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EPPLER 426 AIRFOIL (e426-il) Xfoil prediction polar at RE=200,000 Ncrit=9


Details Polar file
Airfoil: EPPLER 426 AIRFOIL (e426-il)
Reynolds number: 200,000
Max Cl/Cd: 48.21 at α=8.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e426-il-200000.txt
Download as CSV file: xf-e426-il-200000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER 426 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
  ------ -------- --------- --------- -------- -------- --------
 -14.750  -0.8712   0.10467   0.10063  -0.0037   1.0000   0.0356
 -14.500  -0.9269   0.08889   0.08468  -0.0142   1.0000   0.0348
 -14.250  -0.9682   0.07682   0.07239  -0.0229   1.0000   0.0341
 -14.000  -0.9994   0.06741   0.06277  -0.0301   1.0000   0.0338
 -13.750  -1.0227   0.06005   0.05519  -0.0356   1.0000   0.0337
 -13.500  -1.0408   0.05408   0.04900  -0.0397   1.0000   0.0338
 -13.250  -1.0541   0.04932   0.04403  -0.0426   1.0000   0.0339
 -13.000  -1.0649   0.04536   0.03987  -0.0443   1.0000   0.0342
 -12.750  -1.0731   0.04214   0.03645  -0.0449   1.0000   0.0346
 -12.500  -1.0793   0.03953   0.03362  -0.0442   1.0000   0.0350
 -12.250  -1.0833   0.03737   0.03124  -0.0425   1.0000   0.0354
 -12.000  -1.0803   0.03499   0.02875  -0.0410   1.0000   0.0362
 -11.750  -1.0720   0.03314   0.02689  -0.0398   1.0000   0.0373
 -11.500  -1.0617   0.03155   0.02524  -0.0386   1.0000   0.0388
 -11.250  -1.0501   0.02995   0.02345  -0.0374   1.0000   0.0407
 -11.000  -1.0382   0.02818   0.02160  -0.0362   1.0000   0.0427
 -10.750  -1.0229   0.02691   0.02032  -0.0351   1.0000   0.0453
 -10.500  -1.0066   0.02553   0.01877  -0.0340   1.0000   0.0486
 -10.250  -0.9887   0.02449   0.01777  -0.0331   1.0000   0.0524
 -10.000  -0.9693   0.02353   0.01675  -0.0323   1.0000   0.0577
  -9.750  -0.9481   0.02284   0.01596  -0.0315   1.0000   0.0649
  -9.500  -0.9260   0.02241   0.01541  -0.0308   1.0000   0.0733
  -9.250  -0.9048   0.02181   0.01485  -0.0301   1.0000   0.0820
  -9.000  -0.8826   0.02137   0.01439  -0.0294   1.0000   0.0906
  -8.750  -0.8598   0.02103   0.01393  -0.0287   1.0000   0.0988
  -8.500  -0.8356   0.02110   0.01398  -0.0281   1.0000   0.1058
  -8.250  -0.8121   0.02082   0.01364  -0.0275   1.0000   0.1120
  -8.000  -0.7876   0.02085   0.01365  -0.0268   1.0000   0.1179
  -7.750  -0.7639   0.02041   0.01303  -0.0261   1.0000   0.1231
  -7.500  -0.7393   0.02017   0.01286  -0.0256   1.0000   0.1277
  -7.250  -0.7149   0.01991   0.01250  -0.0249   1.0000   0.1326
  -7.000  -0.6907   0.01942   0.01183  -0.0242   1.0000   0.1366
  -6.750  -0.6664   0.01881   0.01130  -0.0236   1.0000   0.1407
  -6.500  -0.6419   0.01855   0.01101  -0.0229   1.0000   0.1455
  -6.250  -0.6173   0.01832   0.01062  -0.0221   1.0000   0.1503
  -6.000  -0.5933   0.01746   0.00979  -0.0214   1.0000   0.1544
  -5.750  -0.5688   0.01691   0.00924  -0.0207   1.0000   0.1577
  -5.500  -0.5443   0.01640   0.00869  -0.0199   1.0000   0.1615
  -5.250  -0.5197   0.01596   0.00814  -0.0191   1.0000   0.1655
  -5.000  -0.4958   0.01525   0.00747  -0.0184   1.0000   0.1703
  -4.750  -0.4718   0.01483   0.00710  -0.0176   1.0000   0.1758
  -4.500  -0.4476   0.01449   0.00668  -0.0167   1.0000   0.1820
  -4.250  -0.4244   0.01388   0.00618  -0.0158   1.0000   0.1884
  -4.000  -0.4011   0.01355   0.00587  -0.0149   1.0000   0.1960
  -3.750  -0.3786   0.01312   0.00549  -0.0139   1.0000   0.2036
  -3.500  -0.3567   0.01284   0.00526  -0.0129   1.0000   0.2118
  -3.250  -0.3359   0.01253   0.00502  -0.0117   1.0000   0.2199
  -3.000  -0.3164   0.01234   0.00489  -0.0104   1.0000   0.2288
  -2.750  -0.2792   0.01206   0.00472  -0.0127   0.9941   0.2413
  -2.500  -0.2293   0.01170   0.00449  -0.0172   0.9830   0.2584
  -2.250  -0.1802   0.01125   0.00420  -0.0213   0.9671   0.2809
  -2.000  -0.1355   0.01070   0.00391  -0.0244   0.9463   0.3171
  -1.750  -0.0933   0.01005   0.00371  -0.0271   0.9236   0.4024
  -1.500  -0.0558   0.00959   0.00364  -0.0285   0.8986   0.5043
  -1.250  -0.0255   0.00939   0.00362  -0.0283   0.8706   0.5707
  -1.000   0.0009   0.00931   0.00363  -0.0272   0.8419   0.6193
  -0.750   0.0259   0.00928   0.00363  -0.0258   0.8140   0.6565
  -0.500   0.0506   0.00926   0.00363  -0.0245   0.7871   0.6893
  -0.250   0.0752   0.00927   0.00362  -0.0231   0.7621   0.7206
   0.000   0.0995   0.00925   0.00363  -0.0216   0.7365   0.7511
   0.250   0.1233   0.00926   0.00363  -0.0200   0.7116   0.7826
   0.500   0.1470   0.00925   0.00364  -0.0184   0.6854   0.8148
   0.750   0.1705   0.00927   0.00363  -0.0167   0.6598   0.8482
   1.000   0.1959   0.00927   0.00364  -0.0154   0.6323   0.8831
   1.250   0.2274   0.00934   0.00363  -0.0153   0.6021   0.9189
   1.500   0.2672   0.00946   0.00363  -0.0172   0.5650   0.9543
   1.750   0.3152   0.00965   0.00360  -0.0209   0.5143   0.9848
   2.000   0.3545   0.00993   0.00356  -0.0233   0.4524   1.0000
   2.250   0.3737   0.01027   0.00359  -0.0218   0.3984   1.0000
   2.500   0.3945   0.01068   0.00369  -0.0206   0.3555   1.0000
   2.750   0.4171   0.01108   0.00385  -0.0196   0.3265   1.0000
   3.000   0.4407   0.01146   0.00405  -0.0188   0.3072   1.0000
   3.500   0.4902   0.01217   0.00453  -0.0175   0.2803   1.0000
   3.750   0.5155   0.01255   0.00483  -0.0169   0.2705   1.0000
   4.000   0.5407   0.01295   0.00512  -0.0164   0.2613   1.0000
   4.250   0.5666   0.01329   0.00545  -0.0159   0.2526   1.0000
   4.500   0.5922   0.01372   0.00578  -0.0154   0.2449   1.0000
   4.750   0.6183   0.01409   0.00617  -0.0149   0.2376   1.0000
   5.000   0.6441   0.01447   0.00651  -0.0144   0.2301   1.0000
   5.250   0.6700   0.01493   0.00695  -0.0140   0.2228   1.0000
   5.500   0.6959   0.01528   0.00731  -0.0135   0.2154   1.0000
   5.750   0.7216   0.01585   0.00782  -0.0131   0.2086   1.0000
   6.000   0.7475   0.01615   0.00821  -0.0126   0.2010   1.0000
   6.250   0.7729   0.01678   0.00872  -0.0122   0.1941   1.0000
   6.500   0.7985   0.01710   0.00919  -0.0116   0.1872   1.0000
   6.750   0.8240   0.01750   0.00956  -0.0112   0.1805   1.0000
   7.000   0.8491   0.01807   0.01018  -0.0107   0.1739   1.0000
   7.250   0.8743   0.01839   0.01055  -0.0101   0.1670   1.0000
   7.500   0.8991   0.01903   0.01112  -0.0097   0.1609   1.0000
   7.750   0.9239   0.01932   0.01158  -0.0091   0.1544   1.0000
   8.000   0.9485   0.01973   0.01194  -0.0086   0.1488   1.0000
   8.250   0.9727   0.02032   0.01265  -0.0080   0.1431   1.0000
   8.500   0.9970   0.02068   0.01307  -0.0073   0.1373   1.0000
   8.750   1.0208   0.02135   0.01368  -0.0068   0.1322   1.0000
   9.000   1.0442   0.02179   0.01433  -0.0061   0.1265   1.0000
   9.250   1.0675   0.02221   0.01471  -0.0054   0.1213   1.0000
   9.500   1.0898   0.02284   0.01547  -0.0047   0.1155   1.0000
   9.750   1.1121   0.02317   0.01581  -0.0039   0.1097   1.0000
  10.000   1.1332   0.02396   0.01667  -0.0031   0.1044   1.0000
  10.250   1.1544   0.02448   0.01729  -0.0023   0.0991   1.0000
  10.500   1.1745   0.02549   0.01821  -0.0015   0.0946   1.0000
  10.750   1.1938   0.02618   0.01915  -0.0005   0.0903   1.0000
  11.000   1.2130   0.02681   0.01982   0.0004   0.0861   1.0000
  11.250   1.2305   0.02787   0.02090   0.0014   0.0822   1.0000
  11.500   1.2474   0.02856   0.02180   0.0026   0.0782   1.0000
  11.750   1.2638   0.02926   0.02254   0.0037   0.0749   1.0000
  12.000   1.2778   0.03038   0.02371   0.0050   0.0718   1.0000
  12.250   1.2904   0.03120   0.02475   0.0065   0.0683   1.0000
  12.500   1.3015   0.03199   0.02561   0.0081   0.0654   1.0000
  12.750   1.3074   0.03322   0.02683   0.0101   0.0629   1.0000
  13.000   1.3108   0.03440   0.02827   0.0121   0.0600   1.0000
  13.250   1.3138   0.03563   0.02960   0.0136   0.0570   1.0000
  13.500   1.3134   0.03751   0.03146   0.0147   0.0547   1.0000
  13.750   1.3111   0.03975   0.03399   0.0150   0.0512   1.0000
  14.000   1.3077   0.04239   0.03671   0.0146   0.0484   1.0000
  14.250   1.2988   0.04609   0.04055   0.0134   0.0455   1.0000
  14.500   1.2900   0.05020   0.04481   0.0115   0.0429   1.0000
  14.750   1.2772   0.05507   0.04972   0.0089   0.0410   1.0000
  15.000   1.2610   0.06089   0.05572   0.0057   0.0392   1.0000
  15.250   1.2443   0.06711   0.06211   0.0021   0.0377   1.0000
  15.500   1.2275   0.07356   0.06868  -0.0017   0.0366   1.0000
  15.750   1.2103   0.08019   0.07540  -0.0056   0.0357   1.0000
  16.000   1.1956   0.08628   0.08148  -0.0089   0.0345   1.0000
  16.250   1.1765   0.09385   0.08924  -0.0133   0.0340   1.0000
  16.500   1.1555   0.10214   0.09770  -0.0183   0.0333   1.0000
  16.750   1.1373   0.10997   0.10568  -0.0229   0.0327   1.0000
  17.000   1.1179   0.11834   0.11419  -0.0278   0.0322   1.0000
  17.250   1.0981   0.12710   0.12307  -0.0332   0.0315   1.0000
  17.500   1.0736   0.13721   0.13333  -0.0393   0.0312   1.0000
  17.750   1.0988   0.13507   0.13097  -0.0373   0.0293   1.0000
  18.000   1.0714   0.14627   0.14236  -0.0444   0.0293   1.0000
  18.250   0.6749   0.20931   0.20619  -0.0766   0.0519   1.0000
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