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EPPLER 426 AIRFOIL (e426-il) Xfoil prediction polar at RE=1,000,000 Ncrit=5


Details Polar file
Airfoil: EPPLER 426 AIRFOIL (e426-il)
Reynolds number: 1,000,000
Max Cl/Cd: 89.05 at α=8°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-e426-il-1000000-n5.txt
Download as CSV file: xf-e426-il-1000000-n5.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 =     1.000 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -16.500  -1.1666   0.07929   0.07599  -0.0175   1.0000   0.0086
 -16.250  -1.2606   0.05943   0.05578  -0.0297   1.0000   0.0083
 -16.000  -1.3059   0.04777   0.04385  -0.0379   1.0000   0.0082
 -15.750  -1.3274   0.04077   0.03667  -0.0430   1.0000   0.0082
 -15.500  -1.3435   0.03549   0.03122  -0.0464   1.0000   0.0083
 -15.250  -1.3516   0.03204   0.02765  -0.0478   1.0000   0.0083
 -15.000  -1.3568   0.02959   0.02508  -0.0477   1.0000   0.0084
 -14.750  -1.3601   0.02782   0.02321  -0.0461   1.0000   0.0085
 -14.500  -1.3601   0.02654   0.02185  -0.0436   1.0000   0.0086
 -14.250  -1.3524   0.02542   0.02064  -0.0418   1.0000   0.0087
 -14.000  -1.3404   0.02437   0.01952  -0.0404   1.0000   0.0089
 -13.750  -1.3262   0.02342   0.01849  -0.0392   1.0000   0.0090
 -13.500  -1.3100   0.02255   0.01755  -0.0382   1.0000   0.0092
 -13.250  -1.2925   0.02173   0.01665  -0.0372   1.0000   0.0094
 -13.000  -1.2740   0.02097   0.01582  -0.0363   1.0000   0.0096
 -12.750  -1.2543   0.02026   0.01505  -0.0354   1.0000   0.0098
 -12.500  -1.2339   0.01960   0.01432  -0.0346   1.0000   0.0099
 -12.250  -1.2139   0.01884   0.01351  -0.0338   1.0000   0.0102
 -12.000  -1.1929   0.01816   0.01277  -0.0330   1.0000   0.0106
 -11.750  -1.1711   0.01755   0.01211  -0.0323   1.0000   0.0110
 -11.500  -1.1488   0.01697   0.01149  -0.0316   1.0000   0.0114
 -11.250  -1.1259   0.01645   0.01092  -0.0309   1.0000   0.0119
 -11.000  -1.1026   0.01596   0.01039  -0.0303   1.0000   0.0124
 -10.750  -1.0797   0.01541   0.00981  -0.0296   1.0000   0.0132
 -10.500  -1.0563   0.01492   0.00929  -0.0289   1.0000   0.0142
 -10.250  -1.0323   0.01449   0.00883  -0.0283   1.0000   0.0150
 -10.000  -1.0087   0.01400   0.00833  -0.0276   1.0000   0.0164
  -9.750  -0.9846   0.01359   0.00789  -0.0270   1.0000   0.0178
  -9.500  -0.9605   0.01316   0.00745  -0.0263   1.0000   0.0196
  -9.250  -0.9362   0.01277   0.00705  -0.0257   1.0000   0.0215
  -9.000  -0.9121   0.01236   0.00663  -0.0250   1.0000   0.0239
  -8.750  -0.8877   0.01199   0.00625  -0.0243   1.0000   0.0265
  -8.500  -0.8634   0.01160   0.00587  -0.0236   1.0000   0.0298
  -8.250  -0.8392   0.01121   0.00548  -0.0229   1.0000   0.0338
  -8.000  -0.8151   0.01077   0.00508  -0.0222   1.0000   0.0406
  -7.750  -0.7915   0.01028   0.00471  -0.0214   1.0000   0.0551
  -7.500  -0.7665   0.01002   0.00448  -0.0208   1.0000   0.0629
  -7.250  -0.7413   0.00978   0.00426  -0.0201   1.0000   0.0667
  -7.000  -0.7144   0.00957   0.00406  -0.0198   0.9996   0.0704
  -6.750  -0.6800   0.00940   0.00388  -0.0211   0.9965   0.0729
  -6.500  -0.6462   0.00919   0.00367  -0.0222   0.9926   0.0765
  -6.250  -0.6136   0.00896   0.00347  -0.0231   0.9871   0.0808
  -6.000  -0.5784   0.00878   0.00329  -0.0246   0.9814   0.0835
  -5.750  -0.5445   0.00863   0.00312  -0.0257   0.9700   0.0848
  -5.500  -0.5057   0.00840   0.00290  -0.0278   0.9400   0.0895
  -5.250  -0.4716   0.00829   0.00269  -0.0288   0.8984   0.0933
  -5.000  -0.4449   0.00825   0.00255  -0.0283   0.8687   0.0963
  -4.750  -0.4185   0.00817   0.00241  -0.0277   0.8414   0.1009
  -4.500  -0.3925   0.00814   0.00228  -0.0271   0.8029   0.1059
  -4.250  -0.3669   0.00817   0.00215  -0.0263   0.7536   0.1118
  -4.000  -0.3406   0.00818   0.00203  -0.0258   0.7115   0.1188
  -3.750  -0.3134   0.00818   0.00193  -0.0254   0.6784   0.1237
  -3.500  -0.2860   0.00814   0.00183  -0.0251   0.6509   0.1298
  -3.250  -0.2584   0.00814   0.00174  -0.0248   0.6241   0.1343
  -3.000  -0.2308   0.00814   0.00165  -0.0246   0.5959   0.1382
  -2.750  -0.2031   0.00812   0.00158  -0.0243   0.5722   0.1433
  -2.500  -0.1751   0.00811   0.00151  -0.0241   0.5528   0.1476
  -2.250  -0.1470   0.00811   0.00145  -0.0239   0.5329   0.1507
  -2.000  -0.1192   0.00811   0.00139  -0.0237   0.5103   0.1557
  -1.750  -0.0913   0.00812   0.00134  -0.0235   0.4871   0.1605
  -1.500  -0.0633   0.00814   0.00130  -0.0233   0.4645   0.1648
  -1.250  -0.0354   0.00816   0.00126  -0.0231   0.4427   0.1692
  -1.000  -0.0075   0.00818   0.00123  -0.0229   0.4199   0.1759
  -0.750   0.0204   0.00823   0.00121  -0.0227   0.3939   0.1821
  -0.500   0.0480   0.00827   0.00120  -0.0225   0.3646   0.1912
  -0.250   0.0755   0.00836   0.00120  -0.0223   0.3302   0.2013
   0.000   0.1029   0.00843   0.00121  -0.0221   0.2969   0.2184
   0.250   0.1303   0.00844   0.00122  -0.0219   0.2725   0.2464
   0.500   0.1577   0.00841   0.00124  -0.0217   0.2537   0.2802
   0.750   0.1852   0.00835   0.00126  -0.0215   0.2390   0.3224
   1.000   0.2126   0.00830   0.00129  -0.0213   0.2254   0.3678
   1.250   0.2401   0.00825   0.00134  -0.0211   0.2133   0.4144
   1.500   0.2678   0.00820   0.00139  -0.0209   0.2057   0.4539
   1.750   0.2957   0.00821   0.00145  -0.0207   0.1986   0.4812
   2.000   0.3236   0.00823   0.00151  -0.0206   0.1928   0.5045
   2.250   0.3516   0.00824   0.00158  -0.0204   0.1876   0.5278
   2.500   0.3794   0.00826   0.00165  -0.0202   0.1819   0.5548
   3.000   0.4348   0.00824   0.00183  -0.0197   0.1743   0.6243
   3.250   0.4623   0.00823   0.00193  -0.0194   0.1706   0.6636
   3.500   0.4897   0.00827   0.00204  -0.0191   0.1659   0.6954
   3.750   0.5171   0.00831   0.00215  -0.0188   0.1614   0.7246
   4.000   0.5444   0.00831   0.00227  -0.0185   0.1588   0.7572
   4.250   0.5709   0.00830   0.00239  -0.0179   0.1553   0.7993
   4.500   0.5960   0.00826   0.00252  -0.0170   0.1507   0.8556
   4.750   0.6193   0.00822   0.00265  -0.0157   0.1464   0.9217
   5.000   0.6566   0.00828   0.00277  -0.0174   0.1425   0.9794
   5.250   0.6908   0.00844   0.00290  -0.0186   0.1362   1.0000
   5.500   0.7177   0.00861   0.00304  -0.0183   0.1300   1.0000
   5.750   0.7442   0.00883   0.00319  -0.0179   0.1197   1.0000
   6.000   0.7709   0.00905   0.00336  -0.0175   0.1111   1.0000
   6.250   0.7975   0.00928   0.00355  -0.0172   0.1039   1.0000
   6.500   0.8240   0.00952   0.00376  -0.0168   0.0981   1.0000
   6.750   0.8506   0.00974   0.00396  -0.0165   0.0935   1.0000
   7.000   0.8772   0.00996   0.00417  -0.0161   0.0889   1.0000
   7.250   0.9034   0.01025   0.00442  -0.0157   0.0826   1.0000
   7.500   0.9299   0.01049   0.00465  -0.0153   0.0781   1.0000
   7.750   0.9558   0.01079   0.00492  -0.0149   0.0730   1.0000
   8.000   0.9822   0.01103   0.00516  -0.0146   0.0691   1.0000
   8.250   1.0078   0.01136   0.00546  -0.0141   0.0636   1.0000
   8.500   1.0337   0.01166   0.00575  -0.0137   0.0586   1.0000
   8.750   1.0589   0.01203   0.00609  -0.0133   0.0527   1.0000
   9.000   1.0837   0.01246   0.00647  -0.0128   0.0461   1.0000
   9.250   1.1082   0.01289   0.00687  -0.0122   0.0404   1.0000
   9.500   1.1329   0.01330   0.00727  -0.0117   0.0363   1.0000
   9.750   1.1574   0.01372   0.00769  -0.0112   0.0327   1.0000
  10.000   1.1815   0.01418   0.00814  -0.0106   0.0295   1.0000
  10.250   1.2055   0.01463   0.00859  -0.0100   0.0262   1.0000
  10.500   1.2283   0.01521   0.00915  -0.0093   0.0210   1.0000
  11.000   1.2695   0.01682   0.01071  -0.0075   0.0086   1.0000
  11.250   1.2916   0.01739   0.01133  -0.0067   0.0078   1.0000
  11.500   1.3135   0.01795   0.01193  -0.0059   0.0074   1.0000
  11.750   1.3349   0.01853   0.01256  -0.0051   0.0071   1.0000
  12.000   1.3555   0.01917   0.01325  -0.0042   0.0068   1.0000
  12.250   1.3749   0.01988   0.01401  -0.0032   0.0065   1.0000
  12.500   1.3934   0.02063   0.01482  -0.0021   0.0062   1.0000
  12.750   1.4123   0.02129   0.01554  -0.0010   0.0061   1.0000
  13.000   1.4298   0.02200   0.01632   0.0002   0.0059   1.0000
  13.250   1.4459   0.02279   0.01717   0.0015   0.0058   1.0000
  13.500   1.4607   0.02358   0.01804   0.0029   0.0057   1.0000
  13.750   1.4721   0.02447   0.01900   0.0048   0.0056   1.0000
  14.000   1.4789   0.02537   0.01998   0.0074   0.0055   1.0000
  14.250   1.4832   0.02643   0.02111   0.0099   0.0054   1.0000
  14.500   1.4860   0.02767   0.02243   0.0121   0.0053   1.0000
  14.750   1.4864   0.02923   0.02408   0.0139   0.0053   1.0000
  15.000   1.4854   0.03112   0.02608   0.0151   0.0052   1.0000
  15.250   1.4826   0.03347   0.02853   0.0157   0.0052   1.0000
  15.500   1.4771   0.03644   0.03161   0.0155   0.0051   1.0000
  15.750   1.4697   0.04002   0.03531   0.0144   0.0050   1.0000
  16.000   1.4582   0.04452   0.03995   0.0125   0.0050   1.0000
  16.250   1.4445   0.04977   0.04534   0.0099   0.0051   1.0000
  16.500   1.4197   0.05709   0.05284   0.0057   0.0050   1.0000
  16.750   1.3933   0.06513   0.06106   0.0011   0.0051   1.0000
  17.000   1.3523   0.07609   0.07224  -0.0053   0.0052   1.0000
  17.250   1.2987   0.08967   0.08605  -0.0132   0.0052   1.0000
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