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EPPLER 428 AIRFOIL (e428-il) Xfoil prediction polar at RE=200,000 Ncrit=9


Details Polar file
Airfoil: EPPLER 428 AIRFOIL (e428-il)
Reynolds number: 200,000
Max Cl/Cd: 47.95 at α=9.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e428-il-200000.txt
Download as CSV file: xf-e428-il-200000.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 =     0.200 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -15.000  -0.9892   0.08577   0.08097  -0.0169   1.0000   0.0268
 -14.750  -1.0061   0.07895   0.07400  -0.0213   1.0000   0.0267
 -14.500  -1.0205   0.07279   0.06768  -0.0252   1.0000   0.0266
 -14.250  -1.0364   0.06654   0.06123  -0.0295   1.0000   0.0267
 -14.000  -1.0438   0.06189   0.05645  -0.0320   1.0000   0.0266
 -13.750  -1.0539   0.05698   0.05136  -0.0350   1.0000   0.0267
 -13.500  -1.0605   0.05276   0.04697  -0.0372   1.0000   0.0267
 -13.250  -1.0652   0.04900   0.04304  -0.0390   1.0000   0.0268
 -13.000  -1.0658   0.04583   0.03980  -0.0396   1.0000   0.0271
 -12.750  -1.0652   0.04299   0.03687  -0.0401   1.0000   0.0272
 -12.500  -1.0649   0.04034   0.03418  -0.0404   1.0000   0.0276
 -12.250  -1.0645   0.03792   0.03167  -0.0403   1.0000   0.0278
 -12.000  -1.0647   0.03582   0.02950  -0.0396   1.0000   0.0283
 -11.750  -1.0637   0.03403   0.02763  -0.0380   1.0000   0.0287
 -11.500  -1.0584   0.03236   0.02587  -0.0365   1.0000   0.0292
 -11.250  -1.0497   0.03075   0.02416  -0.0352   1.0000   0.0299
 -11.000  -1.0387   0.02924   0.02250  -0.0340   1.0000   0.0307
 -10.750  -1.0270   0.02770   0.02088  -0.0327   1.0000   0.0316
 -10.500  -1.0137   0.02629   0.01944  -0.0316   1.0000   0.0330
 -10.250  -0.9971   0.02511   0.01819  -0.0307   1.0000   0.0351
 -10.000  -0.9806   0.02383   0.01685  -0.0297   1.0000   0.0376
  -9.750  -0.9619   0.02274   0.01569  -0.0288   1.0000   0.0415
  -9.500  -0.9436   0.02148   0.01438  -0.0279   1.0000   0.0490
  -9.250  -0.9262   0.01998   0.01293  -0.0269   1.0000   0.0657
  -9.000  -0.9045   0.01921   0.01222  -0.0264   1.0000   0.0819
  -8.750  -0.8804   0.01880   0.01175  -0.0259   1.0000   0.0924
  -8.500  -0.8563   0.01839   0.01128  -0.0253   1.0000   0.1009
  -8.250  -0.8316   0.01810   0.01086  -0.0248   1.0000   0.1100
  -8.000  -0.8077   0.01770   0.01046  -0.0243   1.0000   0.1182
  -7.750  -0.7837   0.01722   0.00997  -0.0237   1.0000   0.1263
  -7.500  -0.7589   0.01688   0.00951  -0.0231   1.0000   0.1350
  -7.250  -0.7350   0.01644   0.00913  -0.0225   1.0000   0.1436
  -7.000  -0.7105   0.01610   0.00877  -0.0218   1.0000   0.1534
  -6.750  -0.6854   0.01594   0.00849  -0.0212   1.0000   0.1641
  -6.500  -0.6610   0.01571   0.00832  -0.0206   1.0000   0.1742
  -6.250  -0.6364   0.01543   0.00803  -0.0199   1.0000   0.1835
  -6.000  -0.6115   0.01526   0.00776  -0.0192   1.0000   0.1928
  -5.750  -0.5872   0.01488   0.00745  -0.0185   1.0000   0.2006
  -5.500  -0.5623   0.01469   0.00714  -0.0177   1.0000   0.2093
  -5.250  -0.5382   0.01430   0.00686  -0.0169   1.0000   0.2171
  -5.000  -0.5135   0.01412   0.00656  -0.0162   1.0000   0.2258
  -4.750  -0.4896   0.01372   0.00627  -0.0154   1.0000   0.2334
  -4.500  -0.4652   0.01356   0.00602  -0.0146   1.0000   0.2425
  -4.250  -0.4417   0.01321   0.00579  -0.0137   1.0000   0.2513
  -4.000  -0.4182   0.01300   0.00555  -0.0128   1.0000   0.2610
  -3.750  -0.3954   0.01275   0.00538  -0.0119   1.0000   0.2704
  -3.500  -0.3732   0.01251   0.00517  -0.0108   1.0000   0.2798
  -3.250  -0.3520   0.01232   0.00503  -0.0097   1.0000   0.2891
  -3.000  -0.3321   0.01211   0.00488  -0.0084   1.0000   0.2973
  -2.750  -0.2969   0.01197   0.00477  -0.0102   0.9946   0.3086
  -2.500  -0.2469   0.01168   0.00459  -0.0147   0.9833   0.3228
  -2.250  -0.1971   0.01135   0.00438  -0.0189   0.9700   0.3395
  -2.000  -0.1510   0.01101   0.00415  -0.0223   0.9530   0.3579
  -1.750  -0.1092   0.01067   0.00393  -0.0246   0.9293   0.3789
  -1.500  -0.0710   0.01033   0.00375  -0.0262   0.9031   0.4062
  -1.250  -0.0394   0.01006   0.00362  -0.0263   0.8741   0.4426
  -1.000  -0.0129   0.00983   0.00356  -0.0254   0.8446   0.4896
  -0.750   0.0117   0.00966   0.00353  -0.0241   0.8167   0.5448
  -0.500   0.0357   0.00955   0.00354  -0.0227   0.7895   0.5986
  -0.250   0.0595   0.00948   0.00357  -0.0212   0.7632   0.6473
   0.000   0.0834   0.00944   0.00358  -0.0197   0.7375   0.6908
   0.250   0.1074   0.00940   0.00360  -0.0182   0.7121   0.7301
   0.500   0.1311   0.00938   0.00361  -0.0166   0.6860   0.7683
   0.750   0.1546   0.00937   0.00363  -0.0149   0.6595   0.8072
   1.000   0.1782   0.00936   0.00364  -0.0132   0.6325   0.8466
   1.250   0.2047   0.00937   0.00364  -0.0121   0.6026   0.8879
   1.500   0.2397   0.00945   0.00363  -0.0128   0.5655   0.9284
   1.750   0.2843   0.00962   0.00361  -0.0157   0.5153   0.9627
   2.000   0.3302   0.00991   0.00359  -0.0193   0.4505   0.9914
   2.250   0.3577   0.01030   0.00363  -0.0195   0.3905   1.0000
   2.500   0.3789   0.01070   0.00374  -0.0183   0.3465   1.0000
   2.750   0.4016   0.01109   0.00391  -0.0174   0.3174   1.0000
   3.000   0.4253   0.01149   0.00412  -0.0166   0.2976   1.0000
   3.250   0.4498   0.01187   0.00437  -0.0159   0.2828   1.0000
   3.500   0.4747   0.01227   0.00466  -0.0153   0.2707   1.0000
   3.750   0.4994   0.01273   0.00496  -0.0146   0.2603   1.0000
   4.000   0.5253   0.01304   0.00527  -0.0141   0.2508   1.0000
   4.250   0.5507   0.01356   0.00566  -0.0136   0.2432   1.0000
   4.500   0.5768   0.01388   0.00601  -0.0131   0.2358   1.0000
   4.750   0.6024   0.01439   0.00640  -0.0126   0.2286   1.0000
   5.000   0.6286   0.01472   0.00678  -0.0122   0.2215   1.0000
   5.250   0.6544   0.01507   0.00709  -0.0117   0.2142   1.0000
   5.500   0.6802   0.01549   0.00751  -0.0112   0.2070   1.0000
   5.750   0.7062   0.01580   0.00784  -0.0108   0.2003   1.0000
   6.000   0.7318   0.01646   0.00838  -0.0104   0.1948   1.0000
   6.250   0.7578   0.01673   0.00880  -0.0099   0.1893   1.0000
   6.500   0.7835   0.01708   0.00917  -0.0094   0.1835   1.0000
   6.750   0.8089   0.01771   0.00973  -0.0090   0.1780   1.0000
   7.000   0.8344   0.01800   0.01018  -0.0084   0.1719   1.0000
   7.250   0.8597   0.01838   0.01054  -0.0080   0.1662   1.0000
   7.500   0.8846   0.01899   0.01120  -0.0074   0.1605   1.0000
   7.750   0.9094   0.01929   0.01159  -0.0069   0.1538   1.0000
   8.000   0.9337   0.01987   0.01211  -0.0064   0.1475   1.0000
   8.250   0.9579   0.02013   0.01253  -0.0057   0.1403   1.0000
   8.500   0.9817   0.02071   0.01300  -0.0051   0.1341   1.0000
   8.750   1.0054   0.02099   0.01349  -0.0044   0.1273   1.0000
   9.000   1.0287   0.02146   0.01387  -0.0038   0.1216   1.0000
   9.250   1.0516   0.02202   0.01462  -0.0031   0.1159   1.0000
   9.500   1.0745   0.02241   0.01504  -0.0024   0.1108   1.0000
   9.750   1.0965   0.02311   0.01578  -0.0016   0.1060   1.0000
  10.000   1.1186   0.02360   0.01642  -0.0008   0.1012   1.0000
  10.250   1.1398   0.02415   0.01690  -0.0001   0.0968   1.0000
  10.500   1.1606   0.02476   0.01771   0.0008   0.0921   1.0000
  10.750   1.1810   0.02521   0.01822   0.0017   0.0875   1.0000
  11.000   1.1997   0.02597   0.01908   0.0027   0.0829   1.0000
  11.250   1.2181   0.02650   0.01971   0.0037   0.0775   1.0000
  11.500   1.2338   0.02741   0.02071   0.0049   0.0718   1.0000
  11.750   1.2459   0.02846   0.02170   0.0064   0.0658   1.0000
  12.000   1.2565   0.02961   0.02302   0.0080   0.0591   1.0000
  12.250   1.2603   0.03124   0.02474   0.0102   0.0541   1.0000
  12.500   1.2612   0.03276   0.02628   0.0126   0.0508   1.0000
  12.750   1.2594   0.03477   0.02837   0.0146   0.0482   1.0000
  13.000   1.2590   0.03676   0.03051   0.0160   0.0459   1.0000
  13.250   1.2578   0.03898   0.03279   0.0167   0.0442   1.0000
  13.500   1.2560   0.04158   0.03538   0.0170   0.0430   1.0000
  13.750   1.2522   0.04463   0.03859   0.0169   0.0419   1.0000
  14.000   1.2474   0.04800   0.04216   0.0160   0.0408   1.0000
  14.250   1.2420   0.05163   0.04596   0.0148   0.0399   1.0000
  14.500   1.2369   0.05541   0.04988   0.0133   0.0391   1.0000
  14.750   1.2313   0.05940   0.05397   0.0115   0.0384   1.0000
  15.000   1.2262   0.06343   0.05806   0.0097   0.0377   1.0000
  15.250   1.2241   0.06699   0.06161   0.0085   0.0369   1.0000
  15.500   1.2146   0.07194   0.06668   0.0060   0.0364   1.0000
  15.750   1.1988   0.07819   0.07314   0.0022   0.0362   1.0000
  16.000   1.1811   0.08503   0.08018  -0.0020   0.0359   1.0000
  16.250   1.1601   0.09283   0.08819  -0.0069   0.0358   1.0000
  16.500   1.1367   0.10157   0.09713  -0.0125   0.0358   1.0000
  16.750   1.1064   0.11217   0.10794  -0.0194   0.0359   1.0000
  17.000   1.0692   0.12488   0.12083  -0.0276   0.0362   1.0000
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