Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-usa27-il-200000 Airfoil,usa27-il Reynolds number,200000 Ncrit,9 Mach,0 Max Cl/Cd,69.4231 Max Cl/Cd alpha,7.5 Url,http://airfoiltools.com/polar/csv?polar=xf-usa27-il-200000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -9.250,-0.3431,0.11122,0.10792,-0.0332,1.0000,0.0406 -9.000,-0.3578,0.10962,0.10640,-0.0324,1.0000,0.0407 -8.750,-0.3744,0.10806,0.10491,-0.0311,1.0000,0.0407 -8.500,-0.3579,0.10295,0.09980,-0.0276,1.0000,0.0416 -8.250,-0.3579,0.10085,0.09773,-0.0251,1.0000,0.0421 -8.000,-0.3637,0.09906,0.09598,-0.0229,1.0000,0.0427 -7.750,-0.3737,0.09743,0.09440,-0.0207,1.0000,0.0432 -7.500,-0.3669,0.09430,0.09128,-0.0233,0.9970,0.0443 -7.250,-0.3534,0.09022,0.08720,-0.0292,0.9916,0.0463 -7.000,-0.3239,0.08241,0.07916,-0.0528,0.9784,0.0498 -6.750,-0.3140,0.07791,0.07476,-0.0499,0.9760,0.0509 -6.500,-0.2906,0.07489,0.07174,-0.0514,0.9729,0.0523 -6.250,-0.2706,0.07159,0.06841,-0.0544,0.9664,0.0545 -6.000,-0.2295,0.06351,0.05987,-0.0705,0.9585,0.0610 -5.750,-0.2163,0.06043,0.05690,-0.0692,0.9512,0.0621 -5.500,-0.1849,0.05784,0.05431,-0.0715,0.9466,0.0646 -5.250,-0.1521,0.05200,0.04796,-0.0788,0.9363,0.0741 -5.000,-0.1203,0.04902,0.04511,-0.0810,0.9322,0.0762 -4.750,-0.0819,0.04636,0.04239,-0.0847,0.9295,0.0809 -4.500,-0.0614,0.04233,0.03803,-0.0860,0.9189,0.0898 -4.250,-0.0240,0.04030,0.03601,-0.0888,0.9161,0.0952 -4.000,-0.0006,0.03757,0.03307,-0.0894,0.9072,0.1057 -3.750,0.0353,0.03536,0.03071,-0.0920,0.9030,0.1198 -3.500,0.0736,0.03329,0.02851,-0.0947,0.9002,0.1347 -3.250,0.0961,0.03181,0.02691,-0.0940,0.8899,0.1489 -3.000,0.1321,0.03001,0.02502,-0.0958,0.8856,0.1648 -2.750,0.1611,0.02337,0.01701,-0.0937,0.8756,0.1003 -2.500,0.1953,0.02330,0.01739,-0.0963,0.8698,0.1370 -2.250,0.2197,0.02341,0.01769,-0.0958,0.8577,0.1675 -2.000,0.2663,0.01718,0.00957,-0.0944,0.8515,0.0644 -1.750,0.2982,0.01637,0.00857,-0.0944,0.8400,0.0624 -1.500,0.3278,0.01572,0.00782,-0.0942,0.8264,0.0617 -1.250,0.3573,0.01503,0.00707,-0.0940,0.8120,0.0615 -1.000,0.3858,0.01437,0.00638,-0.0937,0.7965,0.0618 -0.750,0.4128,0.01379,0.00579,-0.0932,0.7802,0.0632 -0.500,0.4392,0.01340,0.00537,-0.0926,0.7632,0.0661 -0.250,0.4654,0.01312,0.00501,-0.0919,0.7458,0.0679 0.000,0.4904,0.01294,0.00472,-0.0910,0.7269,0.0698 0.250,0.5156,0.01282,0.00446,-0.0901,0.7077,0.0726 0.500,0.5405,0.01269,0.00422,-0.0892,0.6888,0.0799 0.750,0.5621,0.01227,0.00418,-0.0879,0.6710,0.2186 1.000,0.5839,0.01210,0.00425,-0.0866,0.6538,0.3463 1.250,0.7089,0.01115,0.00456,-0.1069,0.6261,1.0000 1.500,0.7309,0.01140,0.00461,-0.1056,0.6083,1.0000 1.750,0.7523,0.01165,0.00468,-0.1042,0.5905,1.0000 2.000,0.7732,0.01188,0.00475,-0.1028,0.5730,1.0000 2.250,0.7935,0.01209,0.00484,-0.1012,0.5558,1.0000 2.500,0.8140,0.01230,0.00493,-0.0997,0.5400,1.0000 2.750,0.8346,0.01252,0.00502,-0.0982,0.5255,1.0000 3.000,0.8550,0.01273,0.00514,-0.0968,0.5116,1.0000 3.250,0.8758,0.01295,0.00529,-0.0953,0.4989,1.0000 3.500,0.8968,0.01319,0.00545,-0.0940,0.4878,1.0000 3.750,0.9182,0.01347,0.00560,-0.0928,0.4782,1.0000 4.000,0.9393,0.01371,0.00581,-0.0915,0.4682,1.0000 4.250,0.9610,0.01399,0.00602,-0.0903,0.4596,1.0000 4.500,0.9823,0.01427,0.00623,-0.0891,0.4508,1.0000 4.750,1.0037,0.01455,0.00648,-0.0879,0.4425,1.0000 5.000,1.0253,0.01484,0.00672,-0.0867,0.4346,1.0000 5.250,1.0469,0.01513,0.00701,-0.0856,0.4273,1.0000 5.500,1.0688,0.01542,0.00729,-0.0845,0.4206,1.0000 5.750,1.0916,0.01577,0.00760,-0.0837,0.4146,1.0000 6.000,1.1125,0.01604,0.00793,-0.0824,0.4080,1.0000 6.250,1.1356,0.01640,0.00823,-0.0817,0.4021,1.0000 6.500,1.1560,0.01669,0.00860,-0.0803,0.3957,1.0000 6.750,1.1760,0.01697,0.00888,-0.0789,0.3879,1.0000 7.000,1.1935,0.01721,0.00918,-0.0770,0.3785,1.0000 7.250,1.2120,0.01751,0.00941,-0.0754,0.3691,1.0000 7.500,1.2274,0.01768,0.00969,-0.0731,0.3592,1.0000 7.750,1.2433,0.01793,0.00998,-0.0709,0.3489,1.0000 8.000,1.2595,0.01822,0.01022,-0.0689,0.3388,1.0000 8.250,1.2745,0.01843,0.01057,-0.0666,0.3286,1.0000 8.500,1.2899,0.01873,0.01090,-0.0645,0.3186,1.0000 8.750,1.3020,0.01903,0.01121,-0.0618,0.3066,1.0000 9.000,1.3116,0.01933,0.01155,-0.0586,0.2922,1.0000 9.250,1.3224,0.01969,0.01195,-0.0558,0.2763,1.0000 9.500,1.3339,0.02013,0.01242,-0.0532,0.2581,1.0000 9.750,1.3423,0.02077,0.01298,-0.0503,0.2347,1.0000 10.000,1.3485,0.02164,0.01372,-0.0473,0.2071,1.0000 10.250,1.3523,0.02278,0.01472,-0.0442,0.1832,1.0000 10.750,1.3608,0.02532,0.01707,-0.0386,0.1455,1.0000 11.000,1.3672,0.02656,0.01826,-0.0363,0.1241,1.0000 11.250,1.3583,0.02891,0.02026,-0.0327,0.0783,1.0000 11.500,1.3395,0.03216,0.02323,-0.0288,0.0391,1.0000 11.750,1.3374,0.03436,0.02545,-0.0265,0.0347,1.0000 12.000,1.3370,0.03652,0.02772,-0.0247,0.0320,1.0000 12.250,1.3386,0.03864,0.02998,-0.0232,0.0306,1.0000 12.500,1.3383,0.04100,0.03251,-0.0219,0.0294,1.0000 12.750,1.3361,0.04369,0.03536,-0.0208,0.0284,1.0000 13.000,1.3317,0.04676,0.03860,-0.0200,0.0276,1.0000 13.250,1.3255,0.05021,0.04221,-0.0196,0.0271,1.0000 13.500,1.3175,0.05408,0.04624,-0.0195,0.0267,1.0000 13.750,1.3077,0.05833,0.05065,-0.0197,0.0263,1.0000 14.000,1.2964,0.06292,0.05539,-0.0202,0.0261,1.0000 14.250,1.2844,0.06774,0.06036,-0.0209,0.0259,1.0000 14.500,1.2721,0.07272,0.06548,-0.0218,0.0257,1.0000 14.750,1.2600,0.07772,0.07060,-0.0227,0.0256,1.0000 15.000,1.2520,0.08222,0.07521,-0.0236,0.0254,1.0000 15.250,1.2455,0.08651,0.07959,-0.0244,0.0253,1.0000 15.500,1.2408,0.09049,0.08366,-0.0251,0.0252,1.0000