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EPPLER 426 AIRFOIL (e426-il) Xfoil prediction polar at RE=500,000 Ncrit=5


Details Polar file
Airfoil: EPPLER 426 AIRFOIL (e426-il)
Reynolds number: 500,000
Max Cl/Cd: 74.36 at α=8°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-e426-il-500000-n5.txt
Download as CSV file: xf-e426-il-500000-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 =     0.500 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -15.500  -1.0554   0.08334   0.07944  -0.0127   1.0000   0.0123
 -15.250  -1.0988   0.07230   0.06827  -0.0192   1.0000   0.0122
 -15.000  -1.1463   0.06015   0.05593  -0.0268   1.0000   0.0120
 -14.750  -1.1823   0.04989   0.04544  -0.0339   1.0000   0.0119
 -14.500  -1.2033   0.04273   0.03808  -0.0392   1.0000   0.0120
 -14.250  -1.2166   0.03761   0.03279  -0.0427   1.0000   0.0120
 -14.000  -1.2250   0.03401   0.02904  -0.0443   1.0000   0.0121
 -13.750  -1.2309   0.03146   0.02635  -0.0442   1.0000   0.0122
 -13.500  -1.2333   0.02971   0.02448  -0.0426   1.0000   0.0123
 -13.250  -1.2326   0.02820   0.02287  -0.0405   1.0000   0.0125
 -13.000  -1.2251   0.02675   0.02133  -0.0390   1.0000   0.0128
 -12.750  -1.2132   0.02554   0.02003  -0.0379   1.0000   0.0131
 -12.500  -1.1985   0.02448   0.01888  -0.0368   1.0000   0.0135
 -12.250  -1.1818   0.02353   0.01783  -0.0358   1.0000   0.0140
 -12.000  -1.1639   0.02265   0.01686  -0.0349   1.0000   0.0146
 -11.750  -1.1447   0.02184   0.01596  -0.0341   1.0000   0.0151
 -11.500  -1.1262   0.02089   0.01495  -0.0332   1.0000   0.0158
 -11.250  -1.1060   0.02009   0.01409  -0.0324   1.0000   0.0166
 -11.000  -1.0848   0.01939   0.01330  -0.0317   1.0000   0.0175
 -10.750  -1.0631   0.01871   0.01255  -0.0309   1.0000   0.0185
 -10.500  -1.0415   0.01799   0.01179  -0.0302   1.0000   0.0198
 -10.250  -1.0188   0.01739   0.01114  -0.0295   1.0000   0.0213
 -10.000  -0.9962   0.01677   0.01046  -0.0289   1.0000   0.0231
  -9.750  -0.9730   0.01621   0.00986  -0.0282   1.0000   0.0254
  -9.500  -0.9500   0.01561   0.00924  -0.0275   1.0000   0.0282
  -9.250  -0.9266   0.01506   0.00866  -0.0268   1.0000   0.0316
  -8.500  -0.8565   0.01337   0.00707  -0.0248   1.0000   0.0542
  -8.250  -0.8318   0.01304   0.00675  -0.0242   1.0000   0.0631
  -8.000  -0.8070   0.01273   0.00645  -0.0236   1.0000   0.0686
  -7.750  -0.7817   0.01250   0.00618  -0.0230   1.0000   0.0728
  -7.500  -0.7569   0.01220   0.00588  -0.0223   1.0000   0.0763
  -7.250  -0.7320   0.01192   0.00560  -0.0217   1.0000   0.0801
  -7.000  -0.7068   0.01170   0.00535  -0.0210   1.0000   0.0837
  -6.750  -0.6819   0.01143   0.00508  -0.0203   1.0000   0.0874
  -6.500  -0.6571   0.01117   0.00484  -0.0197   1.0000   0.0913
  -6.250  -0.6320   0.01094   0.00460  -0.0190   1.0000   0.0942
  -6.000  -0.6069   0.01074   0.00438  -0.0183   1.0000   0.0966
  -5.750  -0.5821   0.01049   0.00416  -0.0176   1.0000   0.1010
  -5.500  -0.5475   0.01027   0.00396  -0.0189   0.9956   0.1059
  -5.250  -0.5128   0.01007   0.00376  -0.0203   0.9891   0.1100
  -5.000  -0.4770   0.00985   0.00357  -0.0218   0.9816   0.1151
  -4.500  -0.4075   0.00947   0.00322  -0.0244   0.9488   0.1268
  -4.250  -0.3652   0.00930   0.00303  -0.0272   0.9236   0.1334
  -4.000  -0.3290   0.00919   0.00284  -0.0286   0.8928   0.1387
  -3.750  -0.3013   0.00915   0.00270  -0.0282   0.8533   0.1442
  -3.500  -0.2759   0.00920   0.00257  -0.0272   0.8033   0.1488
  -3.250  -0.2504   0.00924   0.00243  -0.0264   0.7604   0.1531
  -3.000  -0.2242   0.00923   0.00231  -0.0258   0.7271   0.1583
  -2.750  -0.1974   0.00923   0.00220  -0.0253   0.6962   0.1633
  -2.500  -0.1705   0.00925   0.00209  -0.0248   0.6653   0.1676
  -2.250  -0.1435   0.00921   0.00199  -0.0244   0.6389   0.1734
  -2.000  -0.1160   0.00919   0.00191  -0.0241   0.6171   0.1793
  -1.750  -0.0885   0.00917   0.00183  -0.0238   0.5957   0.1857
  -1.500  -0.0611   0.00914   0.00176  -0.0235   0.5747   0.1942
  -1.250  -0.0337   0.00911   0.00170  -0.0232   0.5523   0.2043
  -1.000  -0.0063   0.00910   0.00164  -0.0230   0.5274   0.2165
  -0.750   0.0210   0.00908   0.00159  -0.0227   0.5025   0.2322
  -0.500   0.0481   0.00900   0.00155  -0.0224   0.4783   0.2611
  -0.250   0.0749   0.00887   0.00151  -0.0222   0.4541   0.3092
   0.000   0.1017   0.00876   0.00150  -0.0219   0.4274   0.3617
   0.250   0.1285   0.00871   0.00152  -0.0216   0.3983   0.4127
   0.500   0.1552   0.00872   0.00155  -0.0213   0.3646   0.4561
   0.750   0.1820   0.00880   0.00160  -0.0210   0.3281   0.4905
   1.000   0.2088   0.00892   0.00166  -0.0206   0.2948   0.5178
   1.250   0.2358   0.00902   0.00174  -0.0203   0.2704   0.5446
   1.500   0.2629   0.00908   0.00183  -0.0200   0.2533   0.5733
   1.750   0.2899   0.00915   0.00193  -0.0197   0.2387   0.6038
   2.000   0.3169   0.00923   0.00203  -0.0194   0.2259   0.6330
   2.250   0.3441   0.00926   0.00213  -0.0190   0.2170   0.6619
   2.500   0.3709   0.00930   0.00225  -0.0186   0.2100   0.6978
   2.750   0.3976   0.00930   0.00237  -0.0181   0.2044   0.7339
   3.000   0.4238   0.00932   0.00250  -0.0175   0.1979   0.7695
   3.250   0.4494   0.00934   0.00263  -0.0167   0.1923   0.8096
   3.500   0.4741   0.00930   0.00276  -0.0156   0.1879   0.8573
   3.750   0.5008   0.00928   0.00289  -0.0148   0.1831   0.9257
   4.000   0.5447   0.00943   0.00304  -0.0180   0.1772   0.9873
   4.250   0.5761   0.00957   0.00317  -0.0186   0.1728   1.0000
   4.500   0.6026   0.00973   0.00331  -0.0182   0.1681   1.0000
   4.750   0.6291   0.00993   0.00347  -0.0178   0.1636   1.0000
   5.000   0.6558   0.01010   0.00365  -0.0174   0.1597   1.0000
   5.250   0.6827   0.01026   0.00381  -0.0170   0.1548   1.0000
   5.500   0.7093   0.01047   0.00398  -0.0167   0.1498   1.0000
   5.750   0.7359   0.01067   0.00418  -0.0163   0.1452   1.0000
   6.000   0.7627   0.01085   0.00437  -0.0159   0.1396   1.0000
   6.250   0.7890   0.01110   0.00457  -0.0155   0.1326   1.0000
   6.500   0.8156   0.01130   0.00477  -0.0152   0.1249   1.0000
   6.750   0.8418   0.01157   0.00500  -0.0148   0.1178   1.0000
   7.000   0.8681   0.01183   0.00525  -0.0144   0.1116   1.0000
   7.250   0.8939   0.01213   0.00552  -0.0140   0.1054   1.0000
   7.500   0.9199   0.01242   0.00581  -0.0136   0.1000   1.0000
   7.750   0.9453   0.01277   0.00613  -0.0131   0.0944   1.0000
   8.000   0.9711   0.01306   0.00645  -0.0127   0.0895   1.0000
   8.250   0.9961   0.01346   0.00681  -0.0122   0.0837   1.0000
   8.500   1.0217   0.01376   0.00714  -0.0118   0.0791   1.0000
   8.750   1.0465   0.01415   0.00753  -0.0113   0.0740   1.0000
   9.000   1.0715   0.01451   0.00791  -0.0108   0.0697   1.0000
   9.250   1.0961   0.01492   0.00831  -0.0103   0.0646   1.0000
   9.500   1.1204   0.01534   0.00874  -0.0097   0.0598   1.0000
   9.750   1.1441   0.01583   0.00922  -0.0092   0.0549   1.0000
  10.000   1.1681   0.01627   0.00969  -0.0086   0.0509   1.0000
  10.250   1.1910   0.01682   0.01023  -0.0079   0.0464   1.0000
  10.500   1.2138   0.01735   0.01079  -0.0073   0.0422   1.0000
  10.750   1.2360   0.01794   0.01138  -0.0065   0.0382   1.0000
  11.000   1.2573   0.01859   0.01204  -0.0057   0.0344   1.0000
  11.250   1.2790   0.01917   0.01266  -0.0050   0.0315   1.0000
  11.500   1.2995   0.01985   0.01338  -0.0041   0.0283   1.0000
  11.750   1.3189   0.02060   0.01415  -0.0031   0.0243   1.0000
  12.000   1.3368   0.02146   0.01502  -0.0020   0.0184   1.0000
  12.250   1.3501   0.02269   0.01623  -0.0006   0.0121   1.0000
  12.500   1.3640   0.02377   0.01735   0.0009   0.0106   1.0000
  12.750   1.3775   0.02477   0.01844   0.0024   0.0099   1.0000
  13.000   1.3894   0.02580   0.01957   0.0040   0.0093   1.0000
  13.250   1.3964   0.02688   0.02073   0.0064   0.0090   1.0000
  13.500   1.4013   0.02801   0.02196   0.0087   0.0088   1.0000
  13.750   1.4024   0.02948   0.02353   0.0109   0.0085   1.0000
  14.000   1.4025   0.03118   0.02535   0.0126   0.0084   1.0000
  14.250   1.3992   0.03341   0.02770   0.0136   0.0082   1.0000
  14.500   1.3946   0.03612   0.03053   0.0137   0.0080   1.0000
  14.750   1.3882   0.03942   0.03398   0.0131   0.0079   1.0000
  15.000   1.3802   0.04332   0.03803   0.0116   0.0079   1.0000
  15.250   1.3693   0.04803   0.04289   0.0093   0.0078   1.0000
  15.500   1.3536   0.05384   0.04888   0.0061   0.0078   1.0000
  15.750   1.3305   0.06123   0.05645   0.0018   0.0078   1.0000
  16.000   1.2997   0.07033   0.06575  -0.0036   0.0078   1.0000
  16.250   1.2628   0.08086   0.07647  -0.0097   0.0080   1.0000
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