Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-naca23021-il-500000-n5 Airfoil,naca23021-il Reynolds number,500000 Ncrit,5 Mach,0 Max Cl/Cd,50.5495 Max Cl/Cd alpha,6 Url,http://airfoiltools.com/polar/csv?polar=xf-naca23021-il-500000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -19.750,-1.1335,0.08855,0.08311,-0.0445,1.0000,0.0408 -19.500,-1.1343,0.08519,0.07967,-0.0456,1.0000,0.0413 -19.250,-1.1353,0.08177,0.07618,-0.0467,1.0000,0.0417 -19.000,-1.1348,0.07859,0.07293,-0.0477,1.0000,0.0421 -18.750,-1.1345,0.07541,0.06967,-0.0486,1.0000,0.0426 -18.500,-1.1353,0.07215,0.06634,-0.0496,1.0000,0.0430 -18.250,-1.1377,0.06873,0.06288,-0.0505,1.0000,0.0434 -18.000,-1.1392,0.06544,0.05953,-0.0513,1.0000,0.0439 -17.750,-1.1395,0.06233,0.05637,-0.0521,1.0000,0.0443 -17.500,-1.1386,0.05943,0.05342,-0.0526,1.0000,0.0448 -17.250,-1.1370,0.05664,0.05056,-0.0532,1.0000,0.0453 -17.000,-1.1348,0.05394,0.04779,-0.0536,1.0000,0.0458 -16.750,-1.1313,0.05144,0.04522,-0.0539,1.0000,0.0464 -16.500,-1.1270,0.04907,0.04279,-0.0541,1.0000,0.0469 -16.250,-1.1217,0.04684,0.04048,-0.0543,1.0000,0.0475 -16.000,-1.1206,0.04423,0.03783,-0.0544,1.0000,0.0480 -15.750,-1.1177,0.04187,0.03543,-0.0544,1.0000,0.0486 -15.500,-1.1132,0.03973,0.03324,-0.0542,1.0000,0.0492 -15.250,-1.1075,0.03777,0.03123,-0.0539,1.0000,0.0498 -15.000,-1.1008,0.03595,0.02936,-0.0535,1.0000,0.0505 -14.750,-1.0930,0.03428,0.02764,-0.0530,1.0000,0.0512 -14.500,-1.0844,0.03275,0.02606,-0.0524,1.0000,0.0519 -14.250,-1.0753,0.03132,0.02458,-0.0517,1.0000,0.0527 -14.000,-1.0690,0.02974,0.02297,-0.0508,1.0000,0.0535 -13.750,-1.0612,0.02836,0.02157,-0.0497,1.0000,0.0543 -13.500,-1.0527,0.02714,0.02031,-0.0484,1.0000,0.0552 -13.250,-1.0436,0.02604,0.01918,-0.0470,1.0000,0.0561 -13.000,-1.0346,0.02507,0.01818,-0.0453,1.0000,0.0570 -12.750,-1.0263,0.02422,0.01729,-0.0432,1.0000,0.0580 -12.500,-1.0228,0.02332,0.01639,-0.0404,1.0000,0.0590 -12.250,-1.0206,0.02257,0.01563,-0.0371,1.0000,0.0602 -12.000,-1.0059,0.02179,0.01483,-0.0360,0.9979,0.0618 -11.500,-0.9552,0.02018,0.01321,-0.0376,0.9914,0.0664 -11.250,-0.9318,0.01948,0.01251,-0.0377,0.9859,0.0693 -11.000,-0.9075,0.01877,0.01183,-0.0380,0.9803,0.0734 -10.750,-0.8834,0.01813,0.01121,-0.0381,0.9742,0.0789 -10.500,-0.8606,0.01753,0.01064,-0.0379,0.9662,0.0855 -10.250,-0.8366,0.01700,0.01013,-0.0376,0.9585,0.0921 -10.000,-0.8152,0.01650,0.00963,-0.0369,0.9486,0.0980 -9.750,-0.7944,0.01604,0.00918,-0.0358,0.9381,0.1030 -9.500,-0.7737,0.01561,0.00873,-0.0346,0.9267,0.1084 -9.250,-0.7555,0.01519,0.00830,-0.0329,0.9124,0.1138 -9.000,-0.7363,0.01483,0.00791,-0.0313,0.8978,0.1194 -8.750,-0.7181,0.01443,0.00750,-0.0295,0.8831,0.1258 -8.500,-0.6998,0.01411,0.00716,-0.0277,0.8682,0.1326 -8.250,-0.6822,0.01378,0.00683,-0.0258,0.8543,0.1417 -8.000,-0.6640,0.01343,0.00649,-0.0239,0.8404,0.1544 -7.750,-0.6451,0.01303,0.00615,-0.0223,0.8258,0.1716 -7.500,-0.6252,0.01266,0.00583,-0.0208,0.8121,0.1910 -7.250,-0.6045,0.01236,0.00555,-0.0194,0.7976,0.2094 -7.000,-0.5828,0.01207,0.00530,-0.0182,0.7831,0.2276 -6.750,-0.5608,0.01181,0.00508,-0.0171,0.7702,0.2460 -6.500,-0.5378,0.01160,0.00489,-0.0160,0.7563,0.2626 -6.250,-0.5138,0.01143,0.00472,-0.0152,0.7430,0.2765 -6.000,-0.4900,0.01128,0.00455,-0.0143,0.7299,0.2886 -5.750,-0.4643,0.01117,0.00442,-0.0137,0.7178,0.2984 -5.500,-0.4401,0.01103,0.00427,-0.0128,0.7057,0.3090 -5.250,-0.4147,0.01092,0.00414,-0.0122,0.6927,0.3193 -5.000,-0.3899,0.01080,0.00401,-0.0115,0.6809,0.3300 -4.750,-0.3643,0.01070,0.00390,-0.0109,0.6685,0.3399 -4.500,-0.3395,0.01059,0.00379,-0.0101,0.6550,0.3524 -4.250,-0.3151,0.01051,0.00368,-0.0093,0.6386,0.3645 -4.000,-0.2895,0.01044,0.00359,-0.0087,0.6222,0.3756 -3.750,-0.2645,0.01036,0.00350,-0.0080,0.6080,0.3872 -3.250,-0.2136,0.01023,0.00337,-0.0068,0.5804,0.4129 -3.000,-0.1883,0.01018,0.00331,-0.0061,0.5673,0.4255 -2.750,-0.1623,0.01017,0.00326,-0.0056,0.5528,0.4381 -2.500,-0.1368,0.01012,0.00322,-0.0050,0.5393,0.4503 -2.250,-0.1111,0.01012,0.00319,-0.0044,0.5260,0.4630 -2.000,-0.0854,0.01009,0.00317,-0.0038,0.5121,0.4771 -1.750,-0.0597,0.01008,0.00315,-0.0033,0.4991,0.4892 -1.500,-0.0336,0.01011,0.00315,-0.0028,0.4862,0.5003 -1.250,-0.0074,0.01010,0.00314,-0.0023,0.4746,0.5105 -1.000,0.0184,0.01015,0.00315,-0.0018,0.4622,0.5211 -0.750,0.0450,0.01016,0.00316,-0.0014,0.4509,0.5303 -0.500,0.0708,0.01020,0.00318,-0.0008,0.4392,0.5410 -0.250,0.0970,0.01025,0.00320,-0.0004,0.4260,0.5509 0.000,0.1227,0.01029,0.00323,0.0001,0.4136,0.5615 0.500,0.1747,0.01041,0.00331,0.0011,0.3892,0.5811 0.750,0.2004,0.01051,0.00337,0.0016,0.3762,0.5920 1.000,0.2259,0.01055,0.00342,0.0021,0.3636,0.6036 1.250,0.2519,0.01065,0.00349,0.0026,0.3520,0.6148 1.500,0.2767,0.01074,0.00356,0.0032,0.3389,0.6258 1.750,0.3027,0.01083,0.00364,0.0036,0.3264,0.6369 2.000,0.3275,0.01093,0.00373,0.0043,0.3141,0.6485 2.500,0.3774,0.01115,0.00394,0.0055,0.2909,0.6749 2.750,0.4021,0.01129,0.00406,0.0061,0.2809,0.6876 3.000,0.4271,0.01140,0.00419,0.0067,0.2708,0.7009 3.250,0.4512,0.01155,0.00433,0.0074,0.2608,0.7144 3.500,0.4754,0.01168,0.00448,0.0082,0.2513,0.7320 4.000,0.5226,0.01196,0.00483,0.0099,0.2331,0.7712 4.250,0.5464,0.01211,0.00502,0.0106,0.2247,0.7869 4.500,0.5698,0.01232,0.00521,0.0115,0.2155,0.8008 4.750,0.5935,0.01249,0.00541,0.0122,0.2071,0.8148 5.000,0.6162,0.01272,0.00563,0.0132,0.1978,0.8277 5.250,0.6387,0.01296,0.00585,0.0141,0.1878,0.8415 5.500,0.6601,0.01323,0.00612,0.0152,0.1760,0.8544 5.750,0.6807,0.01352,0.00638,0.0165,0.1654,0.8664 6.000,0.6991,0.01383,0.00667,0.0182,0.1538,0.8793 6.250,0.7165,0.01421,0.00701,0.0200,0.1403,0.8917 6.500,0.7327,0.01471,0.00743,0.0218,0.1240,0.9048 6.750,0.7427,0.01558,0.00813,0.0245,0.0899,0.9175 7.000,0.7526,0.01648,0.00891,0.0271,0.0665,0.9303 7.250,0.7712,0.01700,0.00942,0.0283,0.0631,0.9422 7.500,0.7930,0.01751,0.00994,0.0289,0.0612,0.9518 7.750,0.8133,0.01804,0.01048,0.0296,0.0597,0.9620 8.000,0.8383,0.01863,0.01108,0.0293,0.0584,0.9688 8.250,0.8611,0.01917,0.01163,0.0294,0.0576,0.9772 8.500,0.8883,0.01978,0.01226,0.0285,0.0568,0.9821 8.750,0.9132,0.02043,0.01293,0.0279,0.0561,0.9881 9.000,0.9386,0.02115,0.01367,0.0271,0.0555,0.9926 9.250,0.9652,0.02194,0.01448,0.0258,0.0549,0.9960 9.500,0.9902,0.02284,0.01539,0.0248,0.0543,0.9998 9.750,0.9931,0.02356,0.01614,0.0278,0.0540,1.0000 10.000,0.9965,0.02440,0.01700,0.0307,0.0537,1.0000 10.250,1.0015,0.02537,0.01800,0.0329,0.0533,1.0000 10.500,1.0086,0.02642,0.01908,0.0347,0.0531,1.0000 10.750,1.0181,0.02748,0.02017,0.0359,0.0529,1.0000 11.000,1.0278,0.02862,0.02136,0.0370,0.0527,1.0000 11.250,1.0372,0.02988,0.02266,0.0379,0.0525,1.0000 11.500,1.0462,0.03125,0.02408,0.0386,0.0522,1.0000 11.750,1.0545,0.03276,0.02563,0.0392,0.0520,1.0000 12.000,1.0619,0.03441,0.02733,0.0397,0.0518,1.0000 12.250,1.0686,0.03618,0.02916,0.0400,0.0516,1.0000 12.500,1.0746,0.03809,0.03113,0.0402,0.0514,1.0000 12.750,1.0797,0.04015,0.03324,0.0404,0.0512,1.0000 13.000,1.0840,0.04236,0.03551,0.0404,0.0511,1.0000 13.250,1.0874,0.04473,0.03794,0.0403,0.0509,1.0000 13.500,1.0900,0.04726,0.04053,0.0400,0.0507,1.0000 13.750,1.0916,0.04994,0.04328,0.0397,0.0506,1.0000 14.000,1.0923,0.05279,0.04620,0.0392,0.0504,1.0000 14.250,1.0924,0.05577,0.04924,0.0387,0.0503,1.0000 14.500,1.0920,0.05886,0.05240,0.0380,0.0502,1.0000 14.750,1.0911,0.06204,0.05565,0.0373,0.0500,1.0000 15.000,1.0901,0.06526,0.05894,0.0365,0.0499,1.0000 15.250,1.0888,0.06859,0.06233,0.0357,0.0498,1.0000 15.500,1.0870,0.07200,0.06580,0.0348,0.0497,1.0000 15.750,1.0858,0.07535,0.06921,0.0338,0.0495,1.0000 16.000,1.0846,0.07870,0.07262,0.0329,0.0494,1.0000 16.250,1.0835,0.08210,0.07608,0.0319,0.0493,1.0000 16.500,1.0835,0.08534,0.07937,0.0309,0.0492,1.0000 16.750,1.0830,0.08867,0.08275,0.0298,0.0491,1.0000