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EPPLER 657 AIRFOIL (e657-il) Xfoil prediction polar at RE=200,000 Ncrit=9


Details Polar file
Airfoil: EPPLER 657 AIRFOIL (e657-il)
Reynolds number: 200,000
Max Cl/Cd: 72.02 at α=8.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e657-il-200000.txt
Download as CSV file: xf-e657-il-200000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER 657 AIRFOIL                              
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     0.200 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -11.250  -0.0263   0.09848   0.09438  -0.1282   0.8896   0.0499
 -11.000  -0.0436   0.09411   0.09006  -0.1332   0.8844   0.0516
 -10.750  -0.0425   0.08989   0.08585  -0.1346   0.8810   0.0523
 -10.500  -0.0254   0.08782   0.08374  -0.1337   0.8785   0.0532
 -10.250  -0.0147   0.08560   0.08150  -0.1341   0.8758   0.0545
 -10.000  -0.0115   0.08290   0.07882  -0.1349   0.8723   0.0561
  -9.750  -0.0134   0.07960   0.07555  -0.1365   0.8684   0.0579
  -9.500  -0.0642   0.07074   0.06674  -0.1479   0.8624   0.0604
  -9.250  -0.0967   0.06706   0.06296  -0.1500   0.8582   0.0605
  -9.000  -0.0406   0.06620   0.06225  -0.1452   0.8584   0.0624
  -8.750  -0.0447   0.06294   0.05903  -0.1468   0.8550   0.0632
  -8.500  -0.0559   0.05969   0.05577  -0.1480   0.8511   0.0642
  -8.250  -0.0758   0.05690   0.05294  -0.1474   0.8469   0.0648
  -8.000  -0.0906   0.05437   0.05029  -0.1465   0.8438   0.0664
  -7.750  -0.1391   0.05436   0.04965  -0.1426   0.8386   0.0706
  -7.500  -0.1685   0.03839   0.03291  -0.1386   0.8347   0.0333
  -7.250  -0.1716   0.03367   0.02725  -0.1346   0.8314   0.0272
  -7.000  -0.1557   0.03148   0.02482  -0.1335   0.8292   0.0267
  -6.750  -0.1378   0.02949   0.02249  -0.1323   0.8275   0.0265
  -6.500  -0.1177   0.02792   0.02061  -0.1313   0.8259   0.0264
  -6.250  -0.1086   0.02721   0.01971  -0.1286   0.8219   0.0267
  -6.000  -0.0929   0.02646   0.01873  -0.1267   0.8185   0.0272
  -5.750  -0.0739   0.02546   0.01772  -0.1256   0.8161   0.0283
  -5.500  -0.0518   0.02497   0.01718  -0.1249   0.8141   0.0310
  -5.250  -0.0274   0.02421   0.01639  -0.1245   0.8124   0.0343
  -5.000  -0.0009   0.02352   0.01559  -0.1242   0.8109   0.0379
  -4.750   0.0240   0.02274   0.01484  -0.1238   0.8094   0.0439
  -4.500   0.0083   0.02375   0.01596  -0.1176   0.8022   0.0461
  -4.250   0.0259   0.02346   0.01572  -0.1162   0.7990   0.0589
  -4.000   0.0496   0.02275   0.01517  -0.1159   0.7969   0.0878
  -3.750   0.0762   0.02211   0.01477  -0.1162   0.7954   0.1403
  -3.500   0.1049   0.02130   0.01443  -0.1171   0.7942   0.2412
  -3.250   0.0884   0.02259   0.01590  -0.1108   0.7860   0.2753
  -3.000   0.1049   0.02232   0.01613  -0.1098   0.7824   0.3969
  -2.750   0.1304   0.02168   0.01615  -0.1096   0.7804   0.5638
  -2.500   0.1550   0.02152   0.01639  -0.1081   0.7788   0.6862
  -2.250   0.1818   0.02164   0.01657  -0.1068   0.7776   0.7478
  -2.000   0.1441   0.02366   0.01870  -0.0969   0.7660   0.7594
  -1.750   0.1685   0.02398   0.01896  -0.0953   0.7637   0.7965
  -1.500   0.1975   0.02415   0.01903  -0.0946   0.7622   0.8251
  -1.250   0.2251   0.02419   0.01899  -0.0932   0.7610   0.8443
  -1.000   0.1886   0.02604   0.02091  -0.0836   0.7488   0.8582
  -0.750   0.2087   0.02605   0.02086  -0.0811   0.7465   0.8757
  -0.500   0.2320   0.02589   0.02063  -0.0790   0.7449   0.8925
  -0.250   0.2570   0.02559   0.02026  -0.0770   0.7438   0.9090
   0.000   0.2854   0.02521   0.01980  -0.0758   0.7430   0.9243
   0.250   0.2493   0.02677   0.02142  -0.0666   0.7292   0.9446
   0.500   0.2861   0.02647   0.02104  -0.0674   0.7281   0.9597
   0.750   0.3384   0.02627   0.02075  -0.0714   0.7275   0.9715
   1.000   0.4044   0.02607   0.02046  -0.0781   0.7273   0.9792
   1.250   0.4715   0.02581   0.02012  -0.0852   0.7272   0.9838
   1.500   0.5372   0.02545   0.01968  -0.0921   0.7271   0.9862
   1.750   0.5938   0.02499   0.01915  -0.0973   0.7267   0.9884
   2.000   0.5191   0.02778   0.02203  -0.0838   0.7056   1.0000
   2.250   0.5770   0.02687   0.02106  -0.0881   0.7074   1.0000
   2.500   0.6314   0.02607   0.02022  -0.0922   0.7081   1.0000
   2.750   0.6911   0.02526   0.01936  -0.0973   0.7089   1.0000
   3.000   0.7505   0.02427   0.01834  -0.1023   0.7098   1.0000
   3.250   0.6225   0.02779   0.02189  -0.0796   0.6821   1.0000
   3.500   0.6634   0.02715   0.02125  -0.0813   0.6811   1.0000
   3.750   0.7063   0.02638   0.02046  -0.0832   0.6805   1.0000
   4.000   0.7514   0.02549   0.01956  -0.0855   0.6802   1.0000
   4.250   0.7973   0.02463   0.01871  -0.0880   0.6797   1.0000
   4.500   0.8455   0.02374   0.01783  -0.0909   0.6791   1.0000
   4.750   0.8962   0.02282   0.01692  -0.0944   0.6785   1.0000
   5.000   0.8827   0.02396   0.01811  -0.0887   0.6655   1.0000
   5.250   0.9325   0.02285   0.01702  -0.0918   0.6648   1.0000
   5.500   0.9850   0.02175   0.01595  -0.0954   0.6639   1.0000
   5.750   1.0375   0.02068   0.01490  -0.0991   0.6628   1.0000
   6.000   1.0291   0.02144   0.01573  -0.0937   0.6508   1.0000
   6.250   1.0822   0.02026   0.01459  -0.0974   0.6490   1.0000
   6.500   1.0853   0.02067   0.01506  -0.0938   0.6387   1.0000
   6.750   1.1325   0.01959   0.01402  -0.0965   0.6351   1.0000
   7.000   1.1543   0.01936   0.01386  -0.0956   0.6270   1.0000
   7.250   1.1872   0.01875   0.01328  -0.0962   0.6196   1.0000
   7.500   1.2007   0.01883   0.01343  -0.0941   0.6086   1.0000
   7.750   1.2364   0.01818   0.01280  -0.0951   0.5997   1.0000
   8.000   1.2598   0.01799   0.01263  -0.0944   0.5872   1.0000
   8.250   1.2780   0.01805   0.01271  -0.0930   0.5722   1.0000
   8.500   1.3000   0.01805   0.01269  -0.0921   0.5557   1.0000
   8.750   1.3122   0.01849   0.01312  -0.0900   0.5366   1.0000
   9.000   1.3259   0.01896   0.01354  -0.0882   0.5161   1.0000
   9.250   1.3406   0.01946   0.01394  -0.0865   0.4946   1.0000
   9.500   1.3491   0.02029   0.01469  -0.0842   0.4726   1.0000
   9.750   1.3560   0.02125   0.01558  -0.0818   0.4507   1.0000
  10.000   1.3626   0.02229   0.01650  -0.0794   0.4295   1.0000
  10.250   1.3662   0.02354   0.01770  -0.0769   0.4082   1.0000
  10.500   1.3695   0.02486   0.01896  -0.0744   0.3874   1.0000
  10.750   1.3725   0.02626   0.02028  -0.0721   0.3674   1.0000
  11.000   1.3750   0.02774   0.02168  -0.0698   0.3479   1.0000
  11.250   1.3776   0.02928   0.02319  -0.0677   0.3288   1.0000
  11.500   1.3802   0.03089   0.02476  -0.0657   0.3101   1.0000
  11.750   1.3825   0.03258   0.02640  -0.0638   0.2921   1.0000
  12.000   1.3848   0.03434   0.02812  -0.0619   0.2746   1.0000
  12.250   1.3871   0.03618   0.02990  -0.0603   0.2576   1.0000
  12.500   1.3891   0.03810   0.03178  -0.0587   0.2412   1.0000
  12.750   1.3916   0.04006   0.03371  -0.0572   0.2257   1.0000
  13.000   1.3941   0.04210   0.03574  -0.0559   0.2106   1.0000
  13.250   1.3964   0.04422   0.03784  -0.0547   0.1961   1.0000
  13.500   1.3990   0.04638   0.03999  -0.0536   0.1822   1.0000
  13.750   1.4010   0.04867   0.04228  -0.0526   0.1689   1.0000
  14.000   1.4031   0.05102   0.04463  -0.0517   0.1566   1.0000
  14.250   1.4043   0.05352   0.04711  -0.0508   0.1452   1.0000
  14.500   1.4038   0.05624   0.04979  -0.0500   0.1349   1.0000
  14.750   1.4066   0.05873   0.05236  -0.0495   0.1243   1.0000
  15.000   1.4081   0.06143   0.05510  -0.0490   0.1147   1.0000
  15.250   1.4071   0.06443   0.05808  -0.0485   0.1064   1.0000
  15.500   1.4076   0.06737   0.06106  -0.0483   0.0981   1.0000
  15.750   1.4081   0.07039   0.06414  -0.0481   0.0905   1.0000
  16.000   1.4048   0.07386   0.06754  -0.0480   0.0840   1.0000
  16.250   1.4066   0.07690   0.07076  -0.0481   0.0774   1.0000
  16.500   1.4036   0.08046   0.07429  -0.0482   0.0720   1.0000
  16.750   1.4036   0.08384   0.07780  -0.0485   0.0666   1.0000
  17.000   1.4010   0.08748   0.08142  -0.0489   0.0620   1.0000
  17.250   1.4005   0.09105   0.08513  -0.0495   0.0576   1.0000
  17.500   1.3980   0.09471   0.08874  -0.0500   0.0538   1.0000
  17.750   1.3973   0.09845   0.09267  -0.0509   0.0502   1.0000
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