Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-s831-nr-500000-n5 Airfoil,s831-nr Reynolds number,500000 Ncrit,5 Mach,0 Max Cl/Cd,112.579 Max Cl/Cd alpha,6.25 Url,http://airfoiltools.com/polar/csv?polar=xf-s831-nr-500000-n5 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -11.250,0.0934,0.08653,0.08275,-0.1706,0.7790,0.0113 -11.000,0.0953,0.08297,0.07919,-0.1721,0.7759,0.0113 -10.750,0.0974,0.07952,0.07575,-0.1735,0.7723,0.0113 -10.500,0.0985,0.07596,0.07219,-0.1750,0.7689,0.0113 -10.250,0.0986,0.07216,0.06839,-0.1768,0.7656,0.0113 -10.000,0.0973,0.06792,0.06414,-0.1793,0.7626,0.0113 -9.750,0.0910,0.06311,0.05934,-0.1823,0.7595,0.0113 -9.500,0.0825,0.05920,0.05539,-0.1842,0.7561,0.0113 -8.500,0.0449,0.03135,0.02749,-0.1734,0.7381,0.0080 -8.000,0.0061,0.04221,0.03793,-0.1766,0.7378,0.0079 -7.750,0.0063,0.04005,0.03562,-0.1749,0.7353,0.0076 -7.250,0.0039,0.03099,0.02599,-0.1689,0.7304,0.0057 -7.000,0.0128,0.02856,0.02333,-0.1672,0.7281,0.0056 -6.750,0.0244,0.02579,0.02028,-0.1655,0.7260,0.0055 -6.500,0.0381,0.02248,0.01662,-0.1637,0.7240,0.0053 -6.250,0.0559,0.01956,0.01328,-0.1622,0.7223,0.0051 -6.000,0.0774,0.01761,0.01100,-0.1613,0.7207,0.0051 -5.750,0.0996,0.01637,0.00956,-0.1605,0.7190,0.0051 -5.500,0.1217,0.01551,0.00857,-0.1598,0.7173,0.0051 -5.250,0.1434,0.01478,0.00773,-0.1590,0.7154,0.0051 -5.000,0.1652,0.01418,0.00704,-0.1583,0.7135,0.0052 -4.750,0.1875,0.01367,0.00646,-0.1578,0.7116,0.0053 -4.500,0.2107,0.01324,0.00596,-0.1575,0.7097,0.0054 -4.250,0.2349,0.01286,0.00550,-0.1574,0.7081,0.0056 -4.000,0.2603,0.01255,0.00511,-0.1575,0.7067,0.0058 -3.750,0.2856,0.01220,0.00472,-0.1576,0.7052,0.0066 -3.500,0.3111,0.01196,0.00445,-0.1577,0.7037,0.0075 -3.250,0.3371,0.01170,0.00418,-0.1578,0.7022,0.0113 -3.000,0.3635,0.01150,0.00401,-0.1581,0.7006,0.0189 -2.750,0.3902,0.01134,0.00390,-0.1585,0.6991,0.0307 -2.500,0.4173,0.01120,0.00380,-0.1589,0.6976,0.0459 -2.250,0.4447,0.01104,0.00365,-0.1594,0.6962,0.0622 -2.000,0.4730,0.00916,0.00316,-0.1623,0.6948,0.5295 -1.750,0.5016,0.00911,0.00325,-0.1628,0.6934,0.6047 -1.500,0.5305,0.00919,0.00330,-0.1634,0.6921,0.6273 -1.250,0.5585,0.00926,0.00335,-0.1638,0.6908,0.6390 -1.000,0.5860,0.00934,0.00339,-0.1641,0.6894,0.6496 -0.750,0.6130,0.00942,0.00348,-0.1642,0.6881,0.6584 -0.500,0.6407,0.00950,0.00351,-0.1646,0.6867,0.6648 -0.250,0.6680,0.00955,0.00356,-0.1649,0.6853,0.6679 0.000,0.6956,0.00959,0.00359,-0.1652,0.6840,0.6697 0.250,0.7234,0.00965,0.00362,-0.1657,0.6828,0.6718 0.500,0.7513,0.00970,0.00365,-0.1661,0.6815,0.6740 0.750,0.7795,0.00976,0.00368,-0.1666,0.6803,0.6761 1.000,0.8082,0.00983,0.00372,-0.1673,0.6791,0.6781 1.250,0.8373,0.00990,0.00376,-0.1680,0.6779,0.6800 1.500,0.8653,0.00997,0.00384,-0.1685,0.6767,0.6817 1.750,0.8911,0.01004,0.00395,-0.1686,0.6755,0.6835 2.000,0.9172,0.01012,0.00406,-0.1687,0.6742,0.6855 2.250,0.9435,0.01020,0.00417,-0.1688,0.6729,0.6877 2.500,0.9699,0.01028,0.00429,-0.1690,0.6716,0.6902 2.750,0.9965,0.01037,0.00440,-0.1693,0.6703,0.6927 3.250,1.0495,0.01054,0.00462,-0.1697,0.6676,0.6969 3.500,1.0763,0.01062,0.00476,-0.1700,0.6663,0.6989 3.750,1.1038,0.01072,0.00489,-0.1704,0.6653,0.7011 4.000,1.1322,0.01082,0.00502,-0.1711,0.6642,0.7034 4.250,1.1615,0.01094,0.00517,-0.1719,0.6632,0.7059 4.500,1.1868,0.01106,0.00535,-0.1719,0.6620,0.7085 4.750,1.2089,0.01119,0.00556,-0.1713,0.6604,0.7111 5.000,1.2318,0.01131,0.00578,-0.1708,0.6589,0.7134 5.250,1.2552,0.01144,0.00600,-0.1704,0.6574,0.7159 5.500,1.2783,0.01157,0.00620,-0.1699,0.6558,0.7185 5.750,1.2982,0.01161,0.00629,-0.1687,0.6524,0.7213 6.000,1.3078,0.01162,0.00634,-0.1653,0.6452,0.7243 6.250,1.3138,0.01167,0.00637,-0.1611,0.6345,0.7271 6.500,1.3139,0.01192,0.00671,-0.1559,0.6229,0.7300 6.750,1.3233,0.01219,0.00704,-0.1528,0.6133,0.7333 7.000,1.3381,0.01244,0.00731,-0.1508,0.6060,0.7366 7.250,1.3505,0.01279,0.00775,-0.1484,0.5978,0.7400 7.500,1.3623,0.01316,0.00818,-0.1460,0.5883,0.7429 7.750,1.3709,0.01365,0.00871,-0.1430,0.5749,0.7458 8.000,1.3746,0.01434,0.00940,-0.1393,0.5545,0.7492 8.250,1.3625,0.01569,0.01060,-0.1330,0.5173,0.7531 8.500,1.3471,0.01747,0.01222,-0.1267,0.4812,0.7569 8.750,1.3194,0.02012,0.01465,-0.1190,0.4367,0.7605 9.000,1.3006,0.02267,0.01704,-0.1132,0.3992,0.7642 9.250,1.2822,0.02544,0.01962,-0.1078,0.3598,0.7680 9.500,1.2696,0.02805,0.02207,-0.1035,0.3227,0.7715 9.750,1.2592,0.03062,0.02449,-0.0997,0.2862,0.7747 10.000,1.2509,0.03317,0.02686,-0.0964,0.2475,0.7781 10.250,1.2491,0.03532,0.02888,-0.0938,0.2169,0.7819 10.500,1.2486,0.03746,0.03088,-0.0916,0.1871,0.7858 11.000,1.2530,0.04143,0.03463,-0.0878,0.1334,0.7935 11.250,1.2583,0.04323,0.03635,-0.0864,0.1122,0.7977 11.750,1.2726,0.04663,0.03967,-0.0839,0.0808,0.8058 12.000,1.2815,0.04822,0.04126,-0.0830,0.0700,0.8103 12.250,1.2905,0.04983,0.04286,-0.0820,0.0598,0.8152 12.500,1.2998,0.05141,0.04445,-0.0811,0.0506,0.8202 12.750,1.3082,0.05310,0.04615,-0.0802,0.0421,0.8258 13.250,1.3235,0.05669,0.04973,-0.0784,0.0255,0.8376 13.500,1.3311,0.05854,0.05160,-0.0776,0.0198,0.8442 13.750,1.3381,0.06045,0.05353,-0.0768,0.0145,0.8513 14.000,1.3462,0.06226,0.05539,-0.0761,0.0113,0.8598 14.250,1.3549,0.06399,0.05722,-0.0754,0.0096,0.8713 14.500,1.3624,0.06586,0.05918,-0.0746,0.0078,0.8879 14.750,1.3678,0.06755,0.06101,-0.0736,0.0061,0.9819 15.000,1.3761,0.06949,0.06301,-0.0731,0.0053,1.0000 15.250,1.3832,0.07165,0.06523,-0.0727,0.0043,1.0000 15.500,1.3912,0.07371,0.06739,-0.0724,0.0036,1.0000 15.750,1.3974,0.07600,0.06975,-0.0721,0.0029,1.0000 16.000,1.4032,0.07837,0.07219,-0.0718,0.0025,1.0000 16.250,1.4091,0.08076,0.07467,-0.0716,0.0021,1.0000 16.500,1.4138,0.08331,0.07731,-0.0714,0.0018,1.0000 16.750,1.4166,0.08613,0.08022,-0.0711,0.0015,1.0000 17.000,1.4207,0.08884,0.08304,-0.0711,0.0014,1.0000 17.250,1.4244,0.09159,0.08591,-0.0711,0.0013,1.0000 17.500,1.4269,0.09458,0.08900,-0.0712,0.0012,1.0000 17.750,1.4291,0.09763,0.09217,-0.0714,0.0011,1.0000 18.000,1.4303,0.10085,0.09553,-0.0717,0.0010,1.0000 18.250,1.4309,0.10421,0.09901,-0.0721,0.0010,1.0000 18.500,1.4307,0.10770,0.10262,-0.0726,0.0009,1.0000 18.750,1.4302,0.11125,0.10629,-0.0733,0.0009,1.0000 19.000,1.4274,0.11521,0.11037,-0.0741,0.0009,1.0000 19.250,1.4253,0.11911,0.11440,-0.0751,0.0009,1.0000