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NACA 65(4)-221 (naca654221-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: NACA 65(4)-221 (naca654221-il)
Reynolds number: 500,000
Max Cl/Cd: 86.17 at α=7.25°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-naca654221-il-500000.txt
Download as CSV file: xf-naca654221-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NACA 65(4)-221                                  
  
 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  -0.8809   0.10475   0.10116  -0.0601   1.0000   0.0271
 -19.500  -0.9056   0.09736   0.09358  -0.0639   1.0000   0.0271
 -19.250  -0.9271   0.09080   0.08682  -0.0670   1.0000   0.0271
 -19.000  -0.9438   0.08525   0.08109  -0.0692   1.0000   0.0271
 -18.750  -0.9573   0.08038   0.07605  -0.0710   1.0000   0.0272
 -18.500  -0.9688   0.07591   0.07142  -0.0725   1.0000   0.0272
 -18.250  -0.9770   0.07200   0.06734  -0.0735   1.0000   0.0273
 -18.000  -0.9851   0.06832   0.06350  -0.0744   1.0000   0.0275
 -17.750  -0.9886   0.06513   0.06016  -0.0749   1.0000   0.0275
 -17.500  -0.9964   0.06195   0.05682  -0.0755   1.0000   0.0278
 -17.250  -0.9996   0.05912   0.05384  -0.0758   1.0000   0.0279
 -17.000  -1.0035   0.05649   0.05106  -0.0759   1.0000   0.0280
 -16.750  -1.0019   0.05430   0.04874  -0.0758   1.0000   0.0281
 -16.500  -0.9823   0.05262   0.04699  -0.0754   1.0000   0.0285
 -16.250  -0.9658   0.05135   0.04569  -0.0751   1.0000   0.0287
 -16.000  -0.9510   0.05011   0.04443  -0.0748   1.0000   0.0289
 -15.750  -0.9378   0.04883   0.04313  -0.0746   1.0000   0.0292
 -15.500  -0.9251   0.04755   0.04181  -0.0744   1.0000   0.0295
 -15.250  -0.9108   0.04639   0.04061  -0.0741   1.0000   0.0297
 -15.000  -0.8987   0.04512   0.03931  -0.0739   1.0000   0.0301
 -14.750  -0.8845   0.04401   0.03817  -0.0737   1.0000   0.0304
 -14.500  -0.8576   0.04265   0.03677  -0.0761   0.9676   0.0308
 -14.250  -0.8212   0.04125   0.03527  -0.0804   0.9534   0.0312
 -14.000  -0.7861   0.03999   0.03391  -0.0841   0.9375   0.0317
 -13.750  -0.7611   0.03899   0.03278  -0.0856   0.9178   0.0320
 -13.500  -0.7445   0.03812   0.03179  -0.0854   0.9005   0.0322
 -13.250  -0.7300   0.03728   0.03084  -0.0848   0.8866   0.0324
 -13.000  -0.7162   0.03643   0.02989  -0.0841   0.8748   0.0327
 -12.750  -0.7028   0.03559   0.02902  -0.0830   0.8642   0.0331
 -12.500  -0.6918   0.03459   0.02797  -0.0820   0.8545   0.0336
 -12.250  -0.6808   0.03359   0.02692  -0.0811   0.8451   0.0341
 -12.000  -0.6696   0.03261   0.02588  -0.0802   0.8367   0.0346
 -11.750  -0.6582   0.03162   0.02485  -0.0793   0.8281   0.0352
 -11.500  -0.6473   0.03065   0.02379  -0.0784   0.8207   0.0358
 -11.250  -0.6358   0.02967   0.02277  -0.0775   0.8133   0.0363
 -11.000  -0.6246   0.02873   0.02175  -0.0765   0.8063   0.0368
 -10.750  -0.6131   0.02782   0.02076  -0.0755   0.8000   0.0374
 -10.500  -0.6018   0.02689   0.01980  -0.0745   0.7933   0.0378
 -10.250  -0.5972   0.02564   0.01849  -0.0729   0.7868   0.0387
 -10.000  -0.5884   0.02464   0.01745  -0.0716   0.7808   0.0398
  -9.750  -0.5774   0.02374   0.01652  -0.0704   0.7748   0.0408
  -9.500  -0.5660   0.02291   0.01563  -0.0692   0.7692   0.0422
  -9.250  -0.5539   0.02215   0.01479  -0.0680   0.7640   0.0435
  -9.000  -0.5454   0.02117   0.01381  -0.0664   0.7588   0.0454
  -8.750  -0.5348   0.02034   0.01296  -0.0650   0.7537   0.0486
  -8.500  -0.5249   0.01951   0.01211  -0.0634   0.7490   0.0525
  -8.250  -0.5181   0.01857   0.01120  -0.0615   0.7443   0.0624
  -8.000  -0.5181   0.01733   0.01013  -0.0587   0.7394   0.0885
  -7.750  -0.5266   0.01582   0.00888  -0.0548   0.7344   0.1375
  -7.500  -0.5318   0.01460   0.00784  -0.0509   0.7298   0.1801
  -7.250  -0.5412   0.01342   0.00686  -0.0461   0.7255   0.2256
  -7.000  -0.5534   0.01256   0.00622  -0.0401   0.7213   0.2698
  -6.750  -0.5580   0.01157   0.00552  -0.0354   0.7172   0.3354
  -6.500  -0.5587   0.01052   0.00487  -0.0314   0.7136   0.4204
  -6.250  -0.5435   0.01008   0.00465  -0.0296   0.7102   0.4831
  -6.000  -0.5197   0.00998   0.00459  -0.0291   0.7070   0.5108
  -5.750  -0.4936   0.00993   0.00454  -0.0290   0.7037   0.5280
  -5.500  -0.4666   0.00992   0.00449  -0.0290   0.7003   0.5408
  -5.250  -0.4395   0.00996   0.00445  -0.0291   0.6971   0.5535
  -5.000  -0.4117   0.01000   0.00450  -0.0292   0.6943   0.5633
  -4.750  -0.3840   0.01011   0.00451  -0.0293   0.6914   0.5733
  -4.500  -0.3558   0.01027   0.00468  -0.0294   0.6887   0.5829
  -4.250  -0.3279   0.01034   0.00471  -0.0296   0.6861   0.5904
  -4.000  -0.2989   0.01049   0.00491  -0.0298   0.6833   0.5982
  -3.750  -0.2710   0.01073   0.00506  -0.0299   0.6804   0.6069
  -3.500  -0.2416   0.01073   0.00510  -0.0302   0.6777   0.6120
  -3.250  -0.2123   0.01076   0.00510  -0.0307   0.6751   0.6152
  -3.000  -0.1831   0.01083   0.00509  -0.0311   0.6725   0.6184
  -2.750  -0.1543   0.01082   0.00505  -0.0316   0.6702   0.6211
  -2.500  -0.1256   0.01079   0.00498  -0.0321   0.6679   0.6234
  -2.250  -0.0967   0.01074   0.00490  -0.0325   0.6654   0.6256
  -2.000  -0.0676   0.01065   0.00481  -0.0330   0.6630   0.6277
  -1.750  -0.0382   0.01061   0.00476  -0.0335   0.6607   0.6296
  -1.500  -0.0088   0.01060   0.00473  -0.0340   0.6584   0.6316
  -1.250   0.0206   0.01062   0.00471  -0.0346   0.6561   0.6338
  -1.000   0.0500   0.01069   0.00474  -0.0351   0.6536   0.6361
  -0.750   0.0788   0.01067   0.00473  -0.0356   0.6517   0.6384
  -0.500   0.1077   0.01067   0.00472  -0.0361   0.6495   0.6405
  -0.250   0.1367   0.01068   0.00471  -0.0366   0.6473   0.6424
   0.000   0.1658   0.01064   0.00467  -0.0371   0.6451   0.6447
   0.250   0.1950   0.01061   0.00466  -0.0376   0.6429   0.6469
   0.500   0.2244   0.01062   0.00467  -0.0381   0.6407   0.6490
   0.750   0.2539   0.01065   0.00470  -0.0387   0.6386   0.6511
   1.000   0.2835   0.01076   0.00478  -0.0393   0.6365   0.6533
   1.250   0.3122   0.01080   0.00485  -0.0397   0.6347   0.6556
   1.500   0.3408   0.01083   0.00491  -0.0402   0.6327   0.6580
   1.750   0.3695   0.01087   0.00497  -0.0406   0.6305   0.6603
   2.000   0.3983   0.01088   0.00500  -0.0411   0.6281   0.6626
   2.250   0.4272   0.01088   0.00503  -0.0415   0.6259   0.6651
   2.500   0.4564   0.01091   0.00510  -0.0420   0.6240   0.6674
   2.750   0.4858   0.01097   0.00517  -0.0426   0.6220   0.6697
   3.000   0.5154   0.01105   0.00526  -0.0432   0.6199   0.6722
   3.250   0.5444   0.01119   0.00542  -0.0437   0.6177   0.6748
   3.500   0.5720   0.01123   0.00552  -0.0439   0.6154   0.6774
   3.750   0.5999   0.01127   0.00559  -0.0442   0.6123   0.6798
   4.000   0.6281   0.01123   0.00562  -0.0445   0.6091   0.6827
   4.250   0.6570   0.01123   0.00566  -0.0449   0.6061   0.6854
   4.500   0.6866   0.01123   0.00567  -0.0454   0.6025   0.6882
   4.750   0.7127   0.01119   0.00569  -0.0452   0.5965   0.6911
   5.000   0.7396   0.01104   0.00555  -0.0451   0.5892   0.6942
   5.250   0.7689   0.01103   0.00549  -0.0455   0.5832   0.6971
   5.500   0.7929   0.01095   0.00551  -0.0450   0.5765   0.6999
   5.750   0.8186   0.01081   0.00539  -0.0447   0.5681   0.7030
   6.000   0.8422   0.01077   0.00544  -0.0441   0.5590   0.7062
   6.250   0.8669   0.01076   0.00544  -0.0436   0.5502   0.7097
   6.500   0.8897   0.01078   0.00553  -0.0429   0.5395   0.7135
   6.750   0.9120   0.01084   0.00560  -0.0421   0.5276   0.7170
   7.000   0.9326   0.01091   0.00568  -0.0409   0.5145   0.7205
   7.250   0.9504   0.01103   0.00584  -0.0393   0.4972   0.7242
   7.500   0.9638   0.01125   0.00604  -0.0369   0.4730   0.7280
   7.750   0.9628   0.01164   0.00633  -0.0319   0.4403   0.7325
   8.000   0.9503   0.01255   0.00702  -0.0254   0.3990   0.7370
   8.250   0.9363   0.01373   0.00805  -0.0194   0.3581   0.7420
   8.500   0.9224   0.01519   0.00934  -0.0139   0.3190   0.7472
   8.750   0.9104   0.01682   0.01079  -0.0092   0.2806   0.7528
   9.000   0.8999   0.01857   0.01235  -0.0051   0.2430   0.7581
   9.250   0.8921   0.02027   0.01394  -0.0016   0.2094   0.7636
   9.500   0.8851   0.02209   0.01560   0.0016   0.1755   0.7693
   9.750   0.8791   0.02398   0.01730   0.0044   0.1422   0.7751
  10.000   0.8717   0.02596   0.01912   0.0072   0.1065   0.7809
  10.250   0.8649   0.02803   0.02102   0.0098   0.0739   0.7871
  10.500   0.8640   0.02988   0.02273   0.0116   0.0541   0.7937
  10.750   0.8677   0.03143   0.02426   0.0132   0.0460   0.8000
  11.000   0.8757   0.03274   0.02561   0.0143   0.0420   0.8072
  11.250   0.8828   0.03420   0.02708   0.0154   0.0395   0.8144
  11.500   0.8923   0.03543   0.02841   0.0163   0.0376   0.8217
  11.750   0.9010   0.03680   0.02982   0.0172   0.0362   0.8299
  12.000   0.9045   0.03856   0.03163   0.0184   0.0347   0.8377
  12.250   0.9145   0.03986   0.03301   0.0191   0.0336   0.8469
  12.500   0.9232   0.04125   0.03450   0.0199   0.0328   0.8562
  12.750   0.9313   0.04273   0.03604   0.0207   0.0318   0.8671
  13.000   0.9379   0.04423   0.03764   0.0217   0.0311   0.8796
  13.250   0.9409   0.04606   0.03954   0.0228   0.0303   0.8946
  13.500   0.9448   0.04779   0.04137   0.0238   0.0298   0.9147
  13.750   0.9593   0.04938   0.04311   0.0231   0.0293   0.9446
  14.000   0.9786   0.05125   0.04507   0.0207   0.0285   1.0000
  14.250   0.9891   0.05295   0.04680   0.0206   0.0281   1.0000
  14.500   0.9987   0.05473   0.04861   0.0206   0.0277   1.0000
  14.750   1.0076   0.05657   0.05047   0.0205   0.0272   1.0000
  15.000   1.0175   0.05833   0.05224   0.0204   0.0268   1.0000
  15.250   1.0259   0.06018   0.05409   0.0204   0.0263   1.0000
  15.500   1.0348   0.06194   0.05586   0.0205   0.0260   1.0000
  15.750   1.0458   0.06339   0.05731   0.0208   0.0256   1.0000
  16.000   1.0558   0.06525   0.05926   0.0206   0.0253   1.0000
  16.250   1.0671   0.06690   0.06095   0.0204   0.0251   1.0000
  16.500   1.0782   0.06857   0.06267   0.0203   0.0249   1.0000
  16.750   1.0881   0.07041   0.06458   0.0200   0.0246   1.0000
  17.000   1.0987   0.07216   0.06637   0.0198   0.0244   1.0000
  17.250   1.1081   0.07409   0.06837   0.0195   0.0239   1.0000
  17.500   1.1171   0.07610   0.07043   0.0191   0.0236   1.0000
  17.750   1.1267   0.07802   0.07240   0.0187   0.0233   1.0000
  18.000   1.1357   0.08003   0.07446   0.0183   0.0231   1.0000
  18.250   1.1446   0.08205   0.07653   0.0179   0.0228   1.0000
  18.500   1.1544   0.08395   0.07847   0.0175   0.0227   1.0000
  18.750   1.1644   0.08582   0.08036   0.0171   0.0224   1.0000
  19.000   1.1758   0.08750   0.08207   0.0168   0.0222   1.0000
  19.250   1.1943   0.08826   0.08286   0.0172   0.0218   1.0000
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