Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-naca66209-il-200000 Airfoil,naca66209-il Reynolds number,200000 Ncrit,9 Mach,0 Max Cl/Cd,53.3037 Max Cl/Cd alpha,2.75 Url,http://airfoiltools.com/polar/csv?polar=xf-naca66209-il-200000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -11.250,-0.4151,0.11308,0.10960,-0.0288,1.0000,0.0358 -11.000,-0.4186,0.10928,0.10583,-0.0315,1.0000,0.0363 -10.750,-0.4225,0.10532,0.10189,-0.0343,1.0000,0.0366 -10.500,-0.4241,0.10111,0.09770,-0.0364,1.0000,0.0366 -10.250,-0.4275,0.09665,0.09326,-0.0390,1.0000,0.0367 -10.000,-0.4304,0.08961,0.08626,-0.0383,1.0000,0.0380 -9.750,-0.4239,0.08621,0.08287,-0.0373,1.0000,0.0391 -9.500,-0.4231,0.08234,0.07901,-0.0378,1.0000,0.0399 -9.250,-0.4252,0.07816,0.07486,-0.0389,1.0000,0.0408 -9.000,-0.4299,0.07373,0.07046,-0.0405,1.0000,0.0415 -8.750,-0.4381,0.06889,0.06566,-0.0427,1.0000,0.0421 -8.500,-0.4531,0.06367,0.06048,-0.0461,1.0000,0.0418 -8.250,-0.4755,0.05964,0.05648,-0.0468,1.0000,0.0416 -8.000,-0.5059,0.05785,0.05473,-0.0426,1.0000,0.0409 -7.750,-0.5969,0.06517,0.06160,-0.0385,1.0000,0.0384 -7.500,-0.6043,0.06306,0.05949,-0.0351,1.0000,0.0390 -7.250,-0.6119,0.06092,0.05731,-0.0318,1.0000,0.0396 -7.000,-0.6172,0.05864,0.05499,-0.0288,1.0000,0.0405 -6.750,-0.6202,0.05622,0.05247,-0.0262,1.0000,0.0416 -6.500,-0.6183,0.05346,0.04957,-0.0243,0.9996,0.0432 -6.250,-0.5873,0.05177,0.04711,-0.0266,0.9949,0.0493 -6.000,-0.5741,0.04457,0.03972,-0.0282,0.9912,0.0514 -5.750,-0.5518,0.04126,0.03641,-0.0296,0.9879,0.0543 -5.500,-0.5242,0.03903,0.03344,-0.0307,0.9841,0.0641 -5.250,-0.5003,0.03534,0.02990,-0.0321,0.9820,0.0688 -5.000,-0.4797,0.03315,0.02737,-0.0321,0.9777,0.0803 -4.750,-0.4549,0.03115,0.02527,-0.0330,0.9744,0.0967 -4.250,-0.3810,0.02335,0.01594,-0.0316,0.9708,0.0452 -4.000,-0.3468,0.02129,0.01355,-0.0324,0.9694,0.0441 -3.750,-0.3243,0.02030,0.01238,-0.0312,0.9654,0.0463 -3.500,-0.2960,0.01901,0.01092,-0.0311,0.9627,0.0462 -3.250,-0.2660,0.01795,0.00977,-0.0315,0.9604,0.0476 -3.000,-0.2338,0.01725,0.00900,-0.0324,0.9582,0.0497 -2.750,-0.2027,0.01611,0.00796,-0.0336,0.9564,0.0573 -2.500,-0.1811,0.01568,0.00748,-0.0326,0.9523,0.0621 -2.250,-0.1568,0.01515,0.00691,-0.0323,0.9487,0.0751 -2.000,-0.1417,0.01244,0.00642,-0.0315,0.9458,0.5724 -1.750,-0.1283,0.01259,0.00738,-0.0262,0.9428,0.8332 -1.500,-0.1260,0.01312,0.00799,-0.0194,0.9373,0.8779 -1.250,-0.1175,0.01358,0.00845,-0.0136,0.9326,0.9132 -1.000,-0.0893,0.01395,0.00874,-0.0123,0.9305,0.9382 -0.750,-0.0071,0.01460,0.00927,-0.0221,0.9346,0.9605 -0.500,0.0399,0.01466,0.00925,-0.0265,0.9336,0.9642 -0.250,0.0805,0.01468,0.00920,-0.0297,0.9316,0.9679 0.000,0.1215,0.01468,0.00917,-0.0329,0.9298,0.9705 0.250,0.1679,0.01465,0.00912,-0.0372,0.9286,0.9715 0.500,0.1995,0.01468,0.00916,-0.0387,0.9238,0.9750 0.750,0.2359,0.01468,0.00918,-0.0411,0.9203,0.9777 1.000,0.2778,0.01464,0.00918,-0.0444,0.9179,0.9796 1.250,0.3224,0.01456,0.00917,-0.0482,0.9159,0.9808 1.500,0.3561,0.01456,0.00923,-0.0499,0.9112,0.9837 1.750,0.4004,0.01418,0.00895,-0.0530,0.9041,0.9843 2.000,0.4482,0.01313,0.00801,-0.0553,0.8894,0.9834 2.250,0.4844,0.01185,0.00677,-0.0545,0.8640,0.9844 2.500,0.5146,0.01079,0.00570,-0.0528,0.8316,0.9869 2.750,0.5405,0.01014,0.00503,-0.0511,0.7825,0.9908 3.000,0.5484,0.01083,0.00424,-0.0456,0.4496,0.9959 3.250,0.5501,0.01378,0.00528,-0.0424,0.0758,1.0000 3.500,0.5635,0.01433,0.00582,-0.0400,0.0610,1.0000 3.750,0.5734,0.01510,0.00659,-0.0369,0.0546,1.0000 4.000,0.5850,0.01565,0.00722,-0.0340,0.0512,1.0000 4.250,0.5952,0.01631,0.00790,-0.0309,0.0482,1.0000 4.500,0.6051,0.01704,0.00860,-0.0278,0.0448,1.0000 4.750,0.6175,0.01854,0.01007,-0.0252,0.0421,1.0000 5.000,0.6349,0.01944,0.01108,-0.0231,0.0410,1.0000 5.250,0.6563,0.02074,0.01248,-0.0218,0.0404,1.0000 5.500,0.6811,0.02248,0.01438,-0.0209,0.0403,1.0000 5.750,0.7068,0.02481,0.01692,-0.0202,0.0409,1.0000 6.000,0.7299,0.02640,0.01879,-0.0191,0.0396,1.0000 6.250,0.7553,0.03068,0.02324,-0.0187,0.0428,1.0000 7.500,0.8383,0.04685,0.04177,-0.0075,0.0588,1.0000 7.750,0.8555,0.05248,0.04714,-0.0084,0.0557,1.0000 8.000,0.8479,0.05377,0.04924,-0.0036,0.0508,1.0000 8.250,0.8521,0.05687,0.05258,-0.0018,0.0476,1.0000 8.500,0.8569,0.05997,0.05580,-0.0005,0.0456,1.0000 8.750,0.8642,0.06347,0.05931,0.0002,0.0441,1.0000 9.000,0.8644,0.07277,0.06851,-0.0007,0.0425,1.0000 9.250,0.7674,0.06244,0.05903,0.0096,0.0450,1.0000 9.500,0.7502,0.06643,0.06310,0.0108,0.0447,1.0000 9.750,0.7135,0.07211,0.06894,0.0100,0.0456,1.0000 10.000,0.6747,0.08069,0.07764,0.0050,0.0472,1.0000 10.250,0.6508,0.08996,0.08690,-0.0016,0.0481,1.0000