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EPPLER 428 AIRFOIL (e428-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: EPPLER 428 AIRFOIL (e428-il)
Reynolds number: 500,000
Max Cl/Cd: 74.49 at α=8.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e428-il-500000.txt
Download as CSV file: xf-e428-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER 428 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
  ------ -------- --------- --------- -------- -------- --------
 -18.250  -0.9185   0.15672   0.15389   0.0294   1.0000   0.0144
 -18.000  -0.9732   0.13784   0.13466   0.0177   1.0000   0.0140
 -17.750  -0.9934   0.12835   0.12499   0.0117   1.0000   0.0138
 -17.500  -1.0068   0.12076   0.11725   0.0070   1.0000   0.0137
 -17.250  -1.0169   0.11427   0.11064   0.0030   1.0000   0.0137
 -17.000  -1.0277   0.10797   0.10423  -0.0006   1.0000   0.0137
 -16.750  -1.0355   0.10225   0.09842  -0.0040   1.0000   0.0137
 -16.500  -1.0425   0.09680   0.09286  -0.0073   1.0000   0.0136
 -16.250  -1.0500   0.09152   0.08748  -0.0102   1.0000   0.0136
 -16.000  -1.0567   0.08650   0.08237  -0.0130   1.0000   0.0136
 -15.750  -1.0637   0.08175   0.07754  -0.0154   1.0000   0.0137
 -15.500  -1.0701   0.07724   0.07293  -0.0176   1.0000   0.0137
 -15.250  -1.0763   0.07272   0.06832  -0.0201   1.0000   0.0137
 -15.000  -1.0824   0.06837   0.06389  -0.0222   1.0000   0.0137
 -14.750  -1.0885   0.06407   0.05951  -0.0243   1.0000   0.0137
 -14.500  -1.0941   0.05979   0.05515  -0.0265   1.0000   0.0138
 -14.250  -1.1015   0.05548   0.05077  -0.0285   1.0000   0.0138
 -14.000  -1.1055   0.05131   0.04650  -0.0309   1.0000   0.0138
 -13.750  -1.1125   0.04698   0.04209  -0.0332   1.0000   0.0139
 -13.500  -1.1180   0.04283   0.03784  -0.0356   1.0000   0.0140
 -13.250  -1.1228   0.03893   0.03384  -0.0378   1.0000   0.0140
 -13.000  -1.1287   0.03529   0.03010  -0.0396   1.0000   0.0142
 -12.750  -1.1317   0.03253   0.02724  -0.0403   1.0000   0.0142
 -12.500  -1.1379   0.03022   0.02483  -0.0394   1.0000   0.0143
 -12.250  -1.1388   0.02868   0.02321  -0.0372   1.0000   0.0144
 -12.000  -1.1333   0.02716   0.02161  -0.0357   1.0000   0.0146
 -11.750  -1.1230   0.02584   0.02020  -0.0344   1.0000   0.0148
 -11.500  -1.1099   0.02463   0.01891  -0.0332   1.0000   0.0151
 -11.250  -1.0949   0.02349   0.01769  -0.0322   1.0000   0.0154
 -11.000  -1.0782   0.02243   0.01655  -0.0312   1.0000   0.0158
 -10.750  -1.0601   0.02147   0.01548  -0.0302   1.0000   0.0160
 -10.500  -1.0407   0.02057   0.01449  -0.0293   1.0000   0.0163
 -10.250  -1.0232   0.01938   0.01322  -0.0284   1.0000   0.0167
 -10.000  -1.0034   0.01840   0.01218  -0.0275   1.0000   0.0172
  -9.750  -0.9820   0.01759   0.01130  -0.0268   1.0000   0.0178
  -9.500  -0.9596   0.01687   0.01050  -0.0260   1.0000   0.0185
  -9.250  -0.9365   0.01624   0.00979  -0.0253   1.0000   0.0193
  -9.000  -0.9140   0.01549   0.00900  -0.0246   1.0000   0.0208
  -8.500  -0.8690   0.01394   0.00751  -0.0231   1.0000   0.0351
  -8.250  -0.8461   0.01324   0.00694  -0.0224   1.0000   0.0558
  -8.000  -0.8221   0.01274   0.00647  -0.0217   1.0000   0.0666
  -7.750  -0.7979   0.01226   0.00607  -0.0211   1.0000   0.0778
  -7.500  -0.7733   0.01189   0.00575  -0.0204   1.0000   0.0879
  -7.250  -0.7483   0.01158   0.00546  -0.0198   1.0000   0.0979
  -7.000  -0.7235   0.01128   0.00517  -0.0192   1.0000   0.1080
  -6.750  -0.6988   0.01096   0.00489  -0.0185   1.0000   0.1173
  -6.500  -0.6739   0.01069   0.00464  -0.0178   1.0000   0.1263
  -6.000  -0.6239   0.01021   0.00423  -0.0165   1.0000   0.1452
  -5.750  -0.5989   0.01000   0.00404  -0.0158   1.0000   0.1537
  -5.500  -0.5739   0.00984   0.00389  -0.0150   1.0000   0.1625
  -5.250  -0.5493   0.00963   0.00373  -0.0143   1.0000   0.1711
  -5.000  -0.5244   0.00951   0.00359  -0.0135   1.0000   0.1789
  -4.750  -0.5002   0.00933   0.00347  -0.0127   1.0000   0.1883
  -4.500  -0.4761   0.00921   0.00336  -0.0118   1.0000   0.1965
  -4.250  -0.4518   0.00907   0.00327  -0.0110   0.9998   0.2044
  -4.000  -0.4101   0.00894   0.00316  -0.0138   0.9944   0.2137
  -3.750  -0.3684   0.00881   0.00305  -0.0165   0.9866   0.2233
  -3.500  -0.3266   0.00863   0.00291  -0.0192   0.9762   0.2321
  -3.250  -0.2856   0.00850   0.00278  -0.0217   0.9616   0.2410
  -3.000  -0.2448   0.00830   0.00263  -0.0241   0.9399   0.2511
  -2.750  -0.2084   0.00823   0.00249  -0.0254   0.9034   0.2605
  -2.500  -0.1808   0.00816   0.00235  -0.0248   0.8600   0.2692
  -2.250  -0.1547   0.00820   0.00224  -0.0240   0.8230   0.2768
  -2.000  -0.1287   0.00815   0.00213  -0.0233   0.7934   0.2862
  -1.750  -0.1021   0.00814   0.00204  -0.0227   0.7670   0.2958
  -1.500  -0.0755   0.00810   0.00196  -0.0221   0.7403   0.3077
  -1.250  -0.0489   0.00806   0.00189  -0.0216   0.7163   0.3224
  -1.000  -0.0221   0.00799   0.00182  -0.0211   0.6921   0.3413
  -0.750   0.0045   0.00792   0.00177  -0.0206   0.6674   0.3669
  -0.500   0.0310   0.00781   0.00173  -0.0201   0.6435   0.4031
  -0.250   0.0574   0.00768   0.00171  -0.0197   0.6201   0.4530
   0.000   0.0836   0.00758   0.00171  -0.0191   0.5960   0.5056
   0.250   0.1100   0.00752   0.00172  -0.0186   0.5691   0.5508
   0.500   0.1363   0.00750   0.00174  -0.0180   0.5407   0.5903
   0.750   0.1625   0.00752   0.00177  -0.0174   0.5113   0.6286
   1.000   0.1887   0.00755   0.00182  -0.0168   0.4796   0.6642
   1.250   0.2147   0.00763   0.00187  -0.0162   0.4440   0.6962
   1.500   0.2404   0.00775   0.00193  -0.0155   0.4006   0.7273
   1.750   0.2655   0.00794   0.00202  -0.0148   0.3482   0.7594
   2.000   0.2901   0.00813   0.00214  -0.0139   0.3035   0.7950
   2.250   0.3145   0.00828   0.00228  -0.0129   0.2762   0.8342
   2.500   0.3392   0.00837   0.00241  -0.0118   0.2584   0.8769
   2.750   0.3678   0.00849   0.00256  -0.0116   0.2440   0.9252
   3.000   0.4140   0.00868   0.00271  -0.0152   0.2299   0.9693
   3.250   0.4570   0.00886   0.00285  -0.0183   0.2190   1.0000
   3.500   0.4820   0.00911   0.00301  -0.0177   0.2106   1.0000
   3.750   0.5083   0.00925   0.00314  -0.0172   0.2040   1.0000
   4.000   0.5340   0.00948   0.00330  -0.0166   0.1970   1.0000
   4.250   0.5604   0.00965   0.00346  -0.0161   0.1909   1.0000
   4.500   0.5868   0.00983   0.00362  -0.0157   0.1851   1.0000
   4.750   0.6125   0.01013   0.00385  -0.0151   0.1787   1.0000
   5.000   0.6396   0.01024   0.00399  -0.0148   0.1741   1.0000
   5.250   0.6661   0.01044   0.00417  -0.0144   0.1693   1.0000
   5.500   0.6919   0.01075   0.00442  -0.0139   0.1641   1.0000
   5.750   0.7187   0.01093   0.00463  -0.0135   0.1606   1.0000
   6.000   0.7455   0.01110   0.00483  -0.0131   0.1562   1.0000
   6.250   0.7716   0.01136   0.00504  -0.0127   0.1510   1.0000
   6.500   0.7980   0.01158   0.00528  -0.0123   0.1461   1.0000
   6.750   0.8248   0.01175   0.00547  -0.0119   0.1414   1.0000
   7.000   0.8508   0.01202   0.00571  -0.0115   0.1362   1.0000
   7.250   0.8772   0.01225   0.00597  -0.0111   0.1316   1.0000
   7.500   0.9037   0.01243   0.00617  -0.0107   0.1259   1.0000
   7.750   0.9294   0.01274   0.00645  -0.0103   0.1198   1.0000
   8.000   0.9559   0.01293   0.00667  -0.0099   0.1137   1.0000
   8.250   0.9812   0.01326   0.00698  -0.0094   0.1072   1.0000
   8.500   1.0071   0.01352   0.00726  -0.0090   0.1003   1.0000
   8.750   1.0322   0.01388   0.00760  -0.0085   0.0934   1.0000
   9.000   1.0569   0.01429   0.00798  -0.0080   0.0863   1.0000
   9.250   1.0816   0.01466   0.00838  -0.0074   0.0808   1.0000
   9.500   1.1054   0.01515   0.00884  -0.0068   0.0756   1.0000
   9.750   1.1298   0.01555   0.00929  -0.0062   0.0717   1.0000
  10.000   1.1532   0.01605   0.00978  -0.0056   0.0672   1.0000
  10.250   1.1769   0.01650   0.01027  -0.0050   0.0630   1.0000
  10.500   1.1995   0.01706   0.01082  -0.0043   0.0585   1.0000
  10.750   1.2225   0.01755   0.01137  -0.0036   0.0543   1.0000
  11.000   1.2435   0.01824   0.01205  -0.0028   0.0492   1.0000
  11.250   1.2645   0.01892   0.01274  -0.0019   0.0429   1.0000
  11.500   1.2850   0.01963   0.01346  -0.0010   0.0362   1.0000
  11.750   1.3042   0.02042   0.01426   0.0000   0.0306   1.0000
  12.250   1.3386   0.02223   0.01613   0.0025   0.0254   1.0000
  12.500   1.3534   0.02324   0.01720   0.0039   0.0241   1.0000
  12.750   1.3643   0.02447   0.01848   0.0057   0.0231   1.0000
  13.000   1.3757   0.02553   0.01965   0.0074   0.0224   1.0000
  13.250   1.3815   0.02666   0.02088   0.0099   0.0219   1.0000
  13.500   1.3840   0.02792   0.02224   0.0125   0.0215   1.0000
  13.750   1.3832   0.02951   0.02394   0.0147   0.0210   1.0000
  14.000   1.3799   0.03153   0.02606   0.0162   0.0207   1.0000
  14.250   1.3738   0.03416   0.02880   0.0168   0.0204   1.0000
  14.500   1.3667   0.03735   0.03210   0.0164   0.0202   1.0000
  14.750   1.3560   0.04144   0.03632   0.0149   0.0200   1.0000
  15.000   1.3397   0.04675   0.04177   0.0123   0.0197   1.0000
  15.250   1.3222   0.05270   0.04785   0.0091   0.0196   1.0000
  15.500   1.3065   0.05866   0.05396   0.0058   0.0196   1.0000
  15.750   1.2885   0.06515   0.06057   0.0023   0.0195   1.0000
  16.000   1.2714   0.07170   0.06727  -0.0013   0.0195   1.0000
  16.250   1.2521   0.07869   0.07438  -0.0051   0.0194   1.0000
  16.500   1.2348   0.08542   0.08124  -0.0088   0.0194   1.0000
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