Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-naca644221-il-100000 Airfoil,naca644221-il Reynolds number,100000 Ncrit,9 Mach,0 Max Cl/Cd,24.0535 Max Cl/Cd alpha,11.75 Url,http://www.airfoiltools.com/polar/csv?polar=xf-naca644221-il-100000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -16.500,-0.7175,0.10640,0.10059,-0.0537,1.0000,0.0867 -16.250,-0.7575,0.09643,0.09046,-0.0586,1.0000,0.0858 -16.000,-0.8020,0.08731,0.08112,-0.0628,1.0000,0.0849 -15.750,-0.8412,0.07993,0.07349,-0.0657,1.0000,0.0843 -15.500,-0.8730,0.07397,0.06728,-0.0674,1.0000,0.0840 -15.250,-0.8986,0.06899,0.06204,-0.0683,1.0000,0.0840 -15.000,-0.9176,0.06480,0.05762,-0.0686,1.0000,0.0842 -14.750,-0.9338,0.06116,0.05372,-0.0685,1.0000,0.0848 -14.500,-0.9457,0.05793,0.05024,-0.0680,1.0000,0.0854 -14.250,-0.9576,0.05506,0.04709,-0.0672,1.0000,0.0862 -14.000,-0.9693,0.05254,0.04427,-0.0660,1.0000,0.0870 -13.750,-0.9329,0.05051,0.04239,-0.0668,1.0000,0.0899 -13.500,-0.9176,0.04871,0.04054,-0.0665,1.0000,0.0921 -13.250,-0.9053,0.04683,0.03850,-0.0660,1.0000,0.0943 -13.000,-0.9005,0.04499,0.03644,-0.0652,1.0000,0.0965 -12.750,-0.8655,0.04361,0.03521,-0.0656,1.0000,0.1007 -12.500,-0.8470,0.04233,0.03392,-0.0652,1.0000,0.1047 -12.250,-0.8357,0.04096,0.03236,-0.0644,1.0000,0.1082 -12.000,-0.8006,0.04018,0.03187,-0.0645,1.0000,0.1146 -11.750,-0.7930,0.03922,0.03085,-0.0630,1.0000,0.1197 -11.500,-0.7789,0.03891,0.03076,-0.0608,1.0000,0.1257 -11.250,-0.8015,0.03926,0.03117,-0.0547,1.0000,0.1273 -11.000,-0.8000,0.03870,0.03056,-0.0528,0.9968,0.1334 -10.750,-0.7593,0.03743,0.02946,-0.0560,0.9890,0.1488 -10.500,-0.7229,0.03605,0.02844,-0.0591,0.9820,0.1702 -10.250,-0.6963,0.03425,0.02695,-0.0619,0.9732,0.1991 -10.000,-0.6784,0.03167,0.02481,-0.0651,0.9649,0.2431 -9.750,-0.6690,0.02908,0.02287,-0.0674,0.9543,0.3088 -9.500,-0.6343,0.03001,0.02444,-0.0677,0.9437,0.3893 -9.250,-0.6154,0.02999,0.02435,-0.0682,0.9307,0.4294 -9.000,-0.6183,0.02934,0.02358,-0.0662,0.9154,0.4536 -8.750,-0.5696,0.03180,0.02592,-0.0665,0.9072,0.4722 -8.500,-0.5932,0.03117,0.02518,-0.0607,0.8915,0.4877 -8.250,-0.4403,0.03947,0.03330,-0.0669,0.8927,0.4892 -8.000,-0.3597,0.04403,0.03766,-0.0675,0.8872,0.4906 -7.750,-0.2986,0.04719,0.04069,-0.0673,0.8779,0.4947 -7.500,-0.2901,0.04696,0.04035,-0.0651,0.8683,0.5090 -7.250,-0.2328,0.04939,0.04267,-0.0651,0.8591,0.5145 -7.000,-0.2245,0.04903,0.04221,-0.0630,0.8506,0.5281 -6.750,-0.2362,0.04808,0.04122,-0.0601,0.8401,0.5439 -6.500,-0.1706,0.04980,0.04280,-0.0613,0.8341,0.5475 -6.250,-0.1333,0.05039,0.04328,-0.0610,0.8280,0.5558 -6.000,-0.1211,0.05003,0.04289,-0.0598,0.8191,0.5671 -5.750,-0.0901,0.05020,0.04295,-0.0594,0.8129,0.5762 -5.500,-0.0769,0.04977,0.04246,-0.0581,0.8061,0.5865 -5.250,-0.0462,0.04982,0.04246,-0.0582,0.7986,0.5949 -5.000,-0.0415,0.04909,0.04166,-0.0562,0.7926,0.6052 -4.750,-0.0029,0.04919,0.04167,-0.0568,0.7878,0.6128 -4.500,-0.0201,0.04836,0.04086,-0.0537,0.7799,0.6232 -4.250,0.0349,0.04852,0.04094,-0.0558,0.7754,0.6297 -4.000,0.0411,0.04790,0.04026,-0.0540,0.7711,0.6373 -3.750,0.0511,0.04752,0.03987,-0.0529,0.7656,0.6449 -3.500,0.0871,0.04752,0.03986,-0.0542,0.7602,0.6512 -3.250,0.0901,0.04697,0.03928,-0.0523,0.7552,0.6568 -3.000,0.0739,0.04608,0.03834,-0.0481,0.7509,0.6630 -2.750,0.1249,0.04612,0.03835,-0.0507,0.7471,0.6680 -2.500,0.1372,0.04619,0.03845,-0.0501,0.7411,0.6722 -2.250,0.1350,0.04594,0.03821,-0.0476,0.7364,0.6765 -2.000,0.1133,0.04531,0.03756,-0.0427,0.7324,0.6795 -1.750,0.1078,0.04477,0.03698,-0.0390,0.7297,0.6838 -1.500,0.1272,0.04571,0.03799,-0.0391,0.7243,0.6868 -1.250,0.0964,0.04648,0.03882,-0.0327,0.7175,0.6891 -1.000,0.0713,0.04662,0.03897,-0.0266,0.7134,0.6927 -0.750,0.0347,0.04605,0.03837,-0.0197,0.7104,0.6975 -0.500,-0.1576,0.04692,0.03931,0.0039,0.7026,0.7042 -0.250,-0.1647,0.04754,0.03994,0.0075,0.7002,0.7071 0.000,-0.1612,0.04784,0.04023,0.0095,0.6976,0.7105 0.250,-0.1563,0.04805,0.04041,0.0106,0.6962,0.7147 0.500,-0.1358,0.04781,0.04011,0.0096,0.6935,0.7189 0.750,-0.0962,0.04730,0.03949,0.0062,0.6906,0.7232 1.000,-0.0764,0.04784,0.04005,0.0069,0.6881,0.7257 1.250,-0.0867,0.04884,0.04107,0.0098,0.6868,0.7286 1.500,-0.0901,0.04957,0.04181,0.0117,0.6848,0.7319 1.750,-0.0816,0.05029,0.04252,0.0119,0.6846,0.7356 2.000,-0.0718,0.05095,0.04315,0.0116,0.6838,0.7402 2.250,-0.0613,0.05167,0.04386,0.0114,0.6831,0.7444 2.500,-0.0495,0.05273,0.04496,0.0120,0.6848,0.7475 2.750,-0.0345,0.05383,0.04609,0.0120,0.6862,0.7509 3.000,-0.0126,0.05506,0.04734,0.0110,0.6876,0.7549 3.250,0.0263,0.05436,0.04660,0.0100,0.6675,0.7597 3.500,0.0410,0.05556,0.04780,0.0091,0.6678,0.7642 3.750,0.0514,0.05685,0.04914,0.0098,0.6681,0.7679 4.000,0.0759,0.05839,0.05074,0.0089,0.6691,0.7727 4.250,0.0984,0.05766,0.05001,0.0097,0.6507,0.7786 4.500,0.0976,0.05897,0.05133,0.0103,0.6473,0.7843 4.750,0.1119,0.06053,0.05297,0.0106,0.6483,0.7886 5.000,0.1294,0.06033,0.05281,0.0116,0.6332,0.7944 5.250,0.0925,0.06376,0.05631,0.0128,0.6566,0.8002 5.500,0.1743,0.06053,0.05306,0.0123,0.6031,0.8067 5.750,0.2228,0.06013,0.05272,0.0114,0.5941,0.8133 6.000,0.2204,0.06143,0.05405,0.0125,0.5831,0.8209 6.250,0.2593,0.06120,0.05390,0.0124,0.5758,0.8278 6.500,0.2612,0.06227,0.05503,0.0139,0.5643,0.8361 6.750,0.2988,0.06200,0.05483,0.0138,0.5573,0.8449 7.000,0.3005,0.06309,0.05599,0.0154,0.5459,0.8541 7.250,0.3349,0.06276,0.05574,0.0156,0.5390,0.8639 7.500,0.3405,0.06376,0.05681,0.0169,0.5275,0.8745 7.750,0.3747,0.06316,0.05630,0.0175,0.5207,0.8856 8.000,0.4268,0.06171,0.05494,0.0175,0.5176,0.8984 8.250,0.4149,0.06337,0.05669,0.0194,0.5025,0.9130 8.500,0.4691,0.06138,0.05483,0.0195,0.4995,0.9299 8.750,0.4730,0.06287,0.05645,0.0193,0.4841,0.9486 9.000,0.5019,0.06377,0.05749,0.0164,0.4700,0.9678 9.250,0.5781,0.06078,0.05465,0.0128,0.4655,1.0000 10.000,0.6726,0.05868,0.05273,0.0097,0.4336,1.0000 10.250,0.7401,0.05418,0.04835,0.0090,0.4310,1.0000 10.500,0.7614,0.05396,0.04819,0.0087,0.4174,1.0000 10.750,0.8318,0.04819,0.04254,0.0088,0.4149,1.0000 11.000,0.8632,0.04651,0.04092,0.0090,0.4007,1.0000 11.250,0.9052,0.04374,0.03821,0.0093,0.3842,1.0000 11.500,0.9457,0.04125,0.03564,0.0098,0.3575,1.0000 11.750,0.9708,0.04036,0.03444,0.0108,0.3180,1.0000 12.000,0.9776,0.04136,0.03499,0.0121,0.2781,1.0000 12.250,0.9750,0.04351,0.03678,0.0133,0.2449,1.0000 12.500,0.9717,0.04599,0.03901,0.0141,0.2170,1.0000 12.750,0.9739,0.04804,0.04072,0.0149,0.1936,1.0000 13.000,0.9775,0.05017,0.04268,0.0155,0.1739,1.0000 13.250,0.9841,0.05207,0.04440,0.0160,0.1574,1.0000 13.500,0.9932,0.05381,0.04600,0.0164,0.1434,1.0000 13.750,1.0061,0.05530,0.04734,0.0169,0.1319,1.0000 14.000,1.0239,0.05644,0.04828,0.0173,0.1218,1.0000 14.250,1.0351,0.05823,0.05010,0.0175,0.1141,1.0000 14.500,1.0533,0.05955,0.05138,0.0178,0.1071,1.0000 14.750,1.0717,0.06081,0.05255,0.0180,0.1013,1.0000 15.000,1.0888,0.06246,0.05425,0.0182,0.0962,1.0000 15.250,1.1031,0.06421,0.05606,0.0183,0.0921,1.0000 15.500,1.1301,0.06535,0.05709,0.0184,0.0878,1.0000 15.750,1.1335,0.06806,0.06003,0.0183,0.0850,1.0000 16.000,1.1445,0.07021,0.06228,0.0182,0.0823,1.0000 16.250,1.1764,0.07141,0.06333,0.0182,0.0792,1.0000 16.500,1.1662,0.07522,0.06747,0.0180,0.0780,1.0000 16.750,1.1575,0.07915,0.07169,0.0175,0.0766,1.0000 17.000,1.1506,0.08311,0.07588,0.0168,0.0754,1.0000 17.250,1.1493,0.08656,0.07948,0.0161,0.0739,1.0000 17.500,1.1584,0.08914,0.08208,0.0156,0.0723,1.0000 17.750,1.1714,0.09202,0.08498,0.0152,0.0710,1.0000 18.000,1.1482,0.09786,0.09112,0.0134,0.0708,1.0000 18.250,1.1216,0.10444,0.09799,0.0109,0.0708,1.0000 18.500,1.0930,0.11173,0.10556,0.0078,0.0709,1.0000 18.750,1.0607,0.12008,0.11415,0.0037,0.0710,1.0000