Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-n6409-il-100000-n5 Airfoil,n6409-il Reynolds number,100000 Ncrit,5 Mach,0 Max Cl/Cd,63.7136 Max Cl/Cd alpha,6 Url,http://airfoiltools.com/polar/csv?polar=xf-n6409-il-100000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -8.000,-0.2406,0.10188,0.09719,-0.0477,0.9816,0.0527 -7.750,-0.2333,0.09956,0.09489,-0.0545,0.9733,0.0552 -7.500,-0.2275,0.09698,0.09234,-0.0616,0.9624,0.0558 -7.250,-0.2087,0.09270,0.08804,-0.0691,0.9551,0.0559 -7.000,-0.1917,0.08852,0.08384,-0.0742,0.9476,0.0560 -6.750,-0.1678,0.08359,0.07885,-0.0804,0.9432,0.0560 -6.500,-0.1633,0.07847,0.07373,-0.0753,0.9370,0.0442 -6.250,-0.1436,0.07454,0.06978,-0.0778,0.9318,0.0420 -6.000,-0.1255,0.07042,0.06562,-0.0830,0.9232,0.0422 -5.750,-0.0983,0.06553,0.06066,-0.0904,0.9168,0.0423 -5.500,-0.0772,0.06110,0.05615,-0.0955,0.9081,0.0413 -5.250,-0.0445,0.05539,0.05029,-0.1036,0.9023,0.0401 -5.000,-0.0155,0.04985,0.04456,-0.1102,0.8946,0.0394 -4.750,0.0204,0.04445,0.03888,-0.1171,0.8888,0.0405 -4.500,0.0651,0.03726,0.03117,-0.1258,0.8857,0.0422 -4.250,0.0916,0.03205,0.02535,-0.1287,0.8771,0.0426 -4.000,0.1298,0.02747,0.01991,-0.1325,0.8732,0.0438 -3.750,0.1622,0.02531,0.01728,-0.1340,0.8681,0.0466 -3.500,0.1898,0.02427,0.01606,-0.1342,0.8608,0.0494 -3.250,0.2259,0.02258,0.01394,-0.1358,0.8570,0.0524 -3.000,0.2524,0.02143,0.01242,-0.1354,0.8489,0.0555 -2.750,0.2853,0.02059,0.01154,-0.1364,0.8436,0.0611 -2.500,0.3145,0.01984,0.01054,-0.1365,0.8365,0.0679 -2.250,0.3449,0.01918,0.00989,-0.1369,0.8297,0.0765 -2.000,0.3754,0.01862,0.00927,-0.1372,0.8229,0.0880 -1.750,0.4046,0.01818,0.00877,-0.1373,0.8150,0.1023 -1.500,0.4343,0.01778,0.00834,-0.1375,0.8074,0.1192 -1.250,0.4643,0.01739,0.00793,-0.1377,0.7995,0.1384 -1.000,0.4925,0.01709,0.00764,-0.1377,0.7906,0.1590 -0.750,0.5240,0.01676,0.00731,-0.1381,0.7831,0.1859 -0.500,0.5501,0.01657,0.00716,-0.1377,0.7729,0.2135 -0.250,0.5817,0.01630,0.00691,-0.1382,0.7648,0.2509 0.000,0.6102,0.01609,0.00676,-0.1382,0.7550,0.2961 0.250,0.6383,0.01582,0.00665,-0.1382,0.7451,0.3638 0.500,0.6737,0.01438,0.00645,-0.1393,0.7373,1.0000 0.750,0.6997,0.01450,0.00639,-0.1387,0.7259,1.0000 1.000,0.7274,0.01460,0.00633,-0.1385,0.7157,1.0000 1.250,0.7570,0.01468,0.00623,-0.1387,0.7065,1.0000 1.500,0.7831,0.01483,0.00627,-0.1382,0.6956,1.0000 1.750,0.8099,0.01498,0.00632,-0.1379,0.6853,1.0000 2.000,0.8383,0.01512,0.00632,-0.1379,0.6761,1.0000 2.250,0.8641,0.01531,0.00646,-0.1374,0.6658,1.0000 2.500,0.8903,0.01551,0.00659,-0.1370,0.6560,1.0000 3.000,0.9430,0.01594,0.00691,-0.1363,0.6375,1.0000 3.250,0.9694,0.01617,0.00709,-0.1360,0.6289,1.0000 3.500,0.9953,0.01641,0.00730,-0.1356,0.6202,1.0000 3.750,1.0205,0.01668,0.00757,-0.1351,0.6115,1.0000 4.000,1.0471,0.01694,0.00781,-0.1349,0.6037,1.0000 4.250,1.0712,0.01725,0.00816,-0.1342,0.5952,1.0000 4.500,1.0981,0.01752,0.00841,-0.1340,0.5880,1.0000 4.750,1.1214,0.01786,0.00885,-0.1332,0.5796,1.0000 5.000,1.1482,0.01815,0.00913,-0.1330,0.5728,1.0000 5.250,1.1708,0.01852,0.00961,-0.1322,0.5645,1.0000 5.500,1.1974,0.01883,0.00993,-0.1319,0.5578,1.0000 5.750,1.2194,0.01923,0.01048,-0.1310,0.5495,1.0000 6.000,1.2456,0.01955,0.01085,-0.1306,0.5428,1.0000 6.250,1.2669,0.01997,0.01142,-0.1296,0.5344,1.0000 6.500,1.2929,0.02031,0.01180,-0.1292,0.5274,1.0000 6.750,1.3129,0.02075,0.01245,-0.1279,0.5183,1.0000 7.000,1.3345,0.02109,0.01290,-0.1267,0.5079,1.0000 7.250,1.3499,0.02133,0.01318,-0.1243,0.4887,1.0000 7.500,1.3622,0.02156,0.01338,-0.1212,0.4646,1.0000 7.750,1.3721,0.02191,0.01377,-0.1179,0.4393,1.0000 8.000,1.3818,0.02236,0.01428,-0.1147,0.4152,1.0000 8.250,1.3881,0.02289,0.01482,-0.1110,0.3860,1.0000 8.500,1.3900,0.02360,0.01543,-0.1066,0.3489,1.0000 8.750,1.3885,0.02466,0.01627,-0.1020,0.3006,1.0000 9.000,1.3808,0.02629,0.01753,-0.0970,0.2433,1.0000 9.250,1.3688,0.02850,0.01933,-0.0921,0.1831,1.0000 9.500,1.3573,0.03100,0.02148,-0.0878,0.1330,1.0000 9.750,1.3481,0.03353,0.02380,-0.0842,0.0985,1.0000 10.000,1.3421,0.03598,0.02614,-0.0812,0.0770,1.0000 10.250,1.3381,0.03840,0.02853,-0.0786,0.0643,1.0000 10.500,1.3355,0.04084,0.03102,-0.0763,0.0565,1.0000 10.750,1.3321,0.04346,0.03370,-0.0743,0.0513,1.0000 11.000,1.3293,0.04615,0.03649,-0.0726,0.0476,1.0000 11.250,1.3279,0.04881,0.03930,-0.0711,0.0443,1.0000 11.500,1.3252,0.05169,0.04228,-0.0699,0.0416,1.0000 11.750,1.3205,0.05489,0.04553,-0.0687,0.0396,1.0000 12.000,1.3219,0.05755,0.04836,-0.0678,0.0373,1.0000 12.250,1.3225,0.06034,0.05131,-0.0670,0.0355,1.0000 12.500,1.3235,0.06315,0.05423,-0.0662,0.0341,1.0000 12.750,1.3250,0.06594,0.05709,-0.0655,0.0328,1.0000 13.000,1.3274,0.06863,0.05983,-0.0647,0.0318,1.0000 13.250,1.3346,0.07083,0.06210,-0.0637,0.0308,1.0000 13.500,1.3433,0.07296,0.06441,-0.0628,0.0296,1.0000 13.750,1.3510,0.07526,0.06687,-0.0621,0.0283,1.0000 14.000,1.3572,0.07776,0.06954,-0.0617,0.0271,1.0000 14.250,1.3635,0.08030,0.07219,-0.0612,0.0261,1.0000 14.500,1.3711,0.08276,0.07476,-0.0607,0.0254,1.0000 14.750,1.3801,0.08518,0.07726,-0.0601,0.0247,1.0000 15.000,1.3881,0.08800,0.08024,-0.0595,0.0242,1.0000 15.250,1.3890,0.09165,0.08419,-0.0595,0.0238,1.0000 15.500,1.3861,0.09583,0.08868,-0.0600,0.0234,1.0000 15.750,1.3802,0.10045,0.09359,-0.0610,0.0230,1.0000 16.000,1.3721,0.10545,0.09887,-0.0624,0.0226,1.0000 16.250,1.3623,0.11082,0.10452,-0.0642,0.0222,1.0000 16.500,1.3511,0.11656,0.11051,-0.0666,0.0219,1.0000 16.750,1.3387,0.12272,0.11692,-0.0694,0.0217,1.0000 17.000,1.3246,0.12943,0.12387,-0.0729,0.0215,1.0000 17.250,1.3086,0.13686,0.13154,-0.0771,0.0215,1.0000 17.500,1.2903,0.14518,0.14009,-0.0822,0.0215,1.0000 17.750,1.2691,0.15482,0.14996,-0.0885,0.0217,1.0000 18.000,1.2442,0.16640,0.16174,-0.0963,0.0221,1.0000 18.250,1.2160,0.18055,0.17603,-0.1059,0.0227,1.0000