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EPPLER 428 AIRFOIL (e428-il) Xfoil prediction polar at RE=200,000 Ncrit=5


Details Polar file
Airfoil: EPPLER 428 AIRFOIL (e428-il)
Reynolds number: 200,000
Max Cl/Cd: 53.4 at α=8.75°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-e428-il-200000-n5.txt
Download as CSV file: xf-e428-il-200000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER 428 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 =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -14.250  -0.9444   0.08564   0.08037  -0.0066   1.0000   0.0161
 -14.000  -0.9562   0.08004   0.07470  -0.0097   1.0000   0.0159
 -13.750  -0.9721   0.07371   0.06828  -0.0132   1.0000   0.0160
 -13.500  -0.9892   0.06722   0.06167  -0.0170   1.0000   0.0160
 -13.250  -1.0066   0.06061   0.05495  -0.0210   1.0000   0.0160
 -13.000  -1.0236   0.05392   0.04811  -0.0253   1.0000   0.0160
 -12.750  -1.0379   0.04778   0.04181  -0.0297   1.0000   0.0159
 -12.500  -1.0503   0.04236   0.03622  -0.0336   1.0000   0.0161
 -12.250  -1.0598   0.03825   0.03195  -0.0361   1.0000   0.0160
 -12.000  -1.0672   0.03532   0.02886  -0.0365   1.0000   0.0162
 -11.750  -1.0714   0.03325   0.02666  -0.0351   1.0000   0.0164
 -11.500  -1.0685   0.03135   0.02464  -0.0340   1.0000   0.0166
 -11.250  -1.0608   0.02967   0.02283  -0.0329   1.0000   0.0170
 -11.000  -1.0492   0.02819   0.02122  -0.0320   1.0000   0.0176
 -10.750  -1.0348   0.02689   0.01978  -0.0311   1.0000   0.0183
 -10.500  -1.0185   0.02571   0.01846  -0.0302   1.0000   0.0192
 -10.250  -1.0018   0.02446   0.01712  -0.0294   1.0000   0.0202
 -10.000  -0.9835   0.02334   0.01590  -0.0286   1.0000   0.0216
  -9.750  -0.9641   0.02230   0.01477  -0.0278   1.0000   0.0235
  -9.500  -0.9445   0.02123   0.01366  -0.0271   1.0000   0.0273
  -9.250  -0.9242   0.02020   0.01268  -0.0264   1.0000   0.0369
  -9.000  -0.9019   0.01945   0.01190  -0.0257   1.0000   0.0490
  -8.750  -0.8791   0.01878   0.01118  -0.0251   1.0000   0.0572
  -8.000  -0.8091   0.01697   0.00941  -0.0234   1.0000   0.0845
  -7.750  -0.7849   0.01650   0.00894  -0.0229   1.0000   0.0934
  -7.500  -0.7604   0.01607   0.00847  -0.0223   1.0000   0.1006
  -7.250  -0.7356   0.01570   0.00803  -0.0217   1.0000   0.1090
  -7.000  -0.7113   0.01527   0.00764  -0.0211   1.0000   0.1184
  -6.750  -0.6868   0.01490   0.00728  -0.0205   1.0000   0.1282
  -6.500  -0.6620   0.01457   0.00695  -0.0199   1.0000   0.1383
  -6.250  -0.6371   0.01428   0.00665  -0.0193   1.0000   0.1481
  -6.000  -0.6124   0.01398   0.00638  -0.0187   1.0000   0.1563
  -5.750  -0.5875   0.01373   0.00608  -0.0180   1.0000   0.1643
  -5.500  -0.5630   0.01346   0.00583  -0.0173   1.0000   0.1718
  -5.250  -0.5382   0.01324   0.00557  -0.0166   1.0000   0.1793
  -5.000  -0.5138   0.01299   0.00535  -0.0158   1.0000   0.1865
  -4.750  -0.4891   0.01280   0.00511  -0.0151   1.0000   0.1938
  -4.500  -0.4650   0.01257   0.00494  -0.0143   1.0000   0.2017
  -4.250  -0.4408   0.01241   0.00476  -0.0135   1.0000   0.2101
  -4.000  -0.4105   0.01221   0.00462  -0.0140   0.9954   0.2194
  -3.750  -0.3724   0.01203   0.00445  -0.0161   0.9843   0.2296
  -3.500  -0.3349   0.01185   0.00428  -0.0180   0.9716   0.2391
  -3.250  -0.2980   0.01165   0.00410  -0.0197   0.9562   0.2468
  -3.000  -0.2606   0.01146   0.00393  -0.0214   0.9371   0.2553
  -2.750  -0.2217   0.01128   0.00374  -0.0234   0.9106   0.2643
  -2.500  -0.1842   0.01114   0.00356  -0.0249   0.8754   0.2747
  -2.000  -0.1258   0.01098   0.00324  -0.0244   0.8020   0.2942
  -1.750  -0.0999   0.01093   0.00312  -0.0236   0.7672   0.3056
  -1.500  -0.0741   0.01089   0.00301  -0.0228   0.7353   0.3197
  -1.250  -0.0481   0.01082   0.00293  -0.0221   0.7075   0.3375
  -0.750   0.0041   0.01067   0.00279  -0.0208   0.6572   0.3834
  -0.500   0.0301   0.01061   0.00275  -0.0202   0.6323   0.4132
  -0.250   0.0560   0.01053   0.00273  -0.0195   0.6066   0.4494
   0.000   0.0817   0.01047   0.00273  -0.0188   0.5804   0.4883
   0.250   0.1076   0.01044   0.00274  -0.0181   0.5532   0.5261
   0.500   0.1332   0.01043   0.00276  -0.0174   0.5238   0.5637
   0.750   0.1586   0.01046   0.00279  -0.0166   0.4926   0.6015
   1.000   0.1839   0.01050   0.00285  -0.0158   0.4605   0.6374
   1.250   0.2092   0.01058   0.00291  -0.0150   0.4264   0.6710
   1.500   0.2342   0.01069   0.00298  -0.0141   0.3880   0.7042
   1.750   0.2588   0.01084   0.00308  -0.0132   0.3473   0.7383
   2.000   0.2833   0.01099   0.00319  -0.0122   0.3129   0.7731
   2.250   0.3082   0.01113   0.00332  -0.0113   0.2886   0.8104
   2.500   0.3348   0.01127   0.00348  -0.0106   0.2700   0.8522
   2.750   0.3657   0.01143   0.00364  -0.0109   0.2545   0.8979
   3.000   0.4057   0.01164   0.00382  -0.0132   0.2406   0.9458
   3.250   0.4469   0.01190   0.00401  -0.0159   0.2292   0.9990
   3.500   0.4729   0.01213   0.00420  -0.0155   0.2216   1.0000
   3.750   0.4984   0.01239   0.00440  -0.0149   0.2143   1.0000
   4.000   0.5241   0.01266   0.00463  -0.0144   0.2077   1.0000
   4.250   0.5501   0.01290   0.00486  -0.0139   0.2011   1.0000
   4.500   0.5756   0.01322   0.00511  -0.0134   0.1958   1.0000
   4.750   0.6017   0.01348   0.00538  -0.0130   0.1906   1.0000
   5.000   0.6278   0.01374   0.00564  -0.0125   0.1843   1.0000
   5.250   0.6533   0.01408   0.00591  -0.0120   0.1782   1.0000
   5.500   0.6796   0.01430   0.00618  -0.0116   0.1717   1.0000
   5.750   0.7053   0.01460   0.00644  -0.0112   0.1654   1.0000
   6.000   0.7311   0.01492   0.00678  -0.0107   0.1607   1.0000
   6.250   0.7571   0.01521   0.00712  -0.0102   0.1559   1.0000
   6.500   0.7826   0.01554   0.00744  -0.0098   0.1511   1.0000
   6.750   0.8080   0.01591   0.00782  -0.0093   0.1466   1.0000
   7.000   0.8338   0.01621   0.00820  -0.0088   0.1416   1.0000
   7.250   0.8590   0.01656   0.00856  -0.0083   0.1367   1.0000
   7.500   0.8840   0.01696   0.00899  -0.0078   0.1323   1.0000
   7.750   0.9094   0.01729   0.00940  -0.0074   0.1266   1.0000
   8.000   0.9338   0.01769   0.00978  -0.0068   0.1211   1.0000
   8.250   0.9590   0.01804   0.01024  -0.0063   0.1148   1.0000
   8.500   0.9831   0.01845   0.01065  -0.0058   0.1088   1.0000
   8.750   1.0076   0.01887   0.01115  -0.0052   0.1027   1.0000
   9.000   1.0311   0.01934   0.01163  -0.0046   0.0966   1.0000
   9.250   1.0549   0.01982   0.01219  -0.0040   0.0907   1.0000
   9.500   1.0774   0.02037   0.01275  -0.0034   0.0854   1.0000
   9.750   1.1004   0.02092   0.01338  -0.0027   0.0802   1.0000
  10.000   1.1220   0.02155   0.01404  -0.0020   0.0756   1.0000
  10.250   1.1438   0.02218   0.01476  -0.0012   0.0715   1.0000
  10.500   1.1642   0.02289   0.01550  -0.0004   0.0668   1.0000
  10.750   1.1845   0.02361   0.01631   0.0004   0.0624   1.0000
  11.000   1.2033   0.02444   0.01719   0.0013   0.0583   1.0000
  11.250   1.2217   0.02527   0.01812   0.0023   0.0544   1.0000
  11.500   1.2381   0.02623   0.01915   0.0034   0.0506   1.0000
  11.750   1.2538   0.02721   0.02024   0.0046   0.0468   1.0000
  12.000   1.2665   0.02837   0.02147   0.0060   0.0429   1.0000
  12.250   1.2792   0.02946   0.02270   0.0074   0.0388   1.0000
  12.500   1.2866   0.03074   0.02407   0.0092   0.0355   1.0000
  12.750   1.2909   0.03210   0.02553   0.0113   0.0326   1.0000
  13.000   1.2922   0.03375   0.02727   0.0131   0.0305   1.0000
  13.250   1.2914   0.03573   0.02936   0.0143   0.0286   1.0000
  13.500   1.2879   0.03820   0.03194   0.0148   0.0276   1.0000
  13.750   1.2815   0.04134   0.03521   0.0143   0.0267   1.0000
  14.000   1.2733   0.04510   0.03913   0.0130   0.0261   1.0000
  14.250   1.2619   0.04972   0.04392   0.0108   0.0256   1.0000
  14.500   1.2471   0.05528   0.04966   0.0076   0.0255   1.0000
  14.750   1.2273   0.06209   0.05664   0.0035   0.0254   1.0000
  15.000   1.2008   0.07042   0.06517  -0.0016   0.0253   1.0000
  15.250   1.1704   0.07978   0.07471  -0.0073   0.0254   1.0000
  15.500   1.1403   0.08927   0.08437  -0.0128   0.0257   1.0000
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