.04951,0.04290,-0.0578,1.0000,0.0379 -6.250,-0.3471,0.04507,0.03820,-0.0610,1.0000,0.0401 -6.000,-0.3239,0.04137,0.03415,-0.0635,1.0000,0.0439 -5.750,-0.2916,0.03507,0.02694,-0.0682,1.0000,0.0473 -5.500,-0.2633,0.03161,0.02289,-0.0698,1.0000,0.0519 -5.250,-0.2343,0.02909,0.01978,-0.0710,1.0000,0.0648 -5.000,-0.2055,0.02692,0.01717,-0.0717,1.0000,0.0845 -4.750,-0.1819,0.02685,0.01681,-0.0718,1.0000,0.1187 -4.500,-0.1560,0.02581,0.01545,-0.0718,1.0000,0.1340 -4.250,-0.1300,0.02479,0.01416,-0.0717,1.0000,0.1418 -4.000,-0.1038,0.02398,0.01299,-0.0716,1.0000,0.1507 -3.750,-0.0775,0.02324,0.01199,-0.0714,1.0000,0.1571 -3.500,-0.0508,0.02260,0.01109,-0.0712,1.0000,0.1639 -3.250,-0.0238,0.02213,0.01041,-0.0712,1.0000,0.1751 -3.000,0.0029,0.02171,0.00989,-0.0713,1.0000,0.1909 -2.750,0.0300,0.02130,0.00948,-0.0715,1.0000,0.2101 -2.500,0.0574,0.02090,0.00915,-0.0717,1.0000,0.2427 -2.250,0.0849,0.02053,0.00895,-0.0721,1.0000,0.3078 -2.000,0.1119,0.02014,0.00890,-0.0724,1.0000,0.4051 -1.750,0.1382,0.01964,0.00884,-0.0724,1.0000,0.5232 -1.500,0.1522,0.01856,0.00872,-0.0692,0.9956,1.0000 -1.250,0.1889,0.01888,0.00868,-0.0714,0.9893,1.0000 -1.000,0.2248,0.01922,0.00874,-0.0735,0.9832,1.0000 -0.750,0.2613,0.01957,0.00888,-0.0757,0.9776,1.0000 -0.500,0.2942,0.01988,0.00904,-0.0771,0.9703,1.0000 -0.250,0.3300,0.02019,0.00924,-0.0791,0.9623,1.0000 0.000,0.3693,0.02048,0.00947,-0.0817,0.9536,1.0000 0.250,0.4050,0.02069,0.00964,-0.0834,0.9416,1.0000 0.500,0.4418,0.02084,0.00980,-0.0852,0.9288,1.0000 0.750,0.4792,0.02092,0.00994,-0.0870,0.9147,1.0000 1.000,0.5133,0.02102,0.01012,-0.0882,0.9015,1.0000 1.250,0.5462,0.02114,0.01034,-0.0891,0.8888,1.0000 1.500,0.5793,0.02123,0.01060,-0.0900,0.8756,1.0000 1.750,0.6126,0.02127,0.01081,-0.0908,0.8614,1.0000 2.000,0.6454,0.02126,0.01099,-0.0914,0.8464,1.0000 2.250,0.6791,0.02116,0.01117,-0.0919,0.8303,1.0000 2.500,0.7110,0.02102,0.01127,-0.0918,0.8097,1.0000 2.750,0.7494,0.02062,0.01112,-0.0924,0.7879,1.0000 3.000,0.7873,0.02028,0.01105,-0.0926,0.7606,1.0000 3.250,0.8215,0.02020,0.01118,-0.0922,0.7288,1.0000 3.500,0.8422,0.02056,0.01184,-0.0904,0.6887,1.0000 3.750,0.8597,0.02022,0.01131,-0.0862,0.5928,1.0000 4.000,0.8842,0.02096,0.01160,-0.0840,0.5169,1.0000 4.250,0.8963,0.02193,0.01234,-0.0807,0.4056,1.0000 4.500,0.9022,0.02397,0.01308,-0.0772,0.2152,1.0000 4.750,0.9147,0.02696,0.01484,-0.0756,0.0658,1.0000 5.000,0.9341,0.02887,0.01661,-0.0743,0.0454,1.0000 5.250,0.9531,0.03053,0.01844,-0.0728,0.0395,1.0000 5.500,0.9707,0.03231,0.02044,-0.0711,0.0367,1.0000 5.750,0.9890,0.03407,0.02247,-0.0694,0.0338,1.0000 6.000,1.0058,0.03609,0.02460,-0.0678,0.0308,1.0000 6.250,1.0249,0.03828,0.02714,-0.0662,0.0291,1.0000 6.500,1.0480,0.04071,0.02990,-0.0649,0.0283,1.0000 6.750,1.0717,0.04357,0.03312,-0.0637,0.0277,1.0000 7.000,1.0927,0.04680,0.03679,-0.0624,0.0274,1.0000 7.250,1.1092,0.05030,0.04077,-0.0607,0.0271,1.0000 7.500,1.1205,0.05395,0.04492,-0.0588,0.0267,1.0000 7.750,1.1267,0.05771,0.04917,-0.0566,0.0262,1.0000 8.000,1.1280,0.06158,0.05349,-0.0542,0.0258,1.0000 8.250,1.1246,0.06552,0.05783,-0.0519,0.0256,1.0000 8.500,1.1167,0.06951,0.06218,-0.0496,0.0255,1.0000 8.750,1.1034,0.07336,0.06632,-0.0472,0.0256,1.0000 9.000,1.0870,0.07747,0.07068,-0.0455,0.0257,1.0000 9.250,1.0688,0.08206,0.07548,-0.0450,0.0259,1.0000 9.500,1.0497,0.08733,0.08093,-0.0461,0.0262,1.0000 9.750,1.0307,0.09342,0.08718,-0.0488,0.0266,1.0000