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EPPLER 642 AIRFOIL (e642-il) Xfoil prediction polar at RE=1,000,000 Ncrit=5


Details Polar file
Airfoil: EPPLER 642 AIRFOIL (e642-il)
Reynolds number: 1,000,000
Max Cl/Cd: 109.65 at α=5°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-e642-il-1000000-n5.txt
Download as CSV file: xf-e642-il-1000000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER 642 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
  ------ -------- --------- --------- -------- -------- --------
 -13.500  -0.5999   0.05528   0.05205  -0.0917   0.7160   0.0062
 -13.250  -0.6226   0.04847   0.04507  -0.0962   0.7121   0.0062
 -13.000  -0.6589   0.04223   0.03859  -0.0977   0.7088   0.0063
 -12.750  -0.6755   0.03889   0.03508  -0.0968   0.7052   0.0063
 -12.500  -0.6895   0.03604   0.03205  -0.0949   0.7017   0.0063
 -12.250  -0.7016   0.03355   0.02937  -0.0923   0.6979   0.0063
 -11.750  -0.7134   0.02963   0.02510  -0.0866   0.6920   0.0064
 -11.500  -0.7155   0.02793   0.02322  -0.0836   0.6894   0.0064
 -11.250  -0.7120   0.02670   0.02186  -0.0808   0.6868   0.0064
 -11.000  -0.7067   0.02567   0.02072  -0.0781   0.6842   0.0065
 -10.750  -0.7025   0.02449   0.01938  -0.0749   0.6817   0.0065
 -10.500  -0.6912   0.02367   0.01844  -0.0728   0.6794   0.0066
 -10.250  -0.6782   0.02263   0.01727  -0.0710   0.6775   0.0066
 -10.000  -0.6620   0.02186   0.01640  -0.0696   0.6757   0.0067
  -9.750  -0.6457   0.02093   0.01534  -0.0682   0.6739   0.0068
  -9.500  -0.6275   0.02014   0.01445  -0.0670   0.6720   0.0068
  -9.250  -0.6085   0.01936   0.01356  -0.0659   0.6699   0.0069
  -9.000  -0.5884   0.01869   0.01279  -0.0649   0.6679   0.0070
  -8.750  -0.5675   0.01804   0.01204  -0.0641   0.6659   0.0071
  -8.500  -0.5460   0.01745   0.01135  -0.0633   0.6641   0.0072
  -8.250  -0.5242   0.01682   0.01063  -0.0625   0.6625   0.0073
  -8.000  -0.5013   0.01628   0.01002  -0.0619   0.6613   0.0075
  -7.750  -0.4785   0.01570   0.00937  -0.0613   0.6599   0.0076
  -7.500  -0.4555   0.01513   0.00873  -0.0606   0.6585   0.0078
  -7.250  -0.4322   0.01461   0.00814  -0.0600   0.6571   0.0080
  -7.000  -0.4087   0.01412   0.00759  -0.0595   0.6556   0.0081
  -6.750  -0.3849   0.01366   0.00708  -0.0589   0.6541   0.0082
  -6.500  -0.3608   0.01327   0.00663  -0.0584   0.6526   0.0083
  -6.250  -0.3361   0.01295   0.00626  -0.0580   0.6510   0.0085
  -6.000  -0.3115   0.01262   0.00588  -0.0576   0.6494   0.0086
  -5.750  -0.2878   0.01221   0.00541  -0.0570   0.6479   0.0088
  -5.500  -0.2640   0.01176   0.00494  -0.0565   0.6468   0.0091
  -5.250  -0.2390   0.01144   0.00460  -0.0561   0.6457   0.0093
  -5.000  -0.2136   0.01116   0.00430  -0.0558   0.6445   0.0096
  -4.750  -0.1879   0.01091   0.00404  -0.0556   0.6431   0.0098
  -4.500  -0.1619   0.01068   0.00380  -0.0554   0.6416   0.0102
  -4.250  -0.1359   0.01046   0.00355  -0.0552   0.6402   0.0105
  -4.000  -0.1096   0.01027   0.00335  -0.0550   0.6387   0.0109
  -3.750  -0.0832   0.01011   0.00316  -0.0549   0.6371   0.0114
  -3.500  -0.0567   0.00995   0.00298  -0.0548   0.6356   0.0119
  -3.250  -0.0305   0.00976   0.00276  -0.0546   0.6339   0.0128
  -3.000  -0.0038   0.00963   0.00261  -0.0545   0.6321   0.0135
  -2.750   0.0232   0.00949   0.00248  -0.0545   0.6308   0.0145
  -2.500   0.0504   0.00936   0.00235  -0.0545   0.6293   0.0164
  -2.250   0.0763   0.00910   0.00221  -0.0543   0.6277   0.0400
  -2.000   0.1021   0.00884   0.00209  -0.0541   0.6259   0.0782
  -1.750   0.1272   0.00853   0.00198  -0.0539   0.6242   0.1357
  -1.500   0.1519   0.00819   0.00188  -0.0536   0.6224   0.2077
  -1.250   0.1765   0.00785   0.00179  -0.0533   0.6206   0.2870
  -1.000   0.1994   0.00736   0.00168  -0.0528   0.6188   0.4065
  -0.750   0.2200   0.00665   0.00153  -0.0519   0.6168   0.5779
  -0.500   0.2396   0.00603   0.00166  -0.0504   0.6152   0.7872
  -0.250   0.2684   0.00612   0.00175  -0.0506   0.6134   0.8075
   0.000   0.2971   0.00620   0.00184  -0.0508   0.6112   0.8180
   0.250   0.3259   0.00629   0.00191  -0.0510   0.6088   0.8258
   0.500   0.3543   0.00638   0.00198  -0.0512   0.6062   0.8315
   0.750   0.3822   0.00650   0.00210  -0.0511   0.6037   0.8372
   1.000   0.4106   0.00662   0.00218  -0.0513   0.6011   0.8426
   1.250   0.4394   0.00664   0.00221  -0.0516   0.5984   0.8451
   1.500   0.4683   0.00664   0.00222  -0.0520   0.5949   0.8460
   1.750   0.4970   0.00665   0.00222  -0.0523   0.5911   0.8467
   2.000   0.5254   0.00668   0.00221  -0.0526   0.5872   0.8472
   2.250   0.5544   0.00669   0.00223  -0.0530   0.5833   0.8477
   2.500   0.5832   0.00670   0.00224  -0.0534   0.5783   0.8482
   2.750   0.6114   0.00673   0.00225  -0.0537   0.5730   0.8487
   3.000   0.6399   0.00676   0.00228  -0.0540   0.5671   0.8493
   3.250   0.6679   0.00680   0.00231  -0.0543   0.5595   0.8499
   3.500   0.6959   0.00685   0.00234  -0.0545   0.5504   0.8505
   3.750   0.7232   0.00693   0.00238  -0.0546   0.5386   0.8510
   4.000   0.7499   0.00703   0.00244  -0.0546   0.5242   0.8515
   4.250   0.7760   0.00717   0.00253  -0.0546   0.5084   0.8520
   4.500   0.8015   0.00734   0.00263  -0.0544   0.4914   0.8525
   4.750   0.8265   0.00754   0.00277  -0.0541   0.4737   0.8531
   5.000   0.8509   0.00776   0.00293  -0.0538   0.4555   0.8537
   5.250   0.8751   0.00799   0.00309  -0.0534   0.4371   0.8542
   5.500   0.8986   0.00825   0.00328  -0.0529   0.4167   0.8548
   5.750   0.9211   0.00855   0.00349  -0.0522   0.3953   0.8556
   6.000   0.9435   0.00884   0.00372  -0.0516   0.3749   0.8563
   6.250   0.9644   0.00919   0.00397  -0.0506   0.3518   0.8569
   6.500   0.9841   0.00957   0.00425  -0.0495   0.3272   0.8575
   6.750   0.9993   0.01011   0.00462  -0.0476   0.2928   0.8581
   7.000   1.0136   0.01064   0.00500  -0.0455   0.2620   0.8587
   7.250   1.0240   0.01123   0.00542  -0.0428   0.2290   0.8595
   7.500   1.0316   0.01171   0.00579  -0.0394   0.2033   0.8605
   7.750   1.0395   0.01227   0.00625  -0.0362   0.1801   0.8616
   8.000   1.0510   0.01276   0.00669  -0.0337   0.1651   0.8624
   8.250   1.0613   0.01332   0.00719  -0.0311   0.1494   0.8634
   8.500   1.0665   0.01410   0.00786  -0.0280   0.1276   0.8645
   8.750   1.0761   0.01476   0.00848  -0.0256   0.1141   0.8655
   9.000   1.0827   0.01562   0.00927  -0.0231   0.0972   0.8666
   9.250   1.0913   0.01646   0.01006  -0.0209   0.0848   0.8678
   9.500   1.0986   0.01743   0.01098  -0.0188   0.0715   0.8690
   9.750   1.1056   0.01849   0.01199  -0.0168   0.0588   0.8702
  10.000   1.1132   0.01958   0.01303  -0.0150   0.0476   0.8712
  10.250   1.1183   0.02087   0.01426  -0.0131   0.0344   0.8722
  10.500   1.1263   0.02204   0.01539  -0.0116   0.0263   0.8730
  10.750   1.1353   0.02318   0.01652  -0.0102   0.0200   0.8738
  11.000   1.1398   0.02463   0.01793  -0.0085   0.0107   0.8749
  11.250   1.1483   0.02584   0.01916  -0.0073   0.0081   0.8759
  11.500   1.1597   0.02688   0.02024  -0.0063   0.0074   0.8770
  11.750   1.1703   0.02801   0.02141  -0.0053   0.0067   0.8780
  12.000   1.1818   0.02907   0.02252  -0.0045   0.0064   0.8790
  12.250   1.1923   0.03024   0.02374  -0.0036   0.0061   0.8801
  12.500   1.2023   0.03146   0.02501  -0.0028   0.0058   0.8812
  12.750   1.2114   0.03279   0.02639  -0.0019   0.0055   0.8823
  13.000   1.2204   0.03415   0.02780  -0.0011   0.0054   0.8834
  13.250   1.2293   0.03555   0.02926  -0.0004   0.0052   0.8846
  13.500   1.2360   0.03718   0.03095   0.0004   0.0050   0.8858
  13.750   1.2454   0.03864   0.03247   0.0009   0.0049   0.8869
  14.000   1.2542   0.04017   0.03406   0.0014   0.0048   0.8880
  14.500   1.2687   0.04359   0.03762   0.0024   0.0047   0.8906
  14.750   1.2765   0.04531   0.03940   0.0027   0.0047   0.8923
  15.000   1.2824   0.04724   0.04142   0.0031   0.0045   0.8940
  15.250   1.2889   0.04916   0.04341   0.0033   0.0045   0.8959
  15.500   1.2940   0.05128   0.04561   0.0035   0.0043   0.8977
  15.750   1.2987   0.05350   0.04791   0.0036   0.0042   0.8995
  16.000   1.3036   0.05578   0.05026   0.0035   0.0041   0.9013
  16.250   1.3060   0.05838   0.05295   0.0034   0.0041   0.9031
  16.500   1.3103   0.06078   0.05543   0.0032   0.0039   0.9053
  16.750   1.3133   0.06339   0.05813   0.0030   0.0039   0.9078
  17.000   1.3132   0.06647   0.06130   0.0026   0.0039   0.9106
  17.250   1.3153   0.06934   0.06426   0.0021   0.0038   0.9137
  17.500   1.3150   0.07257   0.06758   0.0014   0.0037   0.9168
  17.750   1.3138   0.07599   0.07111   0.0006   0.0037   0.9206
  18.000   1.3099   0.07982   0.07506  -0.0003   0.0036   0.9257
  18.250   1.3020   0.08439   0.07975  -0.0016   0.0035   0.9312
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