Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-naca0018-il-100000-n5 Airfoil,naca0018-il Reynolds number,100000 Ncrit,5 Mach,0 Max Cl/Cd,38.0837 Max Cl/Cd alpha,7 Url,http://www.airfoiltools.com/polar/csv?polar=xf-naca0018-il-100000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -18.500,-0.7056,0.18357,0.17707,0.0125,1.0000,0.0618 -18.250,-0.7312,0.17080,0.16428,0.0055,1.0000,0.0645 -18.000,-0.9311,0.11971,0.11273,-0.0226,1.0000,0.0715 -17.750,-0.8775,0.12672,0.11994,-0.0180,1.0000,0.0724 -17.500,-0.9340,0.11189,0.10487,-0.0263,1.0000,0.0739 -17.250,-0.9703,0.10170,0.09444,-0.0319,1.0000,0.0750 -17.000,-0.9964,0.09376,0.08627,-0.0360,1.0000,0.0762 -16.750,-1.0179,0.08687,0.07915,-0.0393,1.0000,0.0774 -16.500,-1.0368,0.08065,0.07266,-0.0420,1.0000,0.0787 -16.250,-1.0350,0.07781,0.06981,-0.0428,1.0000,0.0800 -16.000,-1.0347,0.07477,0.06674,-0.0436,1.0000,0.0814 -15.750,-1.0376,0.07129,0.06317,-0.0447,1.0000,0.0829 -15.500,-1.0423,0.06764,0.05938,-0.0457,1.0000,0.0847 -15.250,-1.0483,0.06390,0.05543,-0.0467,1.0000,0.0866 -15.000,-1.0476,0.06116,0.05264,-0.0471,1.0000,0.0883 -14.750,-1.0458,0.05865,0.05012,-0.0474,1.0000,0.0902 -14.500,-1.0455,0.05600,0.04739,-0.0476,1.0000,0.0924 -14.250,-1.0455,0.05332,0.04456,-0.0478,1.0000,0.0949 -14.000,-1.0432,0.05097,0.04213,-0.0477,1.0000,0.0972 -13.750,-1.0400,0.04886,0.04001,-0.0474,1.0000,0.0995 -13.500,-1.0370,0.04675,0.03783,-0.0471,1.0000,0.1023 -13.250,-1.0334,0.04471,0.03564,-0.0466,1.0000,0.1055 -13.000,-1.0290,0.04288,0.03381,-0.0459,1.0000,0.1083 -12.750,-1.0244,0.04115,0.03206,-0.0451,1.0000,0.1114 -12.500,-1.0188,0.03952,0.03032,-0.0442,1.0000,0.1152 -12.250,-1.0130,0.03798,0.02875,-0.0431,1.0000,0.1188 -12.000,-1.0075,0.03656,0.02732,-0.0418,1.0000,0.1225 -11.750,-1.0004,0.03526,0.02592,-0.0404,1.0000,0.1270 -11.500,-0.9938,0.03402,0.02469,-0.0387,1.0000,0.1311 -11.250,-0.9874,0.03289,0.02354,-0.0369,1.0000,0.1357 -10.750,-0.9734,0.03089,0.02149,-0.0327,1.0000,0.1457 -10.500,-0.9663,0.03003,0.02059,-0.0303,1.0000,0.1513 -10.250,-0.9601,0.02923,0.01978,-0.0275,1.0000,0.1567 -10.000,-0.9563,0.02851,0.01908,-0.0242,1.0000,0.1622 -9.500,-0.9495,0.02730,0.01788,-0.0168,1.0000,0.1737 -9.250,-0.9431,0.02674,0.01730,-0.0135,1.0000,0.1807 -9.000,-0.9370,0.02618,0.01677,-0.0101,1.0000,0.1871 -8.750,-0.9302,0.02567,0.01626,-0.0068,1.0000,0.1945 -8.500,-0.9225,0.02517,0.01578,-0.0036,1.0000,0.2020 -8.250,-0.9148,0.02471,0.01533,-0.0004,1.0000,0.2100 -8.000,-0.9059,0.02426,0.01490,0.0027,1.0000,0.2182 -7.750,-0.8967,0.02384,0.01450,0.0057,1.0000,0.2271 -7.500,-0.8867,0.02344,0.01412,0.0085,1.0000,0.2360 -7.250,-0.8758,0.02308,0.01376,0.0112,1.0000,0.2460 -7.000,-0.8647,0.02271,0.01345,0.0138,1.0000,0.2554 -6.750,-0.8322,0.02229,0.01303,0.0123,0.9948,0.2695 -6.500,-0.7975,0.02189,0.01264,0.0104,0.9886,0.2846 -6.250,-0.7628,0.02150,0.01230,0.0085,0.9820,0.2997 -6.000,-0.7292,0.02113,0.01198,0.0069,0.9750,0.3149 -5.750,-0.6943,0.02078,0.01168,0.0052,0.9681,0.3307 -5.500,-0.6612,0.02045,0.01139,0.0038,0.9604,0.3466 -5.250,-0.6261,0.02013,0.01111,0.0021,0.9531,0.3631 -5.000,-0.5924,0.01983,0.01083,0.0008,0.9453,0.3797 -4.750,-0.5579,0.01953,0.01057,-0.0007,0.9374,0.3969 -4.500,-0.5239,0.01923,0.01033,-0.0019,0.9297,0.4135 -4.250,-0.4925,0.01894,0.01011,-0.0026,0.9201,0.4294 -4.000,-0.4597,0.01866,0.00989,-0.0035,0.9116,0.4456 -3.750,-0.4292,0.01840,0.00967,-0.0038,0.9013,0.4616 -3.500,-0.3983,0.01815,0.00945,-0.0042,0.8913,0.4779 -3.000,-0.3390,0.01768,0.00907,-0.0044,0.8692,0.5102 -2.750,-0.3069,0.01743,0.00887,-0.0049,0.8592,0.5264 -2.500,-0.2803,0.01725,0.00874,-0.0043,0.8457,0.5421 -2.250,-0.2501,0.01704,0.00855,-0.0044,0.8343,0.5585 -2.000,-0.2221,0.01686,0.00839,-0.0040,0.8210,0.5752 -1.750,-0.1947,0.01672,0.00830,-0.0035,0.8069,0.5908 -1.500,-0.1654,0.01656,0.00818,-0.0033,0.7939,0.6068 -1.250,-0.1373,0.01643,0.00807,-0.0028,0.7796,0.6228 -1.000,-0.1106,0.01634,0.00800,-0.0022,0.7641,0.6391 -0.750,-0.0833,0.01626,0.00791,-0.0016,0.7492,0.6558 -0.500,-0.0545,0.01619,0.00786,-0.0012,0.7347,0.6714 -0.250,-0.0269,0.01616,0.00785,-0.0006,0.7189,0.6869 0.000,0.0000,0.01616,0.00786,0.0000,0.7027,0.7027 0.250,0.0269,0.01616,0.00785,0.0006,0.6869,0.7189 0.500,0.0545,0.01619,0.00786,0.0012,0.6714,0.7347 0.750,0.0833,0.01626,0.00791,0.0016,0.6558,0.7492 1.000,0.1106,0.01634,0.00800,0.0022,0.6391,0.7641 1.250,0.1373,0.01643,0.00807,0.0028,0.6228,0.7796 1.500,0.1654,0.01656,0.00818,0.0033,0.6068,0.7939 1.750,0.1947,0.01672,0.00830,0.0035,0.5908,0.8069 2.000,0.2221,0.01686,0.00839,0.0040,0.5752,0.8210 2.250,0.2501,0.01704,0.00855,0.0044,0.5585,0.8343 2.500,0.2803,0.01725,0.00874,0.0043,0.5421,0.8457 2.750,0.3069,0.01743,0.00887,0.0049,0.5264,0.8592 3.000,0.3390,0.01768,0.00907,0.0044,0.5102,0.8692 3.500,0.3983,0.01815,0.00945,0.0043,0.4779,0.8914 3.750,0.4291,0.01840,0.00966,0.0038,0.4616,0.9013 4.000,0.4596,0.01866,0.00988,0.0035,0.4456,0.9116 4.250,0.4925,0.01894,0.01011,0.0026,0.4294,0.9201 4.500,0.5238,0.01923,0.01033,0.0019,0.4135,0.9297 4.750,0.5579,0.01953,0.01056,0.0007,0.3969,0.9374 5.000,0.5924,0.01982,0.01083,-0.0008,0.3797,0.9454 5.250,0.6261,0.02012,0.01110,-0.0021,0.3631,0.9532 5.500,0.6612,0.02044,0.01138,-0.0038,0.3466,0.9605 5.750,0.6944,0.02077,0.01168,-0.0052,0.3307,0.9681 6.000,0.7293,0.02113,0.01198,-0.0070,0.3149,0.9751 6.250,0.7630,0.02150,0.01230,-0.0086,0.2997,0.9821 6.500,0.7976,0.02189,0.01264,-0.0104,0.2845,0.9887 6.750,0.8324,0.02228,0.01303,-0.0123,0.2694,0.9949 7.000,0.8645,0.02270,0.01344,-0.0138,0.2555,1.0000 7.250,0.8756,0.02307,0.01375,-0.0112,0.2460,1.0000 7.500,0.8865,0.02343,0.01411,-0.0085,0.2360,1.0000 7.750,0.8966,0.02384,0.01449,-0.0056,0.2271,1.0000 8.000,0.9058,0.02425,0.01489,-0.0026,0.2182,1.0000 8.250,0.9147,0.02470,0.01532,0.0004,0.2100,1.0000 8.500,0.9225,0.02517,0.01577,0.0036,0.2020,1.0000 8.750,0.9302,0.02566,0.01625,0.0068,0.1945,1.0000 9.000,0.9371,0.02617,0.01676,0.0101,0.1871,1.0000 9.250,0.9432,0.02673,0.01729,0.0135,0.1807,1.0000 9.500,0.9497,0.02729,0.01787,0.0168,0.1737,1.0000 10.000,0.9566,0.02851,0.01908,0.0241,0.1622,1.0000 10.250,0.9605,0.02922,0.01977,0.0274,0.1567,1.0000 10.500,0.9668,0.03002,0.02058,0.0302,0.1512,1.0000 10.750,0.9739,0.03088,0.02148,0.0326,0.1456,1.0000 11.000,0.9794,0.03188,0.02241,0.0349,0.1411,1.0000 11.250,0.9881,0.03288,0.02353,0.0368,0.1356,1.0000 11.500,0.9946,0.03402,0.02467,0.0386,0.1311,1.0000 11.750,1.0013,0.03525,0.02591,0.0402,0.1269,1.0000 12.000,1.0085,0.03655,0.02730,0.0416,0.1224,1.0000 12.250,1.0140,0.03797,0.02873,0.0429,0.1187,1.0000 12.500,1.0199,0.03950,0.03030,0.0440,0.1151,1.0000 12.750,1.0256,0.04113,0.03203,0.0450,0.1113,1.0000 13.000,1.0302,0.04286,0.03379,0.0457,0.1082,1.0000 13.250,1.0348,0.04469,0.03562,0.0464,0.1054,1.0000 13.500,1.0385,0.04672,0.03780,0.0469,0.1022,1.0000 13.750,1.0416,0.04883,0.03998,0.0472,0.0994,1.0000 14.000,1.0450,0.05093,0.04208,0.0474,0.0971,1.0000 14.250,1.0471,0.05330,0.04454,0.0475,0.0948,1.0000 14.500,1.0473,0.05597,0.04735,0.0474,0.0923,1.0000 14.750,1.0478,0.05860,0.05007,0.0471,0.0901,1.0000 15.000,1.0497,0.06109,0.05257,0.0469,0.0883,1.0000 15.250,1.0501,0.06388,0.05543,0.0464,0.0865,1.0000 15.500,1.0444,0.06760,0.05934,0.0455,0.0846,1.0000 15.750,1.0399,0.07123,0.06310,0.0444,0.0829,1.0000 16.000,1.0372,0.07467,0.06663,0.0434,0.0813,1.0000 16.250,1.0379,0.07767,0.06965,0.0425,0.0799,1.0000 16.500,1.0387,0.08069,0.07269,0.0417,0.0786,1.0000 16.750,1.0199,0.08689,0.07917,0.0389,0.0774,1.0000 17.000,0.9986,0.09375,0.08626,0.0356,0.0761,1.0000 17.250,0.9731,0.10160,0.09434,0.0316,0.0749,1.0000 17.500,0.9390,0.11140,0.10436,0.0263,0.0738,1.0000 17.750,0.8970,0.12325,0.11642,0.0197,0.0725,1.0000 18.000,0.9408,0.11831,0.11129,0.0232,0.0715,1.0000 18.250,0.7336,0.17092,0.16440,-0.0058,0.0645,1.0000 18.500,0.7074,0.18394,0.17744,-0.0129,0.0617,1.0000