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RAF 27 AIRFOIL (raf27-il) Xfoil prediction polar at RE=500,000 Ncrit=5


Details Polar file
Airfoil: RAF 27 AIRFOIL (raf27-il)
Reynolds number: 500,000
Max Cl/Cd: 58.45 at α=6.25°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-raf27-il-500000-n5.txt
Download as CSV file: xf-raf27-il-500000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: RAF 27 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
  ------ -------- --------- --------- -------- -------- --------
 -15.000  -0.9236   0.09409   0.09144  -0.0096   1.0000   0.0053
 -14.750  -0.9710   0.07975   0.07690  -0.0178   1.0000   0.0051
 -14.500  -1.0040   0.06880   0.06574  -0.0247   1.0000   0.0050
 -14.250  -1.0233   0.06106   0.05783  -0.0298   1.0000   0.0050
 -14.000  -1.0425   0.05397   0.05054  -0.0344   1.0000   0.0050
 -13.750  -1.0530   0.04895   0.04538  -0.0374   1.0000   0.0051
 -13.500  -1.0668   0.04411   0.04033  -0.0395   1.0000   0.0051
 -13.250  -1.0736   0.04068   0.03674  -0.0403   1.0000   0.0051
 -13.000  -1.0805   0.03764   0.03353  -0.0402   1.0000   0.0052
 -12.750  -1.0827   0.03541   0.03116  -0.0393   1.0000   0.0053
 -12.500  -1.0859   0.03329   0.02887  -0.0376   1.0000   0.0054
 -12.250  -1.0881   0.03143   0.02685  -0.0353   1.0000   0.0054
 -12.000  -1.0873   0.02995   0.02523  -0.0326   1.0000   0.0055
 -11.750  -1.0851   0.02867   0.02380  -0.0296   1.0000   0.0057
 -11.500  -1.0827   0.02739   0.02235  -0.0263   1.0000   0.0058
 -11.250  -1.0740   0.02624   0.02106  -0.0240   1.0000   0.0060
 -11.000  -1.0618   0.02529   0.01997  -0.0220   1.0000   0.0063
 -10.750  -1.0499   0.02424   0.01877  -0.0199   1.0000   0.0064
 -10.500  -1.0395   0.02300   0.01738  -0.0175   1.0000   0.0067
 -10.250  -1.0284   0.02181   0.01608  -0.0152   1.0000   0.0069
 -10.000  -1.0128   0.02101   0.01521  -0.0135   1.0000   0.0073
  -9.750  -0.9968   0.02020   0.01431  -0.0117   1.0000   0.0076
  -9.500  -0.9800   0.01946   0.01348  -0.0101   1.0000   0.0079
  -9.250  -0.9628   0.01873   0.01266  -0.0084   1.0000   0.0083
  -9.000  -0.9453   0.01803   0.01182  -0.0067   1.0000   0.0087
  -8.750  -0.9272   0.01737   0.01107  -0.0051   1.0000   0.0091
  -8.500  -0.9091   0.01672   0.01033  -0.0035   1.0000   0.0095
  -8.250  -0.8917   0.01598   0.00954  -0.0017   1.0000   0.0105
  -8.000  -0.8721   0.01548   0.00901  -0.0003   1.0000   0.0115
  -7.750  -0.8523   0.01501   0.00848   0.0011   1.0000   0.0124
  -7.500  -0.8324   0.01455   0.00795   0.0025   1.0000   0.0134
  -7.250  -0.8132   0.01401   0.00735   0.0041   1.0000   0.0148
  -7.000  -0.7932   0.01358   0.00691   0.0055   1.0000   0.0171
  -6.750  -0.7724   0.01323   0.00653   0.0068   1.0000   0.0192
  -6.500  -0.7518   0.01288   0.00615   0.0082   1.0000   0.0217
  -6.250  -0.7314   0.01252   0.00578   0.0095   1.0000   0.0249
  -6.000  -0.7103   0.01225   0.00548   0.0108   1.0000   0.0279
  -5.750  -0.6807   0.01195   0.00513   0.0102   0.9985   0.0308
  -5.500  -0.6486   0.01157   0.00474   0.0090   0.9959   0.0349
  -5.250  -0.6166   0.01129   0.00442   0.0079   0.9932   0.0387
  -5.000  -0.5843   0.01093   0.00409   0.0068   0.9895   0.0455
  -4.750  -0.5492   0.01056   0.00378   0.0050   0.9857   0.0595
  -4.500  -0.5175   0.01021   0.00349   0.0040   0.9796   0.0773
  -4.250  -0.4841   0.00986   0.00320   0.0026   0.9753   0.0965
  -4.000  -0.4560   0.00948   0.00294   0.0024   0.9685   0.1233
  -3.750  -0.4246   0.00902   0.00267   0.0014   0.9636   0.1724
  -3.500  -0.3959   0.00864   0.00246   0.0010   0.9557   0.2178
  -3.250  -0.3618   0.00829   0.00227  -0.0006   0.9501   0.2578
  -3.000  -0.3308   0.00797   0.00208  -0.0014   0.9411   0.2973
  -2.750  -0.2965   0.00768   0.00192  -0.0030   0.9326   0.3352
  -2.500  -0.2628   0.00739   0.00176  -0.0043   0.9217   0.3779
  -2.250  -0.2320   0.00703   0.00162  -0.0051   0.9077   0.4433
  -1.750  -0.1755   0.00658   0.00141  -0.0052   0.8723   0.5348
  -1.500  -0.1495   0.00645   0.00134  -0.0047   0.8495   0.5705
  -1.250  -0.1246   0.00637   0.00128  -0.0039   0.8240   0.6024
  -1.000  -0.1001   0.00632   0.00124  -0.0030   0.7993   0.6334
  -0.750  -0.0751   0.00632   0.00120  -0.0022   0.7762   0.6564
  -0.500  -0.0502   0.00632   0.00118  -0.0014   0.7531   0.6759
  -0.250  -0.0253   0.00633   0.00116  -0.0007   0.7319   0.6948
   0.000   0.0000   0.00633   0.00116   0.0000   0.7133   0.7129
   0.250   0.0252   0.00633   0.00116   0.0007   0.6946   0.7319
   0.500   0.0502   0.00632   0.00118   0.0014   0.6760   0.7531
   0.750   0.0751   0.00632   0.00120   0.0022   0.6566   0.7761
   1.000   0.1000   0.00632   0.00124   0.0030   0.6336   0.7998
   1.250   0.1245   0.00637   0.00128   0.0039   0.6024   0.8240
   1.750   0.1756   0.00658   0.00141   0.0052   0.5360   0.8723
   2.250   0.2320   0.00702   0.00162   0.0051   0.4442   0.9077
   2.500   0.2629   0.00738   0.00176   0.0043   0.3792   0.9217
   2.750   0.2965   0.00768   0.00191   0.0029   0.3361   0.9326
   3.000   0.3308   0.00796   0.00208   0.0014   0.3003   0.9411
   3.250   0.3618   0.00828   0.00226   0.0006   0.2598   0.9501
   3.500   0.3958   0.00864   0.00246  -0.0010   0.2176   0.9557
   3.750   0.4247   0.00901   0.00267  -0.0014   0.1742   0.9636
   4.000   0.4560   0.00948   0.00294  -0.0024   0.1227   0.9685
   4.250   0.4842   0.00986   0.00321  -0.0026   0.0960   0.9754
   4.500   0.5175   0.01021   0.00349  -0.0040   0.0771   0.9797
   4.750   0.5492   0.01056   0.00379  -0.0050   0.0594   0.9858
   5.000   0.5843   0.01094   0.00409  -0.0068   0.0452   0.9895
   5.250   0.6167   0.01128   0.00442  -0.0080   0.0387   0.9933
   5.500   0.6488   0.01157   0.00474  -0.0091   0.0348   0.9960
   5.750   0.6807   0.01196   0.00514  -0.0102   0.0303   0.9986
   6.000   0.7101   0.01224   0.00547  -0.0108   0.0278   1.0000
   6.250   0.7312   0.01251   0.00578  -0.0095   0.0249   1.0000
   6.500   0.7515   0.01288   0.00614  -0.0081   0.0218   1.0000
   6.750   0.7721   0.01324   0.00654  -0.0068   0.0193   1.0000
   7.000   0.7929   0.01358   0.00691  -0.0055   0.0170   1.0000
   7.250   0.8130   0.01401   0.00736  -0.0041   0.0148   1.0000
   7.500   0.8321   0.01456   0.00796  -0.0025   0.0134   1.0000
   7.750   0.8521   0.01501   0.00848  -0.0011   0.0125   1.0000
   8.000   0.8720   0.01548   0.00900   0.0003   0.0115   1.0000
   8.250   0.8916   0.01597   0.00953   0.0017   0.0106   1.0000
   8.500   0.9092   0.01669   0.01030   0.0035   0.0095   1.0000
   8.750   0.9271   0.01737   0.01107   0.0051   0.0091   1.0000
   9.000   0.9454   0.01801   0.01181   0.0067   0.0087   1.0000
   9.250   0.9629   0.01872   0.01264   0.0084   0.0083   1.0000
   9.500   0.9800   0.01947   0.01349   0.0101   0.0079   1.0000
   9.750   0.9967   0.02023   0.01434   0.0117   0.0076   1.0000
  10.000   1.0130   0.02101   0.01520   0.0134   0.0073   1.0000
  10.250   1.0284   0.02183   0.01611   0.0152   0.0070   1.0000
  10.500   1.0408   0.02290   0.01729   0.0173   0.0067   1.0000
  10.750   1.0509   0.02418   0.01870   0.0197   0.0064   1.0000
  11.000   1.0629   0.02523   0.01989   0.0218   0.0063   1.0000
  11.250   1.0751   0.02618   0.02099   0.0238   0.0060   1.0000
  11.500   1.0832   0.02740   0.02237   0.0262   0.0058   1.0000
  11.750   1.0848   0.02876   0.02390   0.0296   0.0058   1.0000
  12.000   1.0870   0.03004   0.02533   0.0326   0.0056   1.0000
  12.250   1.0867   0.03163   0.02708   0.0354   0.0055   1.0000
  12.500   1.0852   0.03345   0.02905   0.0376   0.0054   1.0000
  12.750   1.0846   0.03533   0.03107   0.0391   0.0053   1.0000
  13.000   1.0773   0.03811   0.03404   0.0401   0.0052   1.0000
  13.250   1.0746   0.04071   0.03678   0.0401   0.0051   1.0000
  13.500   1.0671   0.04424   0.04048   0.0393   0.0051   1.0000
  13.750   1.0564   0.04868   0.04509   0.0373   0.0051   1.0000
  14.000   1.0462   0.05366   0.05022   0.0343   0.0050   1.0000
  14.250   1.0303   0.06014   0.05688   0.0301   0.0050   1.0000
  14.500   1.0001   0.06993   0.06690   0.0236   0.0051   1.0000
  14.750   0.9644   0.08152   0.07871   0.0164   0.0052   1.0000
  15.000   0.9255   0.09415   0.09151   0.0092   0.0053   1.0000
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