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EPPLER 668 AIRFOIL (e668-il) Xfoil prediction polar at RE=1,000,000 Ncrit=5


Details Polar file
Airfoil: EPPLER 668 AIRFOIL (e668-il)
Reynolds number: 1,000,000
Max Cl/Cd: 135.79 at α=2.25°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-e668-il-1000000-n5.txt
Download as CSV file: xf-e668-il-1000000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER 668 AIRFOIL                              
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     1.000 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -13.750  -0.3661   0.07548   0.07250  -0.1218   0.8178   0.0026
 -13.500  -0.4336   0.05992   0.05684  -0.1295   0.8167   0.0026
 -13.250  -0.4717   0.04802   0.04478  -0.1372   0.8154   0.0025
 -13.000  -0.4966   0.04002   0.03660  -0.1434   0.8140   0.0025
 -12.750  -0.5154   0.03514   0.03157  -0.1460   0.8124   0.0025
 -12.500  -0.5327   0.03150   0.02774  -0.1463   0.8109   0.0025
 -12.250  -0.5423   0.02900   0.02509  -0.1453   0.8092   0.0025
 -12.000  -0.5455   0.02721   0.02316  -0.1438   0.8076   0.0025
 -11.750  -0.5505   0.02545   0.02124  -0.1415   0.8060   0.0025
 -11.500  -0.5555   0.02396   0.01959  -0.1385   0.8044   0.0025
 -11.250  -0.5548   0.02284   0.01833  -0.1357   0.8031   0.0025
 -11.000  -0.5468   0.02161   0.01696  -0.1339   0.8023   0.0025
 -10.750  -0.5344   0.02056   0.01578  -0.1325   0.8013   0.0025
 -10.500  -0.5207   0.01947   0.01455  -0.1312   0.8002   0.0026
 -10.250  -0.5034   0.01862   0.01359  -0.1303   0.7992   0.0026
 -10.000  -0.4862   0.01767   0.01249  -0.1293   0.7983   0.0026
  -9.750  -0.4668   0.01686   0.01157  -0.1286   0.7973   0.0026
  -9.500  -0.4454   0.01621   0.01083  -0.1281   0.7962   0.0026
  -9.250  -0.4239   0.01553   0.01005  -0.1276   0.7951   0.0026
  -9.000  -0.4014   0.01490   0.00933  -0.1271   0.7941   0.0027
  -8.750  -0.3782   0.01433   0.00867  -0.1268   0.7932   0.0027
  -8.500  -0.3545   0.01379   0.00804  -0.1265   0.7922   0.0028
  -8.250  -0.3299   0.01333   0.00751  -0.1263   0.7912   0.0028
  -8.000  -0.3049   0.01290   0.00702  -0.1262   0.7901   0.0028
  -7.750  -0.2794   0.01251   0.00655  -0.1261   0.7891   0.0028
  -7.500  -0.2545   0.01200   0.00596  -0.1259   0.7880   0.0030
  -7.250  -0.2285   0.01163   0.00555  -0.1259   0.7873   0.0032
  -7.000  -0.2022   0.01129   0.00519  -0.1259   0.7864   0.0035
  -6.750  -0.1755   0.01099   0.00487  -0.1260   0.7855   0.0038
  -6.500  -0.1486   0.01072   0.00457  -0.1260   0.7845   0.0042
  -6.250  -0.1215   0.01046   0.00428  -0.1261   0.7835   0.0048
  -6.000  -0.0943   0.01020   0.00401  -0.1263   0.7825   0.0056
  -5.750  -0.0668   0.00997   0.00378  -0.1264   0.7814   0.0068
  -5.500  -0.0393   0.00975   0.00355  -0.1266   0.7802   0.0090
  -5.250  -0.0116   0.00955   0.00335  -0.1268   0.7790   0.0114
  -5.000   0.0163   0.00936   0.00317  -0.1270   0.7780   0.0148
  -4.750   0.0442   0.00918   0.00300  -0.1273   0.7769   0.0186
  -4.500   0.0722   0.00899   0.00283  -0.1275   0.7757   0.0243
  -4.250   0.1002   0.00879   0.00267  -0.1278   0.7745   0.0344
  -4.000   0.1281   0.00857   0.00252  -0.1281   0.7731   0.0529
  -3.750   0.1560   0.00833   0.00239  -0.1284   0.7717   0.0783
  -3.500   0.1840   0.00812   0.00226  -0.1287   0.7702   0.1010
  -3.250   0.2121   0.00792   0.00215  -0.1290   0.7684   0.1258
  -3.000   0.2403   0.00772   0.00205  -0.1293   0.7666   0.1557
  -2.750   0.2685   0.00748   0.00195  -0.1297   0.7647   0.1988
  -2.500   0.2968   0.00726   0.00186  -0.1301   0.7626   0.2418
  -2.250   0.3252   0.00704   0.00176  -0.1305   0.7605   0.2885
  -2.000   0.3538   0.00684   0.00168  -0.1309   0.7583   0.3337
  -1.750   0.3824   0.00664   0.00163  -0.1314   0.7561   0.3852
  -1.500   0.4109   0.00643   0.00158  -0.1318   0.7536   0.4380
  -1.250   0.4396   0.00623   0.00154  -0.1323   0.7507   0.4918
  -1.000   0.4684   0.00603   0.00150  -0.1327   0.7478   0.5487
  -0.750   0.4972   0.00586   0.00146  -0.1331   0.7447   0.6023
  -0.500   0.5258   0.00573   0.00145  -0.1335   0.7416   0.6503
  -0.250   0.5544   0.00565   0.00148  -0.1338   0.7375   0.6850
   0.000   0.5829   0.00562   0.00150  -0.1340   0.7330   0.7100
   0.250   0.6111   0.00561   0.00151  -0.1341   0.7286   0.7280
   0.500   0.6395   0.00562   0.00155  -0.1344   0.7234   0.7426
   0.750   0.6676   0.00564   0.00157  -0.1345   0.7171   0.7533
   1.000   0.6956   0.00568   0.00159  -0.1346   0.7104   0.7618
   1.250   0.7230   0.00571   0.00162  -0.1346   0.7017   0.7685
   1.500   0.7505   0.00577   0.00165  -0.1346   0.6921   0.7750
   1.750   0.7771   0.00585   0.00170  -0.1344   0.6810   0.7803
   2.000   0.8029   0.00596   0.00177  -0.1341   0.6674   0.7858
   2.250   0.8283   0.00610   0.00184  -0.1337   0.6511   0.7910
   2.500   0.8525   0.00628   0.00194  -0.1331   0.6303   0.7951
   2.750   0.8749   0.00651   0.00209  -0.1321   0.6069   0.7993
   3.000   0.8967   0.00677   0.00225  -0.1311   0.5814   0.8037
   3.250   0.9183   0.00705   0.00243  -0.1300   0.5573   0.8075
   3.500   0.9387   0.00737   0.00263  -0.1287   0.5316   0.8105
   3.750   0.9583   0.00768   0.00285  -0.1272   0.5047   0.8131
   4.000   0.9771   0.00801   0.00308  -0.1256   0.4783   0.8158
   4.500   1.0139   0.00868   0.00355  -0.1223   0.4290   0.8209
   4.750   1.0301   0.00905   0.00381  -0.1202   0.4044   0.8235
   5.000   1.0449   0.00937   0.00404  -0.1179   0.3822   0.8258
   5.250   1.0573   0.00977   0.00435  -0.1151   0.3586   0.8283
   5.500   1.0713   0.01016   0.00466  -0.1126   0.3356   0.8308
   5.750   1.0845   0.01061   0.00502  -0.1102   0.3130   0.8335
   6.000   1.0989   0.01104   0.00537  -0.1079   0.2926   0.8363
   6.250   1.1135   0.01150   0.00575  -0.1058   0.2727   0.8390
   6.500   1.1273   0.01199   0.00616  -0.1036   0.2530   0.8415
   6.750   1.1406   0.01251   0.00661  -0.1014   0.2338   0.8440
   7.000   1.1540   0.01306   0.00709  -0.0993   0.2139   0.8467
   7.250   1.1681   0.01361   0.00759  -0.0973   0.1966   0.8495
   7.500   1.1810   0.01425   0.00814  -0.0953   0.1778   0.8522
   7.750   1.1945   0.01489   0.00872  -0.0934   0.1607   0.8548
   8.000   1.2085   0.01553   0.00930  -0.0916   0.1448   0.8576
   8.250   1.2222   0.01619   0.00991  -0.0898   0.1297   0.8604
   8.500   1.2354   0.01690   0.01057  -0.0880   0.1140   0.8634
   8.750   1.2485   0.01765   0.01125  -0.0863   0.0993   0.8664
   9.000   1.2631   0.01834   0.01191  -0.0848   0.0890   0.8696
   9.250   1.2773   0.01905   0.01260  -0.0832   0.0796   0.8730
   9.500   1.2905   0.01982   0.01334  -0.0816   0.0695   0.8771
   9.750   1.3053   0.02051   0.01404  -0.0802   0.0624   0.8813
  10.000   1.3196   0.02126   0.01479  -0.0788   0.0560   0.8857
  10.250   1.3329   0.02205   0.01558  -0.0773   0.0495   0.8907
  10.500   1.3462   0.02284   0.01639  -0.0758   0.0436   0.8971
  10.750   1.3587   0.02367   0.01724  -0.0743   0.0380   0.9048
  11.250   1.3821   0.02536   0.01903  -0.0710   0.0286   0.9630
  11.750   1.4069   0.02734   0.02102  -0.0685   0.0206   1.0000
  12.000   1.4189   0.02841   0.02210  -0.0673   0.0179   1.0000
  12.250   1.4305   0.02952   0.02321  -0.0660   0.0152   1.0000
  12.500   1.4429   0.03059   0.02431  -0.0649   0.0137   1.0000
  12.750   1.4541   0.03177   0.02553  -0.0638   0.0123   1.0000
  13.000   1.4661   0.03292   0.02671  -0.0627   0.0110   1.0000
  13.250   1.4763   0.03423   0.02805  -0.0616   0.0100   1.0000
  13.500   1.4877   0.03546   0.02933  -0.0606   0.0093   1.0000
  13.750   1.4980   0.03681   0.03073  -0.0596   0.0085   1.0000
  14.000   1.5070   0.03831   0.03228  -0.0585   0.0076   1.0000
  14.250   1.5170   0.03976   0.03378  -0.0576   0.0070   1.0000
  14.500   1.5257   0.04134   0.03541  -0.0567   0.0063   1.0000
  14.750   1.5335   0.04306   0.03718  -0.0558   0.0057   1.0000
  15.000   1.5414   0.04481   0.03899  -0.0550   0.0049   1.0000
  15.250   1.5477   0.04675   0.04099  -0.0542   0.0043   1.0000
  15.500   1.5545   0.04871   0.04300  -0.0536   0.0040   1.0000
  15.750   1.5594   0.05089   0.04525  -0.0529   0.0033   1.0000
  16.000   1.5633   0.05324   0.04767  -0.0524   0.0028   1.0000
  16.250   1.5682   0.05555   0.05005  -0.0519   0.0026   1.0000
  16.500   1.5716   0.05809   0.05267  -0.0516   0.0023   1.0000
  16.750   1.5726   0.06099   0.05565  -0.0513   0.0019   1.0000
  17.000   1.5746   0.06384   0.05858  -0.0513   0.0017   1.0000
  17.250   1.5759   0.06683   0.06166  -0.0513   0.0016   1.0000
  17.500   1.5758   0.07010   0.06503  -0.0515   0.0014   1.0000
  17.750   1.5755   0.07348   0.06851  -0.0519   0.0013   1.0000
  18.000   1.5732   0.07722   0.07235  -0.0524   0.0012   1.0000
  18.250   1.5686   0.08140   0.07663  -0.0532   0.0010   1.0000
  18.500   1.5658   0.08539   0.08072  -0.0541   0.0010   1.0000
  18.750   1.5621   0.08961   0.08505  -0.0552   0.0010   1.0000
  19.000   1.5576   0.09406   0.08961  -0.0566   0.0009   1.0000
  19.250   1.5520   0.09877   0.09444  -0.0582   0.0009   1.0000
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