Xfoil polar. Reynolds number fixed. Mach number fixed Polar key,xf-raf89-il-50000 Airfoil,raf89-il Reynolds number,50000 Ncrit,9 Mach,0 Max Cl/Cd,1.64072 Max Cl/Cd alpha,11.75 Url,http://airfoiltools.com/polar/csv?polar=xf-raf89-il-50000 Alpha,Cl,Cd,Cdp,Cm,Top_Xtr,Bot_Xtr -9.000,-0.3125,0.14147,0.13385,0.0014,1.0000,0.4877 -8.750,-0.2942,0.13951,0.13189,0.0019,1.0000,0.4969 -8.500,-0.3342,0.14039,0.13281,0.0056,1.0000,0.5062 -8.250,-0.2792,0.13576,0.12812,0.0008,0.9955,0.5158 -8.000,-0.3066,0.13603,0.12838,0.0020,0.9921,0.5268 -7.750,-0.2426,0.13096,0.12322,-0.0048,0.9836,0.5369 -7.500,-0.2790,0.13201,0.12426,-0.0020,0.9802,0.5473 -6.750,-0.3245,0.11628,0.10832,-0.0078,0.9668,0.4848 -6.500,-0.2998,0.11294,0.10491,-0.0118,0.9602,0.4821 -6.250,-0.3009,0.10993,0.10186,-0.0124,0.9545,0.4795 -6.000,-0.3127,0.10677,0.09867,-0.0121,0.9489,0.4772 -5.750,-0.3237,0.10361,0.09547,-0.0122,0.9440,0.4783 -5.250,-0.3811,0.09637,0.08817,-0.0086,0.9368,0.4819 -5.000,-0.4657,0.08970,0.08149,-0.0026,0.9397,0.4844 -4.750,-0.6427,0.08598,0.07814,0.0280,1.0000,0.4741 -4.500,-0.8794,0.06365,0.05542,0.0466,1.0000,0.4835 -4.250,-0.8631,0.06404,0.05586,0.0480,1.0000,0.4899 -4.000,-0.8532,0.06392,0.05574,0.0499,1.0000,0.4971 -3.750,-0.8901,0.05889,0.05046,0.0553,1.0000,0.5074 -3.500,-0.8637,0.06043,0.05211,0.0559,1.0000,0.5135 -3.250,-0.8796,0.05757,0.04906,0.0597,1.0000,0.5242 -3.000,-0.8669,0.05765,0.04918,0.0612,1.0000,0.5314 -2.750,-0.8584,0.05736,0.04887,0.0631,1.0000,0.5401 -2.500,-0.8626,0.05566,0.04703,0.0659,1.0000,0.5505 -2.250,-0.8407,0.05659,0.04802,0.0661,0.9980,0.5592 -2.000,-0.8239,0.05660,0.04788,0.0653,0.9900,0.5724 -1.750,-0.7908,0.05815,0.04949,0.0634,0.9791,0.5831 -1.500,-0.7774,0.05801,0.04923,0.0638,0.9704,0.5960 -1.250,-0.7420,0.06014,0.05136,0.0612,0.9586,0.6094 -1.000,-0.7307,0.05949,0.05069,0.0626,0.9469,0.6209 -0.750,-0.7087,0.06067,0.05180,0.0620,0.9385,0.6362 -0.500,-0.6840,0.06126,0.05246,0.0618,0.9240,0.6475 -0.250,-0.6750,0.06131,0.05242,0.0633,0.9160,0.6634 0.000,-0.6428,0.06283,0.05403,0.0621,0.9019,0.6764 0.250,-0.6322,0.06308,0.05425,0.0637,0.8938,0.6911 0.500,-0.6153,0.06350,0.05461,0.0645,0.8799,0.7095 0.750,-0.5904,0.06505,0.05625,0.0643,0.8720,0.7225 1.000,-0.5717,0.06547,0.05667,0.0650,0.8581,0.7396 1.250,-0.5488,0.06736,0.05853,0.0649,0.8516,0.7592 1.500,-0.5370,0.06694,0.05815,0.0667,0.8369,0.7750 1.750,-0.4850,0.07114,0.06236,0.0619,0.8292,0.7944 2.000,-0.4930,0.06914,0.06038,0.0662,0.8176,0.8098 2.250,-0.4442,0.07240,0.06363,0.0619,0.8071,0.8301 2.500,-0.4225,0.07321,0.06448,0.0607,0.7976,0.8427 2.750,-0.3654,0.07653,0.06780,0.0542,0.7852,0.8580 3.000,-0.3403,0.07853,0.06978,0.0524,0.7791,0.8746 3.250,-0.2730,0.08194,0.07323,0.0430,0.7630,0.8823 3.500,-0.2233,0.08599,0.07724,0.0370,0.7570,0.8973 3.750,-0.1810,0.08764,0.07894,0.0309,0.7416,0.9041 4.000,-0.1113,0.09324,0.08449,0.0220,0.7345,0.9191 4.250,-0.1030,0.09288,0.08419,0.0205,0.7223,0.9261 4.500,-0.0411,0.09711,0.08839,0.0128,0.7129,0.9400 4.750,-0.0246,0.09848,0.08980,0.0097,0.7053,0.9480 5.000,0.0144,0.10085,0.09218,0.0046,0.6940,0.9598 5.250,0.0745,0.10573,0.09706,-0.0042,0.6879,0.9706 5.500,0.0798,0.10590,0.09727,-0.0057,0.6762,0.9791 5.750,0.1471,0.11063,0.10202,-0.0152,0.6680,0.9906 6.000,0.1566,0.11209,0.10352,-0.0182,0.6602,0.9989 6.250,0.1608,0.11259,0.10398,-0.0175,0.6515,1.0000 6.500,0.1762,0.11428,0.10562,-0.0174,0.6465,1.0000 6.750,0.1587,0.11425,0.10554,-0.0141,0.6430,1.0000 7.000,0.1360,0.11270,0.10395,-0.0097,0.6334,1.0000 7.250,0.1343,0.11264,0.10381,-0.0072,0.6274,1.0000 7.500,0.1355,0.11368,0.10473,-0.0045,0.6243,1.0000 7.750,0.0861,0.11002,0.10093,0.0032,0.6187,1.0000 8.000,0.0846,0.11014,0.10091,0.0055,0.6100,1.0000 8.250,0.1106,0.11327,0.10392,0.0048,0.6045,1.0000 8.500,0.0941,0.11297,0.10354,0.0076,0.5984,1.0000 8.750,0.1023,0.11418,0.10467,0.0083,0.5894,1.0000 9.000,0.1321,0.11796,0.10837,0.0071,0.5843,1.0000 9.250,0.1170,0.11773,0.10809,0.0094,0.5775,1.0000 9.500,0.1299,0.11941,0.10972,0.0096,0.5685,1.0000 9.750,0.1626,0.12392,0.11417,0.0081,0.5639,1.0000 10.000,0.1431,0.12302,0.11324,0.0104,0.5561,1.0000 10.250,0.1603,0.12519,0.11537,0.0102,0.5477,1.0000 10.750,0.1712,0.12868,0.11880,0.0109,0.5349,1.0000 11.000,0.1923,0.13139,0.12147,0.0104,0.5272,1.0000 11.250,0.2140,0.13553,0.12559,0.0095,0.5233,1.0000 11.500,0.2010,0.13465,0.12469,0.0110,0.5132,1.0000 11.750,0.2266,0.13811,0.12814,0.0101,0.5066,1.0000