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BELL 540 AIRFOIL (MODIFIED NACA 0012) (b540ols-il) Xfoil prediction polar at RE=1,000,000 Ncrit=9


Details Polar file
Airfoil: BELL 540 AIRFOIL (MODIFIED NACA 0012) (b540ols-il)
Reynolds number: 1,000,000
Max Cl/Cd: 74.78 at α=8°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-b540ols-il-1000000.txt
Download as CSV file: xf-b540ols-il-1000000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: BELL 540 AIRFOIL (MODIFIED NACA 0012)           
  
 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
  ------ -------- --------- --------- -------- -------- --------
 -17.750  -1.1950   0.12715   0.12480   0.0383   1.0000   0.0151
 -17.500  -1.2232   0.11730   0.11483   0.0329   1.0000   0.0151
 -17.250  -1.2506   0.10791   0.10531   0.0277   1.0000   0.0151
 -17.000  -1.2778   0.09888   0.09616   0.0228   1.0000   0.0151
 -16.750  -1.3071   0.08994   0.08709   0.0179   1.0000   0.0150
 -16.500  -1.3364   0.08131   0.07833   0.0133   1.0000   0.0150
 -16.250  -1.3646   0.07296   0.06984   0.0087   1.0000   0.0150
 -16.000  -1.3906   0.06495   0.06170   0.0040   1.0000   0.0150
 -15.750  -1.4125   0.05743   0.05404  -0.0006   1.0000   0.0150
 -15.500  -1.4284   0.05050   0.04695  -0.0055   1.0000   0.0150
 -15.250  -1.4380   0.04429   0.04059  -0.0105   1.0000   0.0151
 -15.000  -1.4436   0.03919   0.03533  -0.0149   1.0000   0.0152
 -14.750  -1.4471   0.03554   0.03153  -0.0170   1.0000   0.0153
 -14.500  -1.4488   0.03305   0.02892  -0.0168   1.0000   0.0155
 -14.250  -1.4481   0.03130   0.02706  -0.0151   1.0000   0.0156
 -14.000  -1.4394   0.02983   0.02547  -0.0139   1.0000   0.0158
 -13.750  -1.4266   0.02855   0.02410  -0.0130   1.0000   0.0161
 -13.500  -1.4111   0.02746   0.02289  -0.0121   1.0000   0.0163
 -13.250  -1.3936   0.02649   0.02183  -0.0114   1.0000   0.0166
 -13.000  -1.3747   0.02562   0.02087  -0.0107   1.0000   0.0167
 -12.750  -1.3623   0.02387   0.01897  -0.0096   1.0000   0.0171
 -12.500  -1.3454   0.02255   0.01758  -0.0087   1.0000   0.0175
 -12.250  -1.3250   0.02165   0.01661  -0.0081   1.0000   0.0179
 -12.000  -1.3030   0.02089   0.01581  -0.0076   1.0000   0.0183
 -11.750  -1.2804   0.02019   0.01504  -0.0071   1.0000   0.0187
 -11.500  -1.2573   0.01952   0.01431  -0.0066   1.0000   0.0191
 -11.250  -1.2337   0.01888   0.01360  -0.0062   1.0000   0.0195
 -11.000  -1.2095   0.01830   0.01295  -0.0058   1.0000   0.0199
 -10.750  -1.1845   0.01782   0.01240  -0.0055   1.0000   0.0202
 -10.500  -1.1628   0.01672   0.01123  -0.0049   1.0000   0.0212
 -10.250  -1.1378   0.01616   0.01065  -0.0046   1.0000   0.0219
 -10.000  -1.1123   0.01568   0.01014  -0.0043   1.0000   0.0227
  -9.750  -1.0865   0.01523   0.00963  -0.0040   1.0000   0.0234
  -9.500  -1.0602   0.01483   0.00918  -0.0038   1.0000   0.0240
  -9.250  -1.0351   0.01416   0.00846  -0.0035   1.0000   0.0251
  -9.000  -1.0090   0.01365   0.00794  -0.0032   1.0000   0.0262
  -8.750  -0.9823   0.01327   0.00754  -0.0031   1.0000   0.0274
  -8.500  -0.9553   0.01294   0.00717  -0.0029   1.0000   0.0284
  -8.250  -0.9288   0.01246   0.00665  -0.0027   1.0000   0.0300
  -8.000  -0.9019   0.01206   0.00627  -0.0025   1.0000   0.0318
  -7.750  -0.8744   0.01177   0.00596  -0.0024   1.0000   0.0334
  -7.500  -0.8472   0.01139   0.00555  -0.0022   1.0000   0.0354
  -7.250  -0.8198   0.01103   0.00520  -0.0021   1.0000   0.0379
  -7.000  -0.7920   0.01077   0.00493  -0.0020   1.0000   0.0400
  -6.750  -0.7645   0.01040   0.00457  -0.0019   1.0000   0.0434
  -6.500  -0.7366   0.01014   0.00431  -0.0018   1.0000   0.0467
  -6.250  -0.7088   0.00982   0.00401  -0.0017   1.0000   0.0511
  -6.000  -0.6808   0.00957   0.00377  -0.0016   1.0000   0.0553
  -5.750  -0.6528   0.00926   0.00351  -0.0016   1.0000   0.0619
  -5.500  -0.6247   0.00900   0.00328  -0.0015   1.0000   0.0691
  -5.250  -0.5965   0.00875   0.00307  -0.0014   1.0000   0.0771
  -5.000  -0.5684   0.00849   0.00286  -0.0014   1.0000   0.0879
  -4.750  -0.5402   0.00822   0.00267  -0.0014   1.0000   0.1012
  -4.500  -0.5120   0.00795   0.00248  -0.0013   1.0000   0.1168
  -4.250  -0.4837   0.00768   0.00232  -0.0013   1.0000   0.1350
  -4.000  -0.4554   0.00744   0.00217  -0.0013   1.0000   0.1537
  -3.750  -0.4271   0.00721   0.00202  -0.0013   1.0000   0.1741
  -3.500  -0.3988   0.00698   0.00190  -0.0012   1.0000   0.1961
  -3.250  -0.3704   0.00678   0.00179  -0.0012   1.0000   0.2185
  -3.000  -0.3421   0.00657   0.00169  -0.0012   1.0000   0.2419
  -2.750  -0.3137   0.00640   0.00161  -0.0011   1.0000   0.2643
  -2.500  -0.2844   0.00622   0.00155  -0.0013   0.9968   0.2876
  -2.250  -0.2466   0.00612   0.00152  -0.0032   0.9548   0.3124
  -2.000  -0.2231   0.00617   0.00148  -0.0017   0.8818   0.3325
  -1.750  -0.1985   0.00632   0.00142  -0.0006   0.7986   0.3522
  -1.500  -0.1716   0.00651   0.00136  -0.0001   0.7127   0.3712
  -1.250  -0.1436   0.00667   0.00133   0.0000   0.6397   0.3884
  -1.000  -0.1151   0.00678   0.00129   0.0000   0.5848   0.4032
  -0.750  -0.0864   0.00685   0.00127   0.0000   0.5445   0.4189
  -0.500  -0.0576   0.00689   0.00126   0.0000   0.5137   0.4351
  -0.250  -0.0288   0.00692   0.00125   0.0000   0.4890   0.4511
   0.000   0.0001   0.00693   0.00125   0.0000   0.4681   0.4680
   0.250   0.0289   0.00692   0.00125   0.0000   0.4510   0.4892
   0.500   0.0577   0.00689   0.00126   0.0000   0.4352   0.5137
   0.750   0.0865   0.00685   0.00127  -0.0001   0.4188   0.5445
   1.000   0.1152   0.00678   0.00129  -0.0001   0.4031   0.5848
   1.250   0.1437   0.00667   0.00133   0.0000   0.3884   0.6396
   1.500   0.1717   0.00651   0.00136   0.0001   0.3712   0.7130
   1.750   0.1986   0.00632   0.00142   0.0005   0.3522   0.7987
   2.000   0.2232   0.00617   0.00148   0.0017   0.3327   0.8822
   2.250   0.2467   0.00612   0.00151   0.0032   0.3125   0.9550
   2.500   0.2844   0.00622   0.00155   0.0013   0.2876   0.9967
   3.000   0.3422   0.00657   0.00169   0.0012   0.2421   1.0000
   3.250   0.3705   0.00678   0.00179   0.0012   0.2184   1.0000
   3.500   0.3989   0.00698   0.00190   0.0012   0.1961   1.0000
   3.750   0.4272   0.00722   0.00203   0.0012   0.1739   1.0000
   4.000   0.4555   0.00744   0.00217   0.0013   0.1537   1.0000
   4.250   0.4838   0.00768   0.00232   0.0013   0.1350   1.0000
   4.500   0.5121   0.00795   0.00248   0.0013   0.1168   1.0000
   4.750   0.5403   0.00822   0.00267   0.0013   0.1012   1.0000
   5.000   0.5685   0.00849   0.00286   0.0014   0.0879   1.0000
   5.250   0.5966   0.00875   0.00307   0.0014   0.0772   1.0000
   5.500   0.6248   0.00900   0.00328   0.0015   0.0690   1.0000
   5.750   0.6529   0.00926   0.00351   0.0015   0.0618   1.0000
   6.000   0.6809   0.00957   0.00377   0.0016   0.0553   1.0000
   6.250   0.7089   0.00982   0.00401   0.0017   0.0511   1.0000
   6.500   0.7367   0.01014   0.00431   0.0018   0.0467   1.0000
   6.750   0.7646   0.01040   0.00457   0.0019   0.0434   1.0000
   7.000   0.7921   0.01077   0.00493   0.0020   0.0400   1.0000
   7.250   0.8199   0.01103   0.00520   0.0021   0.0379   1.0000
   7.500   0.8473   0.01140   0.00555   0.0022   0.0354   1.0000
   7.750   0.8745   0.01177   0.00596   0.0024   0.0334   1.0000
   8.000   0.9019   0.01206   0.00626   0.0025   0.0318   1.0000
   8.250   0.9289   0.01246   0.00665   0.0026   0.0300   1.0000
   8.500   0.9554   0.01294   0.00717   0.0028   0.0284   1.0000
   8.750   0.9824   0.01327   0.00754   0.0030   0.0274   1.0000
   9.000   1.0092   0.01365   0.00794   0.0032   0.0262   1.0000
   9.250   1.0352   0.01416   0.00846   0.0034   0.0251   1.0000
   9.500   1.0604   0.01483   0.00918   0.0038   0.0240   1.0000
   9.750   1.0866   0.01523   0.00963   0.0040   0.0234   1.0000
  10.000   1.1124   0.01569   0.01014   0.0043   0.0227   1.0000
  10.250   1.1380   0.01616   0.01065   0.0046   0.0219   1.0000
  10.500   1.1629   0.01672   0.01123   0.0049   0.0212   1.0000
  10.750   1.1846   0.01782   0.01240   0.0054   0.0202   1.0000
  11.000   1.2096   0.01830   0.01295   0.0058   0.0199   1.0000
  11.250   1.2338   0.01888   0.01360   0.0062   0.0195   1.0000
  11.500   1.2574   0.01952   0.01431   0.0066   0.0191   1.0000
  11.750   1.2806   0.02019   0.01505   0.0071   0.0187   1.0000
  12.000   1.3032   0.02090   0.01581   0.0075   0.0183   1.0000
  12.250   1.3252   0.02165   0.01661   0.0081   0.0179   1.0000
  12.500   1.3456   0.02255   0.01758   0.0087   0.0175   1.0000
  12.750   1.3625   0.02387   0.01898   0.0095   0.0171   1.0000
  13.000   1.3750   0.02562   0.02086   0.0106   0.0167   1.0000
  13.250   1.3940   0.02648   0.02182   0.0113   0.0165   1.0000
  13.500   1.4116   0.02744   0.02287   0.0121   0.0163   1.0000
  13.750   1.4271   0.02854   0.02408   0.0129   0.0161   1.0000
  14.000   1.4400   0.02982   0.02546   0.0139   0.0158   1.0000
  14.250   1.4487   0.03130   0.02705   0.0150   0.0156   1.0000
  14.500   1.4498   0.03303   0.02890   0.0167   0.0155   1.0000
  14.750   1.4481   0.03551   0.03151   0.0169   0.0153   1.0000
  15.000   1.4447   0.03915   0.03529   0.0147   0.0152   1.0000
  15.250   1.4393   0.04424   0.04053   0.0104   0.0151   1.0000
  15.500   1.4300   0.05040   0.04685   0.0053   0.0150   1.0000
  15.750   1.4143   0.05735   0.05395   0.0004   0.0150   1.0000
  16.000   1.3926   0.06486   0.06161  -0.0042   0.0150   1.0000
  16.250   1.3665   0.07289   0.06978  -0.0089   0.0150   1.0000
  16.500   1.3383   0.08126   0.07828  -0.0135   0.0150   1.0000
  16.750   1.3091   0.08989   0.08704  -0.0182   0.0150   1.0000
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