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EPPLER 428 AIRFOIL (e428-il) Xfoil prediction polar at RE=1,000,000 Ncrit=9


Details Polar file
Airfoil: EPPLER 428 AIRFOIL (e428-il)
Reynolds number: 1,000,000
Max Cl/Cd: 91.09 at α=8°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e428-il-1000000.txt
Download as CSV file: xf-e428-il-1000000.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 =     1.000 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -16.000  -1.0739   0.08662   0.08323  -0.0089   1.0000   0.0093
 -15.750  -1.0871   0.08097   0.07752  -0.0119   1.0000   0.0094
 -15.500  -1.1015   0.07526   0.07173  -0.0149   1.0000   0.0094
 -15.250  -1.1166   0.06948   0.06586  -0.0180   1.0000   0.0093
 -15.000  -1.1316   0.06358   0.05987  -0.0213   1.0000   0.0093
 -14.750  -1.1480   0.05744   0.05363  -0.0248   1.0000   0.0093
 -14.500  -1.1629   0.05136   0.04744  -0.0284   1.0000   0.0093
 -14.250  -1.1790   0.04498   0.04092  -0.0327   1.0000   0.0093
 -14.000  -1.1861   0.03998   0.03580  -0.0362   1.0000   0.0093
 -13.750  -1.1948   0.03521   0.03090  -0.0396   1.0000   0.0094
 -13.500  -1.2015   0.03157   0.02714  -0.0416   1.0000   0.0094
 -13.250  -1.2085   0.02897   0.02442  -0.0415   1.0000   0.0094
 -13.000  -1.2138   0.02727   0.02263  -0.0392   1.0000   0.0095
 -12.750  -1.2098   0.02593   0.02121  -0.0372   1.0000   0.0096
 -12.500  -1.2005   0.02464   0.01983  -0.0357   1.0000   0.0097
 -12.250  -1.1876   0.02351   0.01863  -0.0345   1.0000   0.0098
 -12.000  -1.1728   0.02244   0.01748  -0.0334   1.0000   0.0100
 -11.750  -1.1563   0.02145   0.01642  -0.0324   1.0000   0.0101
 -11.500  -1.1382   0.02055   0.01544  -0.0314   1.0000   0.0102
 -11.250  -1.1192   0.01969   0.01451  -0.0305   1.0000   0.0104
 -11.000  -1.0991   0.01889   0.01364  -0.0297   1.0000   0.0106
 -10.750  -1.0781   0.01815   0.01283  -0.0289   1.0000   0.0107
 -10.500  -1.0563   0.01748   0.01211  -0.0282   1.0000   0.0109
 -10.250  -1.0340   0.01685   0.01141  -0.0275   1.0000   0.0111
 -10.000  -1.0139   0.01586   0.01033  -0.0266   1.0000   0.0115
  -9.750  -0.9916   0.01515   0.00957  -0.0258   1.0000   0.0118
  -9.500  -0.9684   0.01456   0.00892  -0.0251   1.0000   0.0121
  -9.250  -0.9447   0.01403   0.00835  -0.0245   1.0000   0.0125
  -9.000  -0.9206   0.01355   0.00782  -0.0238   1.0000   0.0129
  -8.750  -0.8963   0.01311   0.00734  -0.0231   1.0000   0.0133
  -8.500  -0.8719   0.01268   0.00687  -0.0225   1.0000   0.0137
  -8.250  -0.8479   0.01219   0.00634  -0.0217   1.0000   0.0146
  -8.000  -0.8235   0.01177   0.00590  -0.0210   1.0000   0.0157
  -7.750  -0.7994   0.01131   0.00544  -0.0202   1.0000   0.0186
  -7.500  -0.7782   0.01042   0.00476  -0.0192   1.0000   0.0466
  -7.250  -0.7537   0.01005   0.00444  -0.0185   1.0000   0.0566
  -7.000  -0.7293   0.00969   0.00412  -0.0178   1.0000   0.0652
  -6.750  -0.7051   0.00930   0.00382  -0.0170   1.0000   0.0772
  -6.500  -0.6809   0.00895   0.00357  -0.0162   1.0000   0.0924
  -6.250  -0.6562   0.00869   0.00337  -0.0155   1.0000   0.1036
  -6.000  -0.6314   0.00847   0.00318  -0.0147   1.0000   0.1127
  -5.750  -0.6068   0.00827   0.00301  -0.0140   1.0000   0.1206
  -5.500  -0.5823   0.00807   0.00285  -0.0131   1.0000   0.1287
  -5.250  -0.5497   0.00789   0.00271  -0.0140   0.9984   0.1377
  -5.000  -0.5118   0.00770   0.00258  -0.0161   0.9947   0.1501
  -4.750  -0.4755   0.00751   0.00245  -0.0177   0.9897   0.1615
  -4.500  -0.4356   0.00734   0.00233  -0.0201   0.9834   0.1714
  -4.250  -0.3970   0.00720   0.00221  -0.0221   0.9714   0.1805
  -4.000  -0.3578   0.00705   0.00210  -0.0243   0.9495   0.1918
  -3.750  -0.3243   0.00698   0.00196  -0.0250   0.9049   0.2000
  -3.500  -0.2985   0.00703   0.00187  -0.0242   0.8567   0.2074
  -3.250  -0.2727   0.00707   0.00177  -0.0234   0.8168   0.2139
  -3.000  -0.2463   0.00709   0.00169  -0.0227   0.7820   0.2207
  -2.500  -0.1919   0.00710   0.00155  -0.0219   0.7271   0.2340
  -2.250  -0.1645   0.00711   0.00149  -0.0215   0.7020   0.2412
  -2.000  -0.1369   0.00709   0.00142  -0.0212   0.6795   0.2502
  -1.750  -0.1092   0.00709   0.00137  -0.0209   0.6569   0.2574
  -1.500  -0.0816   0.00709   0.00131  -0.0206   0.6329   0.2653
  -1.250  -0.0538   0.00709   0.00127  -0.0203   0.6104   0.2738
  -1.000  -0.0261   0.00708   0.00123  -0.0201   0.5883   0.2837
  -0.750   0.0017   0.00709   0.00119  -0.0198   0.5646   0.2948
  -0.500   0.0293   0.00709   0.00116  -0.0195   0.5383   0.3093
   0.000   0.0841   0.00705   0.00113  -0.0190   0.4847   0.3575
   0.250   0.1111   0.00701   0.00113  -0.0187   0.4572   0.3970
   0.500   0.1380   0.00698   0.00114  -0.0184   0.4268   0.4424
   0.750   0.1648   0.00699   0.00118  -0.0180   0.3903   0.4876
   1.000   0.1913   0.00709   0.00123  -0.0177   0.3438   0.5276
   1.250   0.2178   0.00723   0.00130  -0.0173   0.2991   0.5625
   1.500   0.2446   0.00732   0.00139  -0.0169   0.2706   0.5977
   1.750   0.2717   0.00739   0.00147  -0.0166   0.2519   0.6305
   2.000   0.2989   0.00744   0.00156  -0.0162   0.2381   0.6600
   2.250   0.3261   0.00750   0.00165  -0.0159   0.2258   0.6886
   2.500   0.3532   0.00755   0.00174  -0.0155   0.2155   0.7172
   2.750   0.3802   0.00757   0.00184  -0.0150   0.2066   0.7485
   3.000   0.4067   0.00761   0.00194  -0.0145   0.1978   0.7828
   3.250   0.4330   0.00761   0.00205  -0.0139   0.1917   0.8202
   3.500   0.4586   0.00761   0.00215  -0.0131   0.1852   0.8608
   3.750   0.4836   0.00760   0.00227  -0.0121   0.1777   0.9135
   4.000   0.5268   0.00765   0.00238  -0.0151   0.1714   0.9695
   4.250   0.5678   0.00785   0.00252  -0.0178   0.1641   1.0000
   4.500   0.5946   0.00796   0.00263  -0.0173   0.1607   1.0000
   4.750   0.6213   0.00810   0.00274  -0.0169   0.1560   1.0000
   5.000   0.6478   0.00828   0.00289  -0.0165   0.1511   1.0000
   5.250   0.6746   0.00843   0.00303  -0.0161   0.1471   1.0000
   5.500   0.7017   0.00856   0.00316  -0.0157   0.1430   1.0000
   5.750   0.7284   0.00874   0.00330  -0.0153   0.1380   1.0000
   6.000   0.7551   0.00893   0.00348  -0.0149   0.1336   1.0000
   6.250   0.7822   0.00906   0.00362  -0.0146   0.1300   1.0000
   6.500   0.8090   0.00925   0.00378  -0.0142   0.1250   1.0000
   6.750   0.8356   0.00946   0.00397  -0.0138   0.1200   1.0000
   7.000   0.8625   0.00962   0.00413  -0.0135   0.1157   1.0000
   7.250   0.8888   0.00986   0.00433  -0.0130   0.1091   1.0000
   7.500   0.9155   0.01006   0.00453  -0.0127   0.1036   1.0000
   7.750   0.9415   0.01034   0.00476  -0.0123   0.0957   1.0000
   8.000   0.9674   0.01062   0.00501  -0.0118   0.0877   1.0000
   8.250   0.9931   0.01094   0.00529  -0.0114   0.0795   1.0000
   8.500   1.0184   0.01130   0.00561  -0.0109   0.0720   1.0000
   8.750   1.0434   0.01169   0.00596  -0.0103   0.0655   1.0000
   9.000   1.0686   0.01204   0.00630  -0.0099   0.0610   1.0000
   9.250   1.0935   0.01243   0.00668  -0.0093   0.0568   1.0000
   9.500   1.1187   0.01277   0.00702  -0.0088   0.0537   1.0000
   9.750   1.1430   0.01321   0.00745  -0.0082   0.0499   1.0000
  10.000   1.1680   0.01353   0.00779  -0.0077   0.0468   1.0000
  10.250   1.1918   0.01400   0.00825  -0.0071   0.0422   1.0000
  10.500   1.2155   0.01448   0.00870  -0.0065   0.0353   1.0000
  10.750   1.2361   0.01530   0.00941  -0.0055   0.0234   1.0000
  11.000   1.2577   0.01598   0.01009  -0.0047   0.0208   1.0000
  11.250   1.2793   0.01664   0.01078  -0.0038   0.0193   1.0000
  11.500   1.3011   0.01722   0.01142  -0.0030   0.0185   1.0000
  11.750   1.3219   0.01789   0.01215  -0.0020   0.0178   1.0000
  12.000   1.3411   0.01868   0.01299  -0.0010   0.0171   1.0000
  12.250   1.3583   0.01963   0.01401   0.0003   0.0165   1.0000
  12.500   1.3776   0.02030   0.01475   0.0014   0.0162   1.0000
  12.750   1.3957   0.02102   0.01555   0.0026   0.0158   1.0000
  13.000   1.4124   0.02180   0.01640   0.0039   0.0154   1.0000
  13.250   1.4271   0.02268   0.01734   0.0054   0.0150   1.0000
  13.500   1.4396   0.02362   0.01836   0.0071   0.0147   1.0000
  13.750   1.4466   0.02468   0.01950   0.0095   0.0144   1.0000
  14.000   1.4461   0.02594   0.02084   0.0127   0.0142   1.0000
  14.250   1.4428   0.02751   0.02251   0.0155   0.0140   1.0000
  14.500   1.4365   0.02956   0.02468   0.0174   0.0138   1.0000
  14.750   1.4272   0.03233   0.02758   0.0183   0.0137   1.0000
  15.000   1.4194   0.03554   0.03092   0.0179   0.0136   1.0000
  15.250   1.4168   0.03864   0.03412   0.0170   0.0135   1.0000
  15.500   1.4093   0.04270   0.03831   0.0152   0.0134   1.0000
  15.750   1.3969   0.04780   0.04355   0.0125   0.0134   1.0000
  16.000   1.3808   0.05380   0.04969   0.0092   0.0133   1.0000
  16.250   1.3566   0.06134   0.05739   0.0049   0.0133   1.0000
  16.500   1.3294   0.06960   0.06581   0.0002   0.0133   1.0000
  16.750   1.2954   0.07912   0.07549  -0.0051   0.0134   1.0000
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