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RAF 31 AIRFOIL (raf31-il) Xfoil prediction polar at RE=500,000 Ncrit=5


Details Polar file
Airfoil: RAF 31 AIRFOIL (raf31-il)
Reynolds number: 500,000
Max Cl/Cd: 79.55 at α=4.25°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-raf31-il-500000-n5.txt
Download as CSV file: xf-raf31-il-500000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: RAF 31 AIRFOIL                                  
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     0.500 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -16.250  -0.8475   0.09192   0.08895  -0.0467   1.0000   0.0166
 -16.000  -0.8881   0.08044   0.07730  -0.0536   1.0000   0.0166
 -15.750  -0.9162   0.07194   0.06864  -0.0588   1.0000   0.0167
 -15.500  -0.9390   0.06469   0.06124  -0.0632   1.0000   0.0167
 -15.250  -0.9551   0.05872   0.05512  -0.0669   1.0000   0.0168
 -15.000  -0.9663   0.05365   0.04991  -0.0701   1.0000   0.0171
 -14.750  -0.9765   0.04896   0.04507  -0.0728   1.0000   0.0173
 -14.500  -0.9829   0.04505   0.04103  -0.0750   1.0000   0.0175
 -14.250  -0.9888   0.04146   0.03729  -0.0766   1.0000   0.0177
 -14.000  -0.9908   0.03860   0.03428  -0.0776   1.0000   0.0181
 -13.750  -0.9921   0.03608   0.03160  -0.0781   1.0000   0.0183
 -13.500  -0.9922   0.03398   0.02935  -0.0779   1.0000   0.0185
 -13.250  -0.9929   0.03212   0.02737  -0.0771   1.0000   0.0188
 -13.000  -0.9951   0.03046   0.02564  -0.0755   1.0000   0.0190
 -12.750  -0.9949   0.02936   0.02449  -0.0731   1.0000   0.0192
 -12.500  -0.9949   0.02853   0.02361  -0.0699   1.0000   0.0195
 -12.250  -0.9961   0.02777   0.02279  -0.0660   1.0000   0.0197
 -12.000  -0.9888   0.02718   0.02217  -0.0634   1.0000   0.0200
 -11.750  -0.9814   0.02646   0.02139  -0.0607   1.0000   0.0204
 -11.500  -0.9656   0.02567   0.02051  -0.0597   0.9991   0.0208
 -11.250  -0.9376   0.02478   0.01952  -0.0611   0.9960   0.0215
 -11.000  -0.9110   0.02395   0.01857  -0.0620   0.9919   0.0221
 -10.750  -0.8845   0.02313   0.01763  -0.0628   0.9870   0.0227
 -10.500  -0.8586   0.02241   0.01680  -0.0633   0.9812   0.0231
 -10.000  -0.8106   0.02068   0.01485  -0.0635   0.9651   0.0240
  -9.750  -0.7854   0.01958   0.01369  -0.0640   0.9581   0.0247
  -9.500  -0.7566   0.01876   0.01281  -0.0650   0.9514   0.0251
  -9.250  -0.7243   0.01802   0.01202  -0.0667   0.9464   0.0257
  -9.000  -0.6905   0.01735   0.01128  -0.0686   0.9413   0.0264
  -8.750  -0.6556   0.01667   0.01052  -0.0706   0.9365   0.0271
  -8.500  -0.6207   0.01600   0.00978  -0.0727   0.9312   0.0276
  -8.250  -0.5865   0.01541   0.00910  -0.0745   0.9246   0.0281
  -8.000  -0.5526   0.01488   0.00847  -0.0762   0.9174   0.0287
  -7.750  -0.5229   0.01443   0.00793  -0.0770   0.9088   0.0291
  -7.500  -0.4950   0.01402   0.00743  -0.0773   0.9004   0.0294
  -7.250  -0.4694   0.01366   0.00699  -0.0770   0.8918   0.0296
  -7.000  -0.4455   0.01324   0.00650  -0.0764   0.8842   0.0299
  -6.750  -0.4226   0.01280   0.00598  -0.0757   0.8760   0.0305
  -6.500  -0.3991   0.01242   0.00555  -0.0749   0.8690   0.0311
  -6.250  -0.3753   0.01210   0.00516  -0.0742   0.8612   0.0318
  -6.000  -0.3510   0.01181   0.00482  -0.0736   0.8543   0.0326
  -5.750  -0.3266   0.01155   0.00452  -0.0729   0.8467   0.0334
  -5.500  -0.3017   0.01132   0.00423  -0.0724   0.8397   0.0343
  -5.250  -0.2767   0.01111   0.00396  -0.0718   0.8321   0.0351
  -5.000  -0.2514   0.01091   0.00372  -0.0713   0.8246   0.0359
  -4.750  -0.2262   0.01073   0.00348  -0.0707   0.8160   0.0368
  -4.500  -0.2010   0.01055   0.00326  -0.0701   0.8067   0.0389
  -4.250  -0.1761   0.01035   0.00304  -0.0695   0.7970   0.0430
  -4.000  -0.1523   0.01004   0.00285  -0.0687   0.7864   0.0674
  -3.750  -0.1266   0.00992   0.00269  -0.0683   0.7773   0.0772
  -3.500  -0.1012   0.00977   0.00253  -0.0677   0.7681   0.0859
  -3.250  -0.0756   0.00964   0.00239  -0.0673   0.7594   0.0947
  -2.750  -0.0269   0.00914   0.00208  -0.0660   0.7413   0.1582
  -2.500  -0.0023   0.00893   0.00196  -0.0653   0.7331   0.1967
  -2.250   0.0225   0.00874   0.00185  -0.0648   0.7239   0.2290
  -2.000   0.0470   0.00852   0.00176  -0.0641   0.7159   0.2734
  -1.750   0.0718   0.00834   0.00171  -0.0635   0.7074   0.3176
  -1.500   0.0973   0.00824   0.00166  -0.0630   0.6997   0.3476
  -1.250   0.1230   0.00812   0.00163  -0.0626   0.6924   0.3784
  -1.000   0.1482   0.00801   0.00160  -0.0620   0.6855   0.4120
  -0.750   0.1737   0.00789   0.00158  -0.0615   0.6781   0.4429
  -0.500   0.1985   0.00778   0.00157  -0.0609   0.6712   0.4807
  -0.250   0.2241   0.00768   0.00158  -0.0603   0.6641   0.5142
   0.000   0.2495   0.00763   0.00159  -0.0598   0.6567   0.5442
   0.250   0.2752   0.00757   0.00161  -0.0592   0.6487   0.5708
   0.500   0.3003   0.00755   0.00162  -0.0586   0.6394   0.5952
   0.750   0.3259   0.00752   0.00165  -0.0580   0.6301   0.6200
   1.000   0.3509   0.00749   0.00169  -0.0573   0.6211   0.6445
   1.250   0.3753   0.00745   0.00174  -0.0565   0.6107   0.6780
   1.500   0.3995   0.00742   0.00180  -0.0556   0.5988   0.7088
   1.750   0.4240   0.00744   0.00185  -0.0547   0.5856   0.7317
   2.000   0.4483   0.00748   0.00191  -0.0539   0.5693   0.7508
   2.250   0.4713   0.00757   0.00197  -0.0528   0.5461   0.7699
   2.500   0.4927   0.00771   0.00205  -0.0513   0.5138   0.7897
   2.750   0.5133   0.00791   0.00216  -0.0498   0.4801   0.8103
   3.000   0.5349   0.00808   0.00229  -0.0484   0.4561   0.8332
   3.500   0.5875   0.00838   0.00262  -0.0478   0.4207   0.8948
   3.750   0.6345   0.00861   0.00285  -0.0521   0.4025   0.9272
   4.000   0.6860   0.00886   0.00307  -0.0574   0.3812   0.9521
   4.250   0.7263   0.00913   0.00325  -0.0603   0.3526   0.9737
   4.500   0.7548   0.00971   0.00352  -0.0609   0.2853   0.9904
   4.750   0.7836   0.01017   0.00383  -0.0615   0.2605   1.0000
   5.000   0.8025   0.01047   0.00407  -0.0598   0.2449   1.0000
   5.250   0.8221   0.01075   0.00430  -0.0582   0.2285   1.0000
   5.500   0.8401   0.01113   0.00454  -0.0563   0.1948   1.0000
   5.750   0.8539   0.01174   0.00489  -0.0538   0.1488   1.0000
   6.000   0.8707   0.01219   0.00523  -0.0518   0.1273   1.0000
   6.250   0.8886   0.01257   0.00556  -0.0499   0.1132   1.0000
   6.500   0.9068   0.01294   0.00587  -0.0482   0.1021   1.0000
   6.750   0.9249   0.01331   0.00619  -0.0464   0.0930   1.0000
   7.000   0.9440   0.01361   0.00649  -0.0448   0.0866   1.0000
   7.250   0.9619   0.01398   0.00683  -0.0430   0.0802   1.0000
   7.500   0.9810   0.01428   0.00714  -0.0415   0.0757   1.0000
   7.750   0.9989   0.01463   0.00748  -0.0397   0.0708   1.0000
   8.000   1.0157   0.01498   0.00783  -0.0377   0.0671   1.0000
   8.250   1.0324   0.01529   0.00817  -0.0357   0.0639   1.0000
   8.500   1.0480   0.01565   0.00853  -0.0335   0.0599   1.0000
   8.750   1.0631   0.01606   0.00894  -0.0314   0.0564   1.0000
   9.000   1.0798   0.01641   0.00931  -0.0295   0.0523   1.0000
   9.250   1.0950   0.01687   0.00975  -0.0275   0.0476   1.0000
   9.500   1.1106   0.01731   0.01022  -0.0256   0.0424   1.0000
   9.750   1.1246   0.01787   0.01074  -0.0236   0.0351   1.0000
  10.000   1.1351   0.01864   0.01143  -0.0212   0.0242   1.0000
  10.250   1.1457   0.01944   0.01220  -0.0188   0.0194   1.0000
  10.500   1.1575   0.02020   0.01299  -0.0168   0.0173   1.0000
  10.750   1.1695   0.02099   0.01381  -0.0148   0.0159   1.0000
  11.000   1.1824   0.02174   0.01464  -0.0131   0.0151   1.0000
  11.250   1.1941   0.02260   0.01556  -0.0113   0.0141   1.0000
  11.500   1.2048   0.02356   0.01656  -0.0096   0.0133   1.0000
  11.750   1.2140   0.02466   0.01772  -0.0078   0.0126   1.0000
  12.000   1.2245   0.02569   0.01883  -0.0062   0.0122   1.0000
  12.250   1.2352   0.02675   0.01996  -0.0048   0.0118   1.0000
  12.500   1.2454   0.02786   0.02115  -0.0034   0.0115   1.0000
  12.750   1.2542   0.02912   0.02250  -0.0020   0.0111   1.0000
  13.000   1.2627   0.03045   0.02391  -0.0007   0.0107   1.0000
  13.250   1.2700   0.03191   0.02544   0.0005   0.0105   1.0000
  13.500   1.2762   0.03351   0.02713   0.0016   0.0102   1.0000
  13.750   1.2805   0.03534   0.02902   0.0027   0.0099   1.0000
  14.000   1.2827   0.03741   0.03117   0.0036   0.0096   1.0000
  14.250   1.2847   0.03957   0.03343   0.0044   0.0093   1.0000
  14.500   1.2883   0.04165   0.03561   0.0050   0.0092   1.0000
  14.750   1.2906   0.04392   0.03799   0.0056   0.0090   1.0000
  15.000   1.2940   0.04614   0.04031   0.0059   0.0088   1.0000
  15.250   1.2947   0.04874   0.04301   0.0061   0.0088   1.0000
  15.500   1.2949   0.05147   0.04585   0.0061   0.0085   1.0000
  15.750   1.2919   0.05469   0.04918   0.0059   0.0085   1.0000
  16.000   1.2906   0.05783   0.05243   0.0055   0.0083   1.0000
  16.250   1.2861   0.06149   0.05620   0.0048   0.0082   1.0000
  16.500   1.2835   0.06500   0.05982   0.0040   0.0080   1.0000
  16.750   1.2779   0.06907   0.06400   0.0029   0.0079   1.0000
  17.000   1.2715   0.07339   0.06843   0.0016   0.0078   1.0000
  17.250   1.2645   0.07787   0.07303   0.0001   0.0077   1.0000
  17.500   1.2557   0.08274   0.07801  -0.0017   0.0077   1.0000
  17.750   1.2453   0.08794   0.08333  -0.0037   0.0077   1.0000
  18.000   1.2340   0.09340   0.08891  -0.0059   0.0075   1.0000
  18.250   1.2226   0.09892   0.09454  -0.0081   0.0076   1.0000
  18.500   1.2104   0.10477   0.10051  -0.0107   0.0075   1.0000
  18.750   1.1973   0.11091   0.10677  -0.0135   0.0075   1.0000
  19.000   1.1841   0.11719   0.11317  -0.0165   0.0074   1.0000
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