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EPPLER 426 AIRFOIL (e426-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: EPPLER 426 AIRFOIL (e426-il)
Reynolds number: 500,000
Max Cl/Cd: 74.88 at α=8.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e426-il-500000.txt
Download as CSV file: xf-e426-il-500000.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 =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -15.750  -1.0615   0.08206   0.07826  -0.0161   1.0000   0.0172
 -15.500  -1.0779   0.07552   0.07161  -0.0199   1.0000   0.0174
 -15.250  -1.0918   0.06957   0.06556  -0.0233   1.0000   0.0173
 -15.000  -1.1062   0.06351   0.05938  -0.0270   1.0000   0.0174
 -14.750  -1.1200   0.05764   0.05339  -0.0306   1.0000   0.0175
 -14.500  -1.1315   0.05214   0.04776  -0.0341   1.0000   0.0176
 -14.250  -1.1412   0.04713   0.04262  -0.0373   1.0000   0.0176
 -14.000  -1.1489   0.04257   0.03792  -0.0402   1.0000   0.0178
 -13.750  -1.1549   0.03863   0.03384  -0.0425   1.0000   0.0179
 -13.500  -1.1579   0.03543   0.03050  -0.0440   1.0000   0.0181
 -13.250  -1.1597   0.03289   0.02782  -0.0445   1.0000   0.0182
 -13.000  -1.1707   0.03027   0.02510  -0.0433   1.0000   0.0185
 -12.750  -1.1760   0.02849   0.02324  -0.0407   1.0000   0.0188
 -12.500  -1.1698   0.02699   0.02167  -0.0392   1.0000   0.0191
 -12.250  -1.1587   0.02574   0.02034  -0.0379   1.0000   0.0196
 -12.000  -1.1447   0.02463   0.01914  -0.0368   1.0000   0.0202
 -11.750  -1.1285   0.02363   0.01804  -0.0357   1.0000   0.0210
 -11.500  -1.1101   0.02276   0.01706  -0.0348   1.0000   0.0217
 -11.250  -1.0967   0.02131   0.01555  -0.0335   1.0000   0.0227
 -11.000  -1.0776   0.02041   0.01460  -0.0327   1.0000   0.0239
 -10.750  -1.0572   0.01960   0.01370  -0.0318   1.0000   0.0252
 -10.500  -1.0383   0.01855   0.01258  -0.0308   1.0000   0.0269
 -10.250  -1.0174   0.01772   0.01170  -0.0300   1.0000   0.0290
 -10.000  -0.9967   0.01681   0.01073  -0.0292   1.0000   0.0320
  -9.250  -0.9314   0.01437   0.00836  -0.0268   1.0000   0.0539
  -9.000  -0.9067   0.01400   0.00806  -0.0262   1.0000   0.0667
  -8.750  -0.8806   0.01387   0.00786  -0.0258   1.0000   0.0740
  -8.500  -0.8562   0.01350   0.00753  -0.0252   1.0000   0.0799
  -8.250  -0.8303   0.01336   0.00730  -0.0246   1.0000   0.0840
  -8.000  -0.8061   0.01297   0.00693  -0.0240   1.0000   0.0884
  -7.750  -0.7810   0.01273   0.00669  -0.0234   1.0000   0.0924
  -7.500  -0.7554   0.01257   0.00646  -0.0228   1.0000   0.0957
  -7.250  -0.7310   0.01221   0.00611  -0.0221   1.0000   0.0994
  -7.000  -0.7059   0.01200   0.00592  -0.0215   1.0000   0.1036
  -6.750  -0.6803   0.01185   0.00573  -0.0208   1.0000   0.1071
  -6.500  -0.6553   0.01161   0.00545  -0.0202   1.0000   0.1099
  -6.250  -0.6308   0.01130   0.00519  -0.0194   1.0000   0.1139
  -6.000  -0.6056   0.01111   0.00500  -0.0187   1.0000   0.1173
  -5.750  -0.5804   0.01096   0.00481  -0.0180   1.0000   0.1206
  -5.500  -0.5560   0.01066   0.00453  -0.0172   1.0000   0.1247
  -5.250  -0.5315   0.01042   0.00433  -0.0165   1.0000   0.1289
  -5.000  -0.5068   0.01024   0.00414  -0.0157   1.0000   0.1329
  -4.750  -0.4825   0.01004   0.00393  -0.0148   1.0000   0.1372
  -4.500  -0.4590   0.00977   0.00373  -0.0139   1.0000   0.1435
  -4.250  -0.4316   0.00967   0.00362  -0.0137   0.9991   0.1497
  -4.000  -0.3905   0.00941   0.00343  -0.0165   0.9941   0.1583
  -3.750  -0.3498   0.00928   0.00329  -0.0190   0.9870   0.1656
  -3.500  -0.3076   0.00901   0.00308  -0.0218   0.9756   0.1738
  -3.250  -0.2660   0.00883   0.00290  -0.0244   0.9550   0.1811
  -3.000  -0.2222   0.00858   0.00267  -0.0274   0.9261   0.1893
  -2.750  -0.1862   0.00849   0.00249  -0.0286   0.8888   0.1970
  -2.500  -0.1594   0.00844   0.00235  -0.0280   0.8514   0.2045
  -2.250  -0.1333   0.00840   0.00223  -0.0272   0.8186   0.2133
  -2.000  -0.1071   0.00833   0.00211  -0.0266   0.7899   0.2242
  -1.750  -0.0808   0.00825   0.00200  -0.0259   0.7630   0.2397
  -1.500  -0.0544   0.00813   0.00190  -0.0254   0.7381   0.2658
  -1.250  -0.0286   0.00789   0.00180  -0.0249   0.7137   0.3203
  -1.000  -0.0028   0.00764   0.00175  -0.0244   0.6894   0.3962
  -0.750   0.0235   0.00750   0.00172  -0.0239   0.6647   0.4537
  -0.500   0.0499   0.00742   0.00171  -0.0234   0.6415   0.5021
  -0.250   0.0766   0.00734   0.00171  -0.0229   0.6177   0.5442
   0.000   0.1033   0.00732   0.00171  -0.0224   0.5936   0.5795
   0.250   0.1300   0.00731   0.00173  -0.0219   0.5690   0.6148
   0.500   0.1566   0.00732   0.00176  -0.0213   0.5431   0.6490
   0.750   0.1832   0.00734   0.00180  -0.0208   0.5160   0.6796
   1.000   0.2097   0.00741   0.00184  -0.0202   0.4851   0.7070
   1.250   0.2358   0.00751   0.00189  -0.0196   0.4482   0.7345
   1.500   0.2614   0.00764   0.00195  -0.0189   0.4042   0.7632
   1.750   0.2861   0.00786   0.00204  -0.0181   0.3476   0.7943
   2.000   0.3104   0.00808   0.00215  -0.0171   0.3001   0.8277
   2.250   0.3345   0.00823   0.00229  -0.0160   0.2744   0.8659
   2.500   0.3597   0.00832   0.00243  -0.0150   0.2584   0.9189
   2.750   0.4004   0.00851   0.00257  -0.0173   0.2442   0.9710
   3.000   0.4455   0.00868   0.00269  -0.0209   0.2329   0.9981
   3.250   0.4723   0.00890   0.00284  -0.0206   0.2251   1.0000
   3.500   0.4980   0.00904   0.00297  -0.0200   0.2190   1.0000
   3.750   0.5236   0.00927   0.00312  -0.0194   0.2128   1.0000
   4.000   0.5497   0.00945   0.00329  -0.0189   0.2075   1.0000
   4.250   0.5762   0.00961   0.00343  -0.0184   0.2019   1.0000
   4.500   0.6023   0.00985   0.00362  -0.0180   0.1963   1.0000
   4.750   0.6287   0.01005   0.00382  -0.0175   0.1915   1.0000
   5.000   0.6556   0.01020   0.00398  -0.0171   0.1865   1.0000
   5.250   0.6819   0.01044   0.00417  -0.0167   0.1807   1.0000
   5.500   0.7083   0.01068   0.00441  -0.0163   0.1755   1.0000
   5.750   0.7354   0.01083   0.00458  -0.0160   0.1702   1.0000
   6.000   0.7614   0.01110   0.00480  -0.0155   0.1638   1.0000
   6.250   0.7883   0.01128   0.00501  -0.0152   0.1578   1.0000
   6.500   0.8150   0.01147   0.00518  -0.0149   0.1509   1.0000
   6.750   0.8412   0.01173   0.00543  -0.0145   0.1446   1.0000
   7.000   0.8679   0.01192   0.00563  -0.0141   0.1385   1.0000
   7.250   0.8937   0.01223   0.00590  -0.0137   0.1320   1.0000
   7.500   0.9204   0.01242   0.00613  -0.0133   0.1261   1.0000
   7.750   0.9457   0.01277   0.00642  -0.0129   0.1195   1.0000
   8.000   0.9721   0.01299   0.00668  -0.0125   0.1140   1.0000
   8.250   0.9970   0.01339   0.00702  -0.0120   0.1075   1.0000
   8.500   1.0229   0.01366   0.00734  -0.0116   0.1027   1.0000
   8.750   1.0476   0.01405   0.00772  -0.0111   0.0973   1.0000
   9.000   1.0725   0.01443   0.00814  -0.0106   0.0927   1.0000
   9.250   1.0975   0.01479   0.00851  -0.0101   0.0878   1.0000
   9.500   1.1212   0.01529   0.00900  -0.0095   0.0827   1.0000
   9.750   1.1462   0.01561   0.00938  -0.0090   0.0783   1.0000
  10.000   1.1694   0.01613   0.00988  -0.0084   0.0733   1.0000
  10.250   1.1939   0.01649   0.01030  -0.0078   0.0689   1.0000
  10.500   1.2168   0.01702   0.01080  -0.0072   0.0639   1.0000
  10.750   1.2403   0.01745   0.01129  -0.0066   0.0598   1.0000
  11.000   1.2623   0.01803   0.01186  -0.0058   0.0555   1.0000
  11.250   1.2849   0.01853   0.01242  -0.0051   0.0522   1.0000
  11.500   1.3060   0.01916   0.01305  -0.0043   0.0481   1.0000
  11.750   1.3274   0.01972   0.01367  -0.0035   0.0445   1.0000
  12.000   1.3468   0.02046   0.01441  -0.0026   0.0404   1.0000
  12.250   1.3660   0.02117   0.01515  -0.0016   0.0357   1.0000
  12.500   1.3827   0.02208   0.01607  -0.0004   0.0300   1.0000
  12.750   1.3972   0.02313   0.01714   0.0010   0.0243   1.0000
  13.000   1.4086   0.02433   0.01836   0.0027   0.0191   1.0000
  13.250   1.4175   0.02558   0.01965   0.0047   0.0166   1.0000
  13.500   1.4225   0.02674   0.02088   0.0072   0.0155   1.0000
  13.750   1.4226   0.02820   0.02242   0.0099   0.0146   1.0000
  14.000   1.4237   0.02969   0.02402   0.0120   0.0141   1.0000
  14.250   1.4217   0.03162   0.02606   0.0135   0.0136   1.0000
  14.500   1.4182   0.03395   0.02852   0.0143   0.0133   1.0000
  14.750   1.4117   0.03696   0.03166   0.0142   0.0130   1.0000
  15.000   1.4021   0.04076   0.03560   0.0131   0.0128   1.0000
  15.250   1.3895   0.04544   0.04042   0.0111   0.0127   1.0000
  15.500   1.3721   0.05129   0.04644   0.0080   0.0125   1.0000
  15.750   1.3505   0.05825   0.05358   0.0040   0.0125   1.0000
  16.000   1.3260   0.06607   0.06158  -0.0006   0.0126   1.0000
  16.250   1.2990   0.07462   0.07033  -0.0055   0.0128   1.0000
  16.500   1.2653   0.08457   0.08046  -0.0112   0.0130   1.0000
  16.750   1.2364   0.09368   0.08972  -0.0163   0.0132   1.0000
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