Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-ag18-il-500000 Airfoil,ag18-il Reynolds number,500000 Ncrit,9 Mach,0 Max Cl/Cd,81.8286 Max Cl/Cd alpha,4.25 Url,http://airfoiltools.com/polar/csv?polar=xf-ag18-il-500000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -4.250,-0.2410,0.01709,0.01238,-0.0513,1.0000,0.0142 -4.000,-0.2144,0.01628,0.01135,-0.0509,1.0000,0.0159 -3.750,-0.1874,0.01403,0.00876,-0.0506,1.0000,0.0156 -3.500,-0.1604,0.01211,0.00658,-0.0501,1.0000,0.0150 -3.250,-0.1335,0.01081,0.00512,-0.0497,1.0000,0.0151 -3.000,-0.1068,0.00991,0.00411,-0.0492,1.0000,0.0159 -2.750,-0.0792,0.00890,0.00296,-0.0490,1.0000,0.0187 -2.500,-0.0525,0.00846,0.00248,-0.0487,1.0000,0.0257 -2.250,-0.0249,0.00784,0.00197,-0.0486,1.0000,0.0603 -2.000,0.0047,0.00739,0.00179,-0.0492,0.9989,0.1300 -1.750,0.0445,0.00687,0.00164,-0.0521,0.9937,0.2393 -1.500,0.0826,0.00642,0.00156,-0.0545,0.9860,0.3545 -1.250,0.1193,0.00605,0.00147,-0.0564,0.9755,0.4547 -1.000,0.1540,0.00566,0.00142,-0.0579,0.9614,0.5657 -0.750,0.1840,0.00511,0.00137,-0.0581,0.9426,0.7249 -0.500,0.2101,0.00449,0.00126,-0.0567,0.9189,1.0000 -0.250,0.2362,0.00455,0.00119,-0.0559,0.8915,1.0000 0.000,0.2619,0.00464,0.00113,-0.0550,0.8624,1.0000 0.250,0.2877,0.00476,0.00109,-0.0542,0.8322,1.0000 0.500,0.3140,0.00489,0.00106,-0.0536,0.8011,1.0000 0.750,0.3405,0.00504,0.00105,-0.0530,0.7692,1.0000 1.000,0.3671,0.00521,0.00106,-0.0525,0.7365,1.0000 1.250,0.3939,0.00538,0.00107,-0.0521,0.7022,1.0000 1.500,0.4207,0.00557,0.00110,-0.0517,0.6662,1.0000 1.750,0.4476,0.00578,0.00116,-0.0514,0.6276,1.0000 2.000,0.4744,0.00601,0.00122,-0.0510,0.5862,1.0000 2.250,0.5013,0.00627,0.00130,-0.0508,0.5429,1.0000 2.500,0.5281,0.00655,0.00139,-0.0505,0.4982,1.0000 2.750,0.5550,0.00684,0.00151,-0.0503,0.4539,1.0000 3.000,0.5818,0.00715,0.00168,-0.0501,0.4116,1.0000 3.250,0.6087,0.00746,0.00183,-0.0500,0.3719,1.0000 3.500,0.6356,0.00778,0.00201,-0.0498,0.3357,1.0000 3.750,0.6624,0.00810,0.00220,-0.0497,0.3015,1.0000 4.000,0.6892,0.00843,0.00243,-0.0495,0.2692,1.0000 4.250,0.7160,0.00875,0.00266,-0.0494,0.2404,1.0000 4.500,0.7427,0.00910,0.00290,-0.0492,0.2101,1.0000 4.750,0.7694,0.00946,0.00318,-0.0490,0.1837,1.0000 5.000,0.7958,0.00985,0.00347,-0.0489,0.1569,1.0000 5.250,0.8222,0.01026,0.00383,-0.0487,0.1328,1.0000 5.500,0.8484,0.01071,0.00419,-0.0485,0.1103,1.0000 5.750,0.8746,0.01114,0.00457,-0.0483,0.0910,1.0000 6.000,0.9005,0.01163,0.00501,-0.0480,0.0739,1.0000 6.250,0.9262,0.01219,0.00551,-0.0477,0.0582,1.0000 6.500,0.9518,0.01272,0.00604,-0.0474,0.0456,1.0000 6.750,0.9771,0.01335,0.00670,-0.0471,0.0342,1.0000 7.000,1.0017,0.01416,0.00751,-0.0466,0.0243,1.0000 7.250,1.0270,0.01474,0.00812,-0.0462,0.0182,1.0000 7.500,1.0503,0.01591,0.00945,-0.0455,0.0138,1.0000 7.750,1.0741,0.01685,0.01048,-0.0449,0.0112,1.0000 8.000,1.0914,0.01944,0.01334,-0.0435,0.0091,1.0000 8.250,1.1163,0.01991,0.01390,-0.0431,0.0083,1.0000 8.500,1.1382,0.02117,0.01533,-0.0423,0.0075,1.0000 8.750,1.1589,0.02264,0.01702,-0.0414,0.0069,1.0000 9.000,1.1790,0.02410,0.01866,-0.0406,0.0064,1.0000 9.250,1.1972,0.02586,0.02059,-0.0396,0.0059,1.0000 9.500,1.2083,0.02917,0.02425,-0.0381,0.0055,1.0000 9.750,1.2109,0.03401,0.02960,-0.0360,0.0053,1.0000 10.000,1.2086,0.03898,0.03506,-0.0341,0.0052,1.0000 10.250,1.2043,0.04334,0.03980,-0.0325,0.0052,1.0000 10.500,1.1967,0.04721,0.04396,-0.0310,0.0052,1.0000 10.750,1.1838,0.05074,0.04770,-0.0297,0.0053,1.0000 11.000,1.1699,0.05515,0.05231,-0.0310,0.0053,1.0000 11.250,1.1568,0.06083,0.05819,-0.0350,0.0053,1.0000 11.500,1.1453,0.06772,0.06524,-0.0409,0.0053,1.0000 11.750,1.1331,0.07592,0.07360,-0.0479,0.0053,1.0000 12.000,1.1209,0.08455,0.08235,-0.0545,0.0054,1.0000 12.250,1.1069,0.09356,0.09146,-0.0604,0.0054,1.0000 12.500,1.0933,0.10229,0.10027,-0.0655,0.0055,1.0000 12.750,1.0750,0.11226,0.11032,-0.0707,0.0056,1.0000