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NACA 65(4)-221 (naca654221-il) Xfoil prediction polar at RE=500,000 Ncrit=5


Details Polar file
Airfoil: NACA 65(4)-221 (naca654221-il)
Reynolds number: 500,000
Max Cl/Cd: 78.56 at α=6°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-naca654221-il-500000-n5.txt
Download as CSV file: xf-naca654221-il-500000-n5.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 =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -0.9766   0.09087   0.08608  -0.0601   1.0000   0.0197
 -19.500  -0.9767   0.08755   0.08266  -0.0614   1.0000   0.0197
 -19.250  -0.9765   0.08426   0.07927  -0.0627   1.0000   0.0199
 -19.000  -0.9747   0.08130   0.07622  -0.0638   1.0000   0.0200
 -18.750  -0.9725   0.07844   0.07327  -0.0647   1.0000   0.0201
 -18.500  -0.9695   0.07571   0.07044  -0.0656   1.0000   0.0202
 -18.250  -0.9658   0.07314   0.06779  -0.0663   1.0000   0.0203
 -18.000  -0.9613   0.07067   0.06524  -0.0670   1.0000   0.0204
 -17.750  -0.9568   0.06834   0.06286  -0.0674   1.0000   0.0205
 -17.500  -0.9510   0.06619   0.06066  -0.0678   1.0000   0.0206
 -17.250  -0.9459   0.06396   0.05840  -0.0682   1.0000   0.0209
 -17.000  -0.9395   0.06189   0.05629  -0.0686   1.0000   0.0211
 -16.750  -0.9327   0.05990   0.05425  -0.0688   1.0000   0.0212
 -16.500  -0.9255   0.05795   0.05227  -0.0691   1.0000   0.0214
 -16.250  -0.9162   0.05601   0.05029  -0.0696   0.9711   0.0215
 -16.000  -0.8885   0.05356   0.04774  -0.0747   0.9484   0.0218
 -15.750  -0.8602   0.05128   0.04535  -0.0794   0.9303   0.0220
 -15.500  -0.8415   0.04943   0.04338  -0.0816   0.9087   0.0223
 -15.250  -0.8305   0.04785   0.04167  -0.0820   0.8899   0.0225
 -15.000  -0.8207   0.04642   0.04012  -0.0818   0.8752   0.0227
 -14.750  -0.8117   0.04499   0.03859  -0.0815   0.8623   0.0229
 -14.500  -0.8027   0.04358   0.03708  -0.0811   0.8515   0.0230
 -14.250  -0.7928   0.04229   0.03568  -0.0806   0.8410   0.0232
 -14.000  -0.7827   0.04098   0.03430  -0.0802   0.8314   0.0235
 -13.750  -0.7729   0.03971   0.03293  -0.0797   0.8223   0.0237
 -13.500  -0.7612   0.03856   0.03169  -0.0793   0.8145   0.0240
 -13.250  -0.7513   0.03731   0.03038  -0.0788   0.8066   0.0242
 -13.000  -0.7436   0.03593   0.02893  -0.0781   0.7998   0.0245
 -12.750  -0.7342   0.03466   0.02763  -0.0775   0.7927   0.0248
 -12.500  -0.7238   0.03352   0.02642  -0.0768   0.7857   0.0251
 -12.250  -0.7129   0.03243   0.02527  -0.0761   0.7795   0.0253
 -12.000  -0.7012   0.03139   0.02418  -0.0755   0.7727   0.0258
 -11.750  -0.6901   0.03037   0.02308  -0.0747   0.7661   0.0261
 -11.500  -0.6780   0.02940   0.02207  -0.0739   0.7604   0.0265
 -11.250  -0.6660   0.02845   0.02106  -0.0732   0.7545   0.0270
 -11.000  -0.6536   0.02757   0.02011  -0.0723   0.7489   0.0274
 -10.750  -0.6407   0.02673   0.01921  -0.0715   0.7441   0.0278
 -10.500  -0.6276   0.02589   0.01833  -0.0707   0.7391   0.0281
 -10.250  -0.6168   0.02496   0.01736  -0.0696   0.7337   0.0288
 -10.000  -0.6052   0.02411   0.01646  -0.0685   0.7286   0.0296
  -9.750  -0.5916   0.02336   0.01568  -0.0676   0.7240   0.0304
  -9.500  -0.5783   0.02260   0.01488  -0.0666   0.7192   0.0313
  -9.250  -0.5639   0.02192   0.01415  -0.0657   0.7145   0.0323
  -9.000  -0.5505   0.02123   0.01341  -0.0646   0.7102   0.0332
  -8.750  -0.5377   0.02049   0.01266  -0.0634   0.7064   0.0352
  -8.500  -0.5232   0.01984   0.01199  -0.0624   0.7025   0.0369
  -8.250  -0.5100   0.01916   0.01130  -0.0612   0.6984   0.0397
  -8.000  -0.4969   0.01850   0.01062  -0.0599   0.6943   0.0437
  -7.500  -0.4770   0.01695   0.00915  -0.0565   0.6868   0.0663
  -7.250  -0.4695   0.01611   0.00840  -0.0544   0.6829   0.0859
  -7.000  -0.4635   0.01527   0.00766  -0.0520   0.6792   0.1092
  -6.750  -0.4580   0.01448   0.00696  -0.0493   0.6757   0.1349
  -6.500  -0.4545   0.01374   0.00630  -0.0462   0.6725   0.1608
  -6.250  -0.4548   0.01314   0.00581  -0.0421   0.6695   0.1880
  -6.000  -0.4496   0.01253   0.00535  -0.0389   0.6665   0.2250
  -5.750  -0.4421   0.01182   0.00485  -0.0361   0.6633   0.2737
  -5.500  -0.4357   0.01094   0.00427  -0.0332   0.6601   0.3427
  -5.250  -0.4283   0.00999   0.00373  -0.0304   0.6570   0.4335
  -5.000  -0.4078   0.00965   0.00356  -0.0295   0.6542   0.4848
  -4.750  -0.3827   0.00951   0.00350  -0.0293   0.6517   0.5134
  -4.500  -0.3559   0.00946   0.00347  -0.0293   0.6492   0.5334
  -4.250  -0.3283   0.00943   0.00345  -0.0295   0.6466   0.5453
  -4.000  -0.3005   0.00944   0.00344  -0.0296   0.6440   0.5580
  -3.750  -0.2727   0.00951   0.00346  -0.0298   0.6416   0.5706
  -3.500  -0.2443   0.00951   0.00347  -0.0301   0.6393   0.5769
  -3.250  -0.2156   0.00952   0.00342  -0.0304   0.6370   0.5805
  -3.000  -0.1867   0.00951   0.00337  -0.0308   0.6347   0.5832
  -2.750  -0.1576   0.00948   0.00331  -0.0313   0.6323   0.5856
  -2.500  -0.1285   0.00946   0.00324  -0.0318   0.6298   0.5877
  -2.250  -0.0995   0.00944   0.00318  -0.0322   0.6275   0.5895
  -2.000  -0.0705   0.00941   0.00315  -0.0327   0.6254   0.5915
  -1.750  -0.0416   0.00940   0.00312  -0.0331   0.6232   0.5936
  -1.500  -0.0126   0.00940   0.00310  -0.0335   0.6212   0.5956
  -1.250   0.0165   0.00941   0.00307  -0.0340   0.6193   0.5975
  -1.000   0.0456   0.00941   0.00306  -0.0344   0.6173   0.5995
  -0.750   0.0747   0.00941   0.00305  -0.0349   0.6152   0.6016
  -0.500   0.1038   0.00941   0.00305  -0.0354   0.6129   0.6039
  -0.250   0.1329   0.00942   0.00304  -0.0359   0.6107   0.6059
   0.000   0.1620   0.00943   0.00304  -0.0363   0.6087   0.6078
   0.250   0.1909   0.00942   0.00305  -0.0368   0.6067   0.6096
   0.500   0.2199   0.00944   0.00307  -0.0372   0.6048   0.6115
   0.750   0.2488   0.00946   0.00309  -0.0376   0.6030   0.6135
   1.000   0.2778   0.00951   0.00312  -0.0381   0.6010   0.6157
   1.250   0.3067   0.00953   0.00317  -0.0385   0.5990   0.6180
   1.500   0.3356   0.00955   0.00322  -0.0389   0.5970   0.6204
   1.750   0.3646   0.00958   0.00327  -0.0394   0.5951   0.6226
   2.000   0.3935   0.00962   0.00332  -0.0399   0.5931   0.6245
   2.250   0.4222   0.00964   0.00337  -0.0403   0.5910   0.6265
   2.500   0.4508   0.00967   0.00343  -0.0406   0.5889   0.6286
   2.750   0.4794   0.00971   0.00350  -0.0410   0.5868   0.6307
   3.000   0.5082   0.00976   0.00357  -0.0414   0.5850   0.6330
   3.250   0.5371   0.00983   0.00365  -0.0419   0.5830   0.6355
   3.500   0.5653   0.00988   0.00376  -0.0422   0.5810   0.6382
   3.750   0.5935   0.00993   0.00385  -0.0425   0.5784   0.6408
   4.000   0.6215   0.00997   0.00393  -0.0428   0.5749   0.6432
   4.250   0.6491   0.00999   0.00401  -0.0430   0.5711   0.6455
   4.500   0.6768   0.01004   0.00406  -0.0431   0.5671   0.6479
   4.750   0.7027   0.01005   0.00415  -0.0430   0.5597   0.6504
   5.000   0.7278   0.01007   0.00416  -0.0427   0.5497   0.6532
   5.250   0.7531   0.01011   0.00426  -0.0424   0.5401   0.6560
   5.500   0.7776   0.01019   0.00433  -0.0420   0.5304   0.6589
   5.750   0.8001   0.01030   0.00442  -0.0412   0.5157   0.6617
   6.000   0.8202   0.01044   0.00456  -0.0401   0.4942   0.6647
   6.250   0.8358   0.01070   0.00476  -0.0381   0.4672   0.6679
   6.500   0.8410   0.01119   0.00508  -0.0343   0.4256   0.6712
   6.750   0.8291   0.01196   0.00563  -0.0276   0.3806   0.6747
   7.000   0.8184   0.01305   0.00652  -0.0218   0.3381   0.6782
   7.250   0.8095   0.01428   0.00756  -0.0167   0.2972   0.6815
   7.500   0.8049   0.01550   0.00865  -0.0127   0.2619   0.6850
   7.750   0.8011   0.01683   0.00984  -0.0091   0.2278   0.6888
   8.000   0.7983   0.01823   0.01109  -0.0058   0.1949   0.6930
   8.250   0.8017   0.01942   0.01219  -0.0034   0.1720   0.6972
   8.500   0.8040   0.02072   0.01339  -0.0011   0.1478   0.7012
   8.750   0.8070   0.02202   0.01462   0.0011   0.1256   0.7054
   9.000   0.8103   0.02337   0.01588   0.0031   0.1032   0.7097
   9.250   0.8156   0.02465   0.01709   0.0048   0.0858   0.7142
   9.500   0.8206   0.02601   0.01836   0.0064   0.0685   0.7182
   9.750   0.8260   0.02734   0.01966   0.0080   0.0533   0.7225
  10.000   0.8336   0.02860   0.02089   0.0092   0.0432   0.7273
  10.250   0.8431   0.02979   0.02208   0.0103   0.0376   0.7324
  10.500   0.8540   0.03093   0.02322   0.0112   0.0339   0.7373
  10.750   0.8651   0.03203   0.02437   0.0120   0.0316   0.7425
  11.000   0.8759   0.03320   0.02557   0.0129   0.0297   0.7483
  11.250   0.8885   0.03428   0.02671   0.0135   0.0285   0.7540
  11.500   0.9002   0.03545   0.02792   0.0141   0.0273   0.7592
  11.750   0.9112   0.03665   0.02918   0.0148   0.0264   0.7650
  12.000   0.9214   0.03797   0.03054   0.0155   0.0255   0.7711
  12.250   0.9333   0.03918   0.03182   0.0160   0.0247   0.7770
  12.500   0.9446   0.04043   0.03315   0.0165   0.0242   0.7836
  12.750   0.9553   0.04178   0.03456   0.0170   0.0235   0.7909
  13.000   0.9654   0.04319   0.03602   0.0175   0.0229   0.7980
  13.250   0.9748   0.04465   0.03754   0.0180   0.0223   0.8059
  13.500   0.9828   0.04632   0.03926   0.0185   0.0218   0.8136
  13.750   0.9929   0.04775   0.04079   0.0189   0.0215   0.8218
  14.000   1.0033   0.04923   0.04235   0.0192   0.0209   0.8304
  14.250   1.0121   0.05084   0.04406   0.0195   0.0206   0.8392
  14.500   1.0211   0.05246   0.04576   0.0198   0.0203   0.8490
  14.750   1.0284   0.05421   0.04761   0.0202   0.0199   0.8601
  15.000   1.0362   0.05592   0.04942   0.0205   0.0197   0.8731
  15.250   1.0434   0.05767   0.05126   0.0209   0.0193   0.8899
  15.500   1.0496   0.05965   0.05337   0.0210   0.0191   0.9139
  15.750   1.0629   0.06202   0.05584   0.0192   0.0188   0.9444
  16.000   1.0706   0.06455   0.05844   0.0179   0.0184   1.0000
  16.250   1.0774   0.06677   0.06071   0.0176   0.0183   1.0000
  16.500   1.0847   0.06896   0.06297   0.0172   0.0182   1.0000
  16.750   1.0910   0.07131   0.06538   0.0168   0.0180   1.0000
  17.000   1.0967   0.07370   0.06783   0.0163   0.0179   1.0000
  17.250   1.1028   0.07614   0.07034   0.0158   0.0176   1.0000
  17.500   1.1080   0.07868   0.07294   0.0152   0.0173   1.0000
  17.750   1.1123   0.08140   0.07572   0.0145   0.0172   1.0000
  18.000   1.1174   0.08402   0.07841   0.0137   0.0171   1.0000
  18.250   1.1215   0.08683   0.08129   0.0129   0.0169   1.0000
  18.500   1.1253   0.08968   0.08420   0.0120   0.0167   1.0000
  18.750   1.1292   0.09258   0.08717   0.0110   0.0165   1.0000
  19.000   1.1325   0.09556   0.09022   0.0099   0.0164   1.0000
  19.250   1.1353   0.09869   0.09341   0.0087   0.0162   1.0000
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