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NACA 66-021 AIRFOIL (n66021-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: NACA 66-021 AIRFOIL (n66021-il)
Reynolds number: 500,000
Max Cl/Cd: 57.66 at α=6.25°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-n66021-il-500000.txt
Download as CSV file: xf-n66021-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NACA 66-021 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
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -0.9099   0.09421   0.09027  -0.0751   0.9590   0.0215
 -19.500  -0.9224   0.08742   0.08321  -0.0800   0.9500   0.0216
 -19.250  -0.9310   0.08181   0.07737  -0.0834   0.9397   0.0215
 -19.000  -0.9393   0.07739   0.07272  -0.0851   0.9276   0.0216
 -18.750  -0.9456   0.07373   0.06885  -0.0857   0.9172   0.0215
 -18.500  -0.9534   0.07018   0.06510  -0.0860   0.9080   0.0216
 -18.250  -0.9582   0.06709   0.06181  -0.0860   0.9004   0.0216
 -18.000  -0.9630   0.06409   0.05862  -0.0859   0.8932   0.0217
 -17.750  -0.9686   0.06140   0.05572  -0.0855   0.8865   0.0218
 -17.500  -0.9699   0.05896   0.05311  -0.0851   0.8809   0.0219
 -17.250  -0.9610   0.05686   0.05086  -0.0849   0.8759   0.0220
 -17.000  -0.9439   0.05542   0.04933  -0.0849   0.8715   0.0223
 -16.750  -0.9306   0.05408   0.04791  -0.0847   0.8669   0.0225
 -16.500  -0.9187   0.05264   0.04643  -0.0845   0.8625   0.0228
 -16.250  -0.9087   0.05120   0.04492  -0.0843   0.8579   0.0231
 -16.000  -0.8944   0.04999   0.04361  -0.0840   0.8539   0.0231
 -15.750  -0.8815   0.04880   0.04231  -0.0836   0.8498   0.0232
 -15.500  -0.8690   0.04754   0.04099  -0.0833   0.8463   0.0235
 -15.250  -0.8559   0.04633   0.03972  -0.0830   0.8427   0.0239
 -15.000  -0.8430   0.04517   0.03849  -0.0827   0.8391   0.0242
 -14.750  -0.8291   0.04410   0.03733  -0.0822   0.8359   0.0246
 -14.500  -0.8147   0.04312   0.03627  -0.0818   0.8328   0.0247
 -14.250  -0.8007   0.04211   0.03517  -0.0814   0.8298   0.0250
 -14.000  -0.7871   0.04104   0.03402  -0.0809   0.8271   0.0255
 -13.750  -0.7730   0.04005   0.03297  -0.0804   0.8242   0.0257
 -13.500  -0.7605   0.03894   0.03186  -0.0797   0.8216   0.0262
 -13.250  -0.7491   0.03783   0.03072  -0.0789   0.8189   0.0265
 -13.000  -0.7372   0.03678   0.02964  -0.0782   0.8164   0.0272
 -12.750  -0.7244   0.03582   0.02863  -0.0774   0.8139   0.0277
 -12.500  -0.7114   0.03488   0.02764  -0.0768   0.8115   0.0286
 -12.250  -0.6983   0.03392   0.02664  -0.0760   0.8095   0.0292
 -12.000  -0.6844   0.03305   0.02571  -0.0753   0.8073   0.0301
 -11.750  -0.6771   0.03178   0.02445  -0.0740   0.8051   0.0312
 -11.500  -0.6645   0.03087   0.02352  -0.0731   0.8030   0.0320
 -11.250  -0.6519   0.02997   0.02258  -0.0721   0.8009   0.0332
 -11.000  -0.6374   0.02921   0.02176  -0.0713   0.7990   0.0344
 -10.750  -0.6282   0.02817   0.02071  -0.0699   0.7972   0.0361
 -10.500  -0.6147   0.02741   0.01992  -0.0689   0.7953   0.0377
 -10.250  -0.6000   0.02677   0.01922  -0.0680   0.7933   0.0396
 -10.000  -0.5883   0.02589   0.01837  -0.0667   0.7920   0.0425
  -9.750  -0.5730   0.02524   0.01770  -0.0658   0.7904   0.0454
  -9.500  -0.5604   0.02446   0.01697  -0.0645   0.7887   0.0504
  -9.250  -0.5480   0.02370   0.01625  -0.0632   0.7869   0.0588
  -9.000  -0.5395   0.02277   0.01547  -0.0614   0.7853   0.0798
  -8.750  -0.5368   0.02162   0.01460  -0.0589   0.7837   0.1241
  -8.500  -0.5368   0.02041   0.01369  -0.0559   0.7820   0.1776
  -8.250  -0.5384   0.01920   0.01278  -0.0526   0.7805   0.2338
  -8.000  -0.5393   0.01810   0.01189  -0.0493   0.7790   0.2791
  -7.750  -0.5473   0.01680   0.01086  -0.0448   0.7774   0.3318
  -7.500  -0.5568   0.01557   0.00984  -0.0400   0.7758   0.3804
  -7.250  -0.5692   0.01437   0.00887  -0.0345   0.7741   0.4249
  -7.000  -0.5825   0.01320   0.00792  -0.0285   0.7728   0.4683
  -6.750  -0.5987   0.01213   0.00707  -0.0217   0.7712   0.5104
  -6.500  -0.6185   0.01122   0.00644  -0.0138   0.7695   0.5576
  -6.250  -0.6357   0.01103   0.00652  -0.0054   0.7678   0.6057
  -6.000  -0.6336   0.01113   0.00662  -0.0005   0.7664   0.6361
  -5.750  -0.6208   0.01123   0.00668   0.0021   0.7652   0.6522
  -5.500  -0.5994   0.01145   0.00688   0.0033   0.7641   0.6637
  -5.250  -0.5765   0.01165   0.00703   0.0041   0.7629   0.6724
  -5.000  -0.5531   0.01197   0.00731   0.0049   0.7620   0.6820
  -4.750  -0.5209   0.01256   0.00794   0.0042   0.7613   0.6912
  -4.500  -0.4943   0.01307   0.00841   0.0045   0.7605   0.6995
  -4.250  -0.4590   0.01367   0.00902   0.0033   0.7599   0.7058
  -4.000  -0.4161   0.01447   0.00985   0.0007   0.7594   0.7096
  -3.750  -0.3805   0.01502   0.01039  -0.0007   0.7588   0.7134
  -3.500  -0.3636   0.01503   0.01033   0.0009   0.7580   0.7184
  -3.250  -0.3371   0.01517   0.01043   0.0009   0.7573   0.7214
  -3.000  -0.3005   0.01561   0.01088  -0.0008   0.7567   0.7229
  -2.750  -0.2654   0.01608   0.01135  -0.0023   0.7560   0.7242
  -2.500  -0.2338   0.01636   0.01164  -0.0033   0.7555   0.7256
  -2.250  -0.2052   0.01654   0.01182  -0.0038   0.7548   0.7271
  -2.000  -0.1777   0.01670   0.01199  -0.0041   0.7538   0.7288
  -1.750  -0.1555   0.01678   0.01207  -0.0036   0.7529   0.7312
  -1.500  -0.1448   0.01662   0.01188  -0.0013   0.7516   0.7354
  -1.250  -0.1310   0.01652   0.01175   0.0006   0.7502   0.7386
  -1.000  -0.1041   0.01662   0.01187   0.0004   0.7489   0.7398
  -0.750  -0.0780   0.01672   0.01199   0.0002   0.7477   0.7408
  -0.500  -0.0519   0.01681   0.01209   0.0001   0.7464   0.7418
  -0.250  -0.0256   0.01682   0.01210   0.0000   0.7452   0.7428
   0.000   0.0000   0.01683   0.01211   0.0000   0.7440   0.7440
   0.250   0.0255   0.01683   0.01211   0.0000   0.7429   0.7452
   0.500   0.0518   0.01681   0.01209  -0.0001   0.7418   0.7464
   0.750   0.0781   0.01672   0.01199  -0.0002   0.7408   0.7477
   1.000   0.1041   0.01661   0.01187  -0.0004   0.7398   0.7489
   1.250   0.1310   0.01652   0.01175  -0.0006   0.7386   0.7502
   1.500   0.1448   0.01662   0.01188   0.0012   0.7354   0.7515
   1.750   0.1553   0.01678   0.01207   0.0036   0.7312   0.7528
   2.000   0.1777   0.01670   0.01199   0.0041   0.7288   0.7538
   2.250   0.2049   0.01655   0.01183   0.0038   0.7271   0.7548
   2.500   0.2341   0.01635   0.01162   0.0032   0.7256   0.7555
   2.750   0.2656   0.01607   0.01134   0.0023   0.7242   0.7560
   3.000   0.3006   0.01561   0.01088   0.0008   0.7229   0.7567
   3.250   0.3371   0.01517   0.01043  -0.0009   0.7214   0.7573
   3.500   0.3637   0.01503   0.01033  -0.0010   0.7184   0.7580
   3.750   0.3804   0.01502   0.01039   0.0007   0.7134   0.7588
   4.000   0.4160   0.01447   0.00985  -0.0007   0.7096   0.7594
   4.250   0.4612   0.01356   0.00890  -0.0036   0.7054   0.7599
   4.500   0.4945   0.01308   0.00842  -0.0046   0.6997   0.7605
   4.750   0.5207   0.01257   0.00795  -0.0042   0.6913   0.7613
   5.000   0.5533   0.01197   0.00732  -0.0049   0.6822   0.7620
   5.250   0.5765   0.01164   0.00703  -0.0041   0.6724   0.7629
   5.500   0.5996   0.01145   0.00688  -0.0033   0.6639   0.7641
   5.750   0.6208   0.01123   0.00667  -0.0022   0.6522   0.7652
   6.000   0.6336   0.01112   0.00661   0.0005   0.6358   0.7664
   6.250   0.6360   0.01103   0.00652   0.0053   0.6061   0.7677
   6.500   0.6191   0.01121   0.00644   0.0137   0.5580   0.7695
   6.750   0.5996   0.01211   0.00706   0.0216   0.5113   0.7712
   7.000   0.5810   0.01324   0.00794   0.0288   0.4659   0.7728
   7.250   0.5677   0.01442   0.00890   0.0347   0.4226   0.7741
   7.500   0.5564   0.01558   0.00985   0.0400   0.3796   0.7758
   7.750   0.5489   0.01675   0.01081   0.0446   0.3340   0.7774
   8.000   0.5420   0.01800   0.01182   0.0489   0.2840   0.7789
   8.250   0.5358   0.01931   0.01284   0.0529   0.2262   0.7805
   8.500   0.5369   0.02041   0.01368   0.0559   0.1766   0.7820
   8.750   0.5364   0.02164   0.01460   0.0589   0.1216   0.7836
   9.000   0.5390   0.02280   0.01548   0.0614   0.0781   0.7853
   9.250   0.5483   0.02369   0.01624   0.0632   0.0580   0.7869
   9.500   0.5609   0.02444   0.01695   0.0645   0.0499   0.7887
   9.750   0.5737   0.02521   0.01768   0.0657   0.0453   0.7904
  10.000   0.5888   0.02587   0.01834   0.0666   0.0421   0.7920
  10.250   0.6009   0.02673   0.01917   0.0678   0.0396   0.7933
  10.500   0.6154   0.02738   0.01989   0.0688   0.0376   0.7953
  10.750   0.6280   0.02819   0.02072   0.0699   0.0358   0.7972
  11.000   0.6386   0.02915   0.02171   0.0712   0.0341   0.7990
  11.250   0.6522   0.02996   0.02258   0.0721   0.0332   0.8010
  11.500   0.6657   0.03080   0.02345   0.0729   0.0321   0.8030
  11.750   0.6775   0.03177   0.02443   0.0739   0.0310   0.8051
  12.000   0.6840   0.03308   0.02573   0.0753   0.0299   0.8074
  12.250   0.6994   0.03387   0.02658   0.0759   0.0290   0.8095
  12.500   0.7120   0.03486   0.02761   0.0767   0.0285   0.8115
  12.750   0.7250   0.03579   0.02860   0.0774   0.0281   0.8139
  13.000   0.7379   0.03674   0.02960   0.0781   0.0274   0.8165
  13.250   0.7501   0.03778   0.03067   0.0788   0.0267   0.8190
  13.500   0.7612   0.03891   0.03182   0.0796   0.0261   0.8216
  13.750   0.7741   0.03997   0.03289   0.0803   0.0258   0.8243
  14.000   0.7880   0.04098   0.03397   0.0808   0.0254   0.8272
  14.250   0.8021   0.04201   0.03506   0.0812   0.0252   0.8299
  14.500   0.8160   0.04305   0.03619   0.0817   0.0247   0.8329
  14.750   0.8301   0.04405   0.03728   0.0822   0.0244   0.8360
  15.000   0.8438   0.04512   0.03843   0.0826   0.0241   0.8393
  15.250   0.8579   0.04622   0.03960   0.0829   0.0238   0.8428
  15.500   0.8706   0.04744   0.04088   0.0833   0.0236   0.8464
  15.750   0.8835   0.04866   0.04217   0.0835   0.0233   0.8500
  16.000   0.8970   0.04985   0.04346   0.0839   0.0232   0.8540
  16.250   0.9078   0.05118   0.04489   0.0842   0.0229   0.8584
  16.500   0.9202   0.05253   0.04628   0.0845   0.0226   0.8629
  16.750   0.9359   0.05374   0.04749   0.0844   0.0222   0.8670
  17.000   0.9444   0.05537   0.04929   0.0848   0.0223   0.8719
  17.250   0.9556   0.05695   0.05099   0.0851   0.0222   0.8770
  17.500   0.9684   0.05894   0.05309   0.0851   0.0219   0.8816
  17.750   0.9722   0.06115   0.05545   0.0854   0.0219   0.8870
  18.000   0.9655   0.06398   0.05850   0.0858   0.0217   0.8938
  18.250   0.9632   0.06682   0.06152   0.0859   0.0217   0.9008
  18.500   0.9565   0.06989   0.06479   0.0860   0.0216   0.9092
  18.750   0.9469   0.07363   0.06876   0.0857   0.0215   0.9187
  19.000   0.9399   0.07738   0.07273   0.0849   0.0215   0.9298
  19.250   0.9306   0.08214   0.07772   0.0829   0.0215   0.9420
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