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EPPLER 657 AIRFOIL (e657-il) Xfoil prediction polar at RE=1,000,000 Ncrit=9


Details Polar file
Airfoil: EPPLER 657 AIRFOIL (e657-il)
Reynolds number: 1,000,000
Max Cl/Cd: 160.62 at α=5.25°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e657-il-1000000.txt
Download as CSV file: xf-e657-il-1000000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER 657 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 =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -12.000  -0.0376   0.09023   0.08744  -0.1102   0.7604   0.0130
 -11.750  -0.0391   0.08512   0.08233  -0.1121   0.7590   0.0131
 -10.000  -0.3588   0.02902   0.02496  -0.1385   0.7526   0.0083
  -9.750  -0.3521   0.02785   0.02362  -0.1366   0.7509   0.0082
  -9.500  -0.3448   0.02589   0.02158  -0.1349   0.7493   0.0078
  -9.250  -0.3389   0.02393   0.01938  -0.1330   0.7476   0.0078
  -9.000  -0.3299   0.02192   0.01709  -0.1312   0.7459   0.0077
  -8.750  -0.3138   0.02065   0.01562  -0.1301   0.7441   0.0077
  -8.500  -0.2970   0.01922   0.01398  -0.1291   0.7424   0.0077
  -8.250  -0.2765   0.01824   0.01285  -0.1284   0.7414   0.0077
  -8.000  -0.2563   0.01702   0.01149  -0.1276   0.7402   0.0077
  -7.750  -0.2345   0.01605   0.01040  -0.1270   0.7389   0.0076
  -7.500  -0.2120   0.01517   0.00941  -0.1265   0.7376   0.0076
  -7.250  -0.1886   0.01443   0.00859  -0.1261   0.7364   0.0076
  -7.000  -0.1647   0.01376   0.00784  -0.1257   0.7351   0.0076
  -6.750  -0.1404   0.01315   0.00716  -0.1253   0.7337   0.0077
  -6.500  -0.1154   0.01264   0.00658  -0.1251   0.7324   0.0077
  -6.250  -0.0900   0.01217   0.00605  -0.1249   0.7310   0.0079
  -6.000  -0.0639   0.01179   0.00561  -0.1248   0.7297   0.0080
  -5.750  -0.0384   0.01130   0.00505  -0.1247   0.7283   0.0083
  -5.500  -0.0120   0.01095   0.00466  -0.1248   0.7265   0.0089
  -5.250   0.0153   0.01067   0.00437  -0.1248   0.7256   0.0098
  -5.000   0.0424   0.01035   0.00403  -0.1249   0.7245   0.0111
  -4.750   0.0698   0.01007   0.00375  -0.1250   0.7234   0.0140
  -4.500   0.0970   0.00975   0.00348  -0.1251   0.7222   0.0246
  -4.250   0.1246   0.00949   0.00331  -0.1254   0.7209   0.0401
  -4.000   0.1525   0.00928   0.00316  -0.1256   0.7196   0.0557
  -3.750   0.1804   0.00905   0.00302  -0.1259   0.7182   0.0795
  -3.500   0.2084   0.00879   0.00289  -0.1263   0.7168   0.1135
  -3.250   0.2363   0.00850   0.00277  -0.1267   0.7155   0.1628
  -3.000   0.2642   0.00819   0.00267  -0.1271   0.7142   0.2268
  -2.750   0.2922   0.00788   0.00259  -0.1276   0.7127   0.2995
  -2.500   0.3208   0.00766   0.00255  -0.1281   0.7110   0.3688
  -2.250   0.3493   0.00741   0.00253  -0.1287   0.7095   0.4456
  -2.000   0.3777   0.00710   0.00247  -0.1292   0.7083   0.5305
  -1.750   0.4063   0.00682   0.00245  -0.1297   0.7068   0.6176
  -1.500   0.4350   0.00666   0.00246  -0.1300   0.7051   0.6737
  -1.250   0.4640   0.00661   0.00247  -0.1303   0.7033   0.7089
  -1.000   0.4932   0.00659   0.00246  -0.1307   0.7014   0.7302
  -0.750   0.5222   0.00656   0.00245  -0.1310   0.6995   0.7472
  -0.500   0.5510   0.00656   0.00247  -0.1313   0.6976   0.7622
  -0.250   0.5799   0.00663   0.00255  -0.1315   0.6954   0.7762
   0.000   0.6088   0.00673   0.00264  -0.1318   0.6932   0.7873
   0.250   0.6374   0.00675   0.00268  -0.1321   0.6914   0.7970
   0.500   0.6661   0.00679   0.00272  -0.1323   0.6892   0.8050
   0.750   0.6949   0.00682   0.00274  -0.1326   0.6868   0.8114
   1.000   0.7235   0.00685   0.00277  -0.1328   0.6843   0.8171
   1.250   0.7526   0.00690   0.00278  -0.1332   0.6818   0.8233
   1.500   0.7808   0.00695   0.00283  -0.1333   0.6790   0.8279
   1.750   0.8087   0.00699   0.00289  -0.1334   0.6765   0.8328
   2.000   0.8369   0.00702   0.00293  -0.1337   0.6738   0.8378
   2.250   0.8642   0.00700   0.00294  -0.1336   0.6706   0.8423
   2.500   0.8916   0.00700   0.00296  -0.1336   0.6673   0.8466
   2.750   0.9199   0.00704   0.00298  -0.1339   0.6637   0.8506
   3.000   0.9479   0.00707   0.00302  -0.1341   0.6601   0.8539
   3.250   0.9748   0.00703   0.00303  -0.1340   0.6559   0.8572
   3.500   1.0017   0.00704   0.00305  -0.1340   0.6516   0.8603
   3.750   1.0289   0.00709   0.00308  -0.1340   0.6470   0.8637
   4.000   1.0561   0.00710   0.00315  -0.1341   0.6418   0.8670
   4.250   1.0832   0.00713   0.00318  -0.1341   0.6356   0.8699
   4.500   1.1090   0.00715   0.00322  -0.1339   0.6291   0.8728
   4.750   1.1345   0.00719   0.00328  -0.1336   0.6207   0.8756
   5.000   1.1597   0.00726   0.00335  -0.1333   0.6112   0.8784
   5.250   1.1838   0.00737   0.00344  -0.1327   0.5998   0.8814
   5.500   1.2071   0.00752   0.00356  -0.1321   0.5858   0.8841
   5.750   1.2286   0.00770   0.00369  -0.1311   0.5687   0.8868
   6.000   1.2474   0.00793   0.00388  -0.1295   0.5489   0.8897
   6.250   1.2632   0.00825   0.00412  -0.1274   0.5272   0.8932
   6.500   1.2767   0.00863   0.00441  -0.1249   0.5037   0.8968
   6.750   1.2861   0.00903   0.00472  -0.1215   0.4806   0.9002
   7.000   1.2917   0.00946   0.00508  -0.1175   0.4587   0.9037
   7.250   1.2990   0.00993   0.00549  -0.1139   0.4380   0.9070
   7.500   1.3054   0.01047   0.00596  -0.1103   0.4175   0.9106
   7.750   1.3102   0.01112   0.00653  -0.1066   0.3972   0.9144
   8.000   1.3160   0.01178   0.00713  -0.1033   0.3775   0.9180
   8.250   1.3214   0.01250   0.00781  -0.1000   0.3590   0.9219
   8.500   1.3275   0.01330   0.00855  -0.0970   0.3411   0.9260
   8.750   1.3325   0.01423   0.00942  -0.0940   0.3216   0.9302
   9.000   1.3381   0.01512   0.01029  -0.0911   0.3050   0.9358
   9.250   1.3445   0.01605   0.01118  -0.0885   0.2888   0.9429
   9.500   1.3499   0.01704   0.01215  -0.0859   0.2715   0.9582
   9.750   1.3603   0.01815   0.01320  -0.0846   0.2526   1.0000
  10.000   1.3700   0.01925   0.01423  -0.0830   0.2369   1.0000
  10.250   1.3793   0.02037   0.01530  -0.0814   0.2211   1.0000
  10.500   1.3881   0.02154   0.01640  -0.0798   0.2050   1.0000
  10.750   1.3963   0.02277   0.01756  -0.0781   0.1891   1.0000
  11.000   1.4055   0.02395   0.01868  -0.0766   0.1754   1.0000
  11.250   1.4140   0.02521   0.01989  -0.0751   0.1623   1.0000
  11.500   1.4231   0.02644   0.02107  -0.0737   0.1496   1.0000
  11.750   1.4323   0.02769   0.02228  -0.0724   0.1380   1.0000
  12.000   1.4419   0.02895   0.02350  -0.0711   0.1271   1.0000
  12.250   1.4512   0.03025   0.02478  -0.0699   0.1173   1.0000
  12.500   1.4587   0.03172   0.02620  -0.0685   0.1061   1.0000
  12.750   1.4660   0.03322   0.02764  -0.0673   0.0947   1.0000
  13.000   1.4745   0.03468   0.02908  -0.0661   0.0867   1.0000
  13.250   1.4833   0.03614   0.03052  -0.0651   0.0783   1.0000
  13.500   1.4899   0.03782   0.03217  -0.0640   0.0692   1.0000
  13.750   1.4952   0.03963   0.03393  -0.0628   0.0596   1.0000
  14.000   1.5025   0.04133   0.03560  -0.0619   0.0537   1.0000
  14.250   1.5086   0.04317   0.03743  -0.0610   0.0473   1.0000
  14.500   1.5176   0.04479   0.03907  -0.0603   0.0430   1.0000
  14.750   1.5231   0.04677   0.04104  -0.0594   0.0384   1.0000
  15.000   1.5303   0.04862   0.04291  -0.0588   0.0345   1.0000
  15.250   1.5360   0.05065   0.04496  -0.0581   0.0307   1.0000
  15.500   1.5414   0.05278   0.04710  -0.0575   0.0275   1.0000
  15.750   1.5474   0.05487   0.04923  -0.0571   0.0248   1.0000
  16.000   1.5526   0.05710   0.05149  -0.0566   0.0226   1.0000
  16.250   1.5572   0.05943   0.05385  -0.0563   0.0204   1.0000
  16.500   1.5619   0.06180   0.05627  -0.0560   0.0186   1.0000
  16.750   1.5656   0.06433   0.05885  -0.0558   0.0170   1.0000
  17.000   1.5695   0.06690   0.06147  -0.0557   0.0156   1.0000
  17.250   1.5730   0.06955   0.06418  -0.0556   0.0145   1.0000
  17.500   1.5747   0.07247   0.06715  -0.0557   0.0133   1.0000
  17.750   1.5775   0.07531   0.07006  -0.0559   0.0124   1.0000
  18.000   1.5786   0.07842   0.07324  -0.0561   0.0113   1.0000
  18.250   1.5785   0.08177   0.07664  -0.0565   0.0106   1.0000
  18.500   1.5802   0.08489   0.07986  -0.0570   0.0099   1.0000
  18.750   1.5798   0.08836   0.08341  -0.0576   0.0092   1.0000
  19.000   1.5769   0.09225   0.08736  -0.0584   0.0084   1.0000
  19.250   1.5772   0.09573   0.09093  -0.0592   0.0079   1.0000
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