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NACA 65(4)-421 a=0.5 (naca654421a05-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: NACA 65(4)-421 a=0.5 (naca654421a05-il)
Reynolds number: 500,000
Max Cl/Cd: 96.51 at α=7.75°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-naca654421a05-il-500000.txt
Download as CSV file: xf-naca654421a05-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NACA 65(4)-421 a=0.5                            
  
 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
  ------ -------- --------- --------- -------- -------- --------
 -17.750  -0.6881   0.08792   0.08440  -0.0847   0.8489   0.0296
 -17.500  -0.7354   0.07759   0.07378  -0.0905   0.8451   0.0295
 -17.250  -0.7678   0.07041   0.06635  -0.0938   0.8400   0.0295
 -17.000  -0.7814   0.06616   0.06192  -0.0955   0.8341   0.0297
 -16.750  -0.7983   0.06178   0.05732  -0.0967   0.8289   0.0298
 -16.500  -0.8120   0.05788   0.05325  -0.0977   0.8235   0.0300
 -16.250  -0.8214   0.05479   0.04999  -0.0981   0.8178   0.0303
 -16.000  -0.8308   0.05177   0.04675  -0.0981   0.8124   0.0305
 -15.750  -0.8383   0.04907   0.04388  -0.0980   0.8072   0.0308
 -15.500  -0.8445   0.04665   0.04127  -0.0975   0.8016   0.0311
 -15.250  -0.8487   0.04438   0.03879  -0.0968   0.7963   0.0314
 -15.000  -0.8549   0.04255   0.03675  -0.0957   0.7912   0.0317
 -14.750  -0.8614   0.04082   0.03483  -0.0944   0.7860   0.0319
 -14.500  -0.8664   0.03945   0.03328  -0.0928   0.7809   0.0321
 -14.250  -0.8360   0.03714   0.03093  -0.0937   0.7771   0.0329
 -14.000  -0.8226   0.03600   0.02970  -0.0932   0.7726   0.0333
 -13.750  -0.8086   0.03481   0.02846  -0.0927   0.7685   0.0336
 -13.500  -0.7933   0.03382   0.02742  -0.0922   0.7641   0.0340
 -13.250  -0.7782   0.03276   0.02627  -0.0916   0.7599   0.0344
 -13.000  -0.7646   0.03183   0.02522  -0.0909   0.7557   0.0349
 -12.750  -0.7509   0.03089   0.02418  -0.0901   0.7517   0.0355
 -12.500  -0.7357   0.02995   0.02315  -0.0894   0.7476   0.0359
 -12.250  -0.7184   0.02905   0.02215  -0.0888   0.7437   0.0362
 -12.000  -0.7015   0.02825   0.02122  -0.0881   0.7401   0.0365
 -11.750  -0.6848   0.02752   0.02036  -0.0874   0.7364   0.0368
 -11.500  -0.6544   0.02655   0.01939  -0.0878   0.7334   0.0374
 -11.250  -0.6297   0.02580   0.01865  -0.0878   0.7302   0.0379
 -11.000  -0.6091   0.02510   0.01795  -0.0873   0.7269   0.0383
 -10.750  -0.5899   0.02443   0.01725  -0.0868   0.7237   0.0388
 -10.500  -0.5719   0.02380   0.01658  -0.0861   0.7206   0.0393
 -10.250  -0.5542   0.02320   0.01591  -0.0853   0.7173   0.0399
 -10.000  -0.5364   0.02255   0.01524  -0.0845   0.7146   0.0403
  -9.750  -0.5194   0.02189   0.01456  -0.0837   0.7115   0.0407
  -9.500  -0.5029   0.02124   0.01387  -0.0827   0.7084   0.0411
  -9.250  -0.4867   0.02063   0.01322  -0.0818   0.7056   0.0416
  -9.000  -0.4708   0.02004   0.01257  -0.0807   0.7029   0.0420
  -8.750  -0.4550   0.01950   0.01195  -0.0796   0.7002   0.0423
  -8.500  -0.4453   0.01866   0.01110  -0.0777   0.6976   0.0429
  -8.250  -0.4344   0.01792   0.01036  -0.0760   0.6953   0.0437
  -8.000  -0.4217   0.01730   0.00974  -0.0743   0.6928   0.0444
  -7.750  -0.4082   0.01677   0.00919  -0.0727   0.6902   0.0453
  -7.500  -0.3946   0.01630   0.00868  -0.0709   0.6877   0.0462
  -7.250  -0.3815   0.01593   0.00827  -0.0688   0.6853   0.0472
  -7.000  -0.3675   0.01567   0.00793  -0.0668   0.6829   0.0482
  -6.750  -0.3551   0.01529   0.00752  -0.0646   0.6803   0.0500
  -6.500  -0.3371   0.01493   0.00718  -0.0633   0.6786   0.0522
  -6.250  -0.3169   0.01465   0.00688  -0.0623   0.6766   0.0548
  -6.000  -0.2982   0.01427   0.00654  -0.0612   0.6744   0.0597
  -5.750  -0.2795   0.01385   0.00620  -0.0600   0.6723   0.0730
  -5.500  -0.2691   0.01298   0.00569  -0.0577   0.6703   0.1431
  -5.250  -0.2584   0.01202   0.00518  -0.0555   0.6683   0.2395
  -5.000  -0.2493   0.01089   0.00461  -0.0531   0.6663   0.3670
  -4.750  -0.2336   0.01024   0.00440  -0.0514   0.6643   0.4798
  -4.500  -0.2081   0.01021   0.00443  -0.0512   0.6621   0.5169
  -4.250  -0.1811   0.01017   0.00443  -0.0512   0.6606   0.5384
  -4.000  -0.1534   0.01017   0.00444  -0.0514   0.6589   0.5540
  -3.750  -0.1253   0.01022   0.00445  -0.0515   0.6570   0.5677
  -3.500  -0.0973   0.01024   0.00450  -0.0517   0.6552   0.5792
  -3.250  -0.0691   0.01029   0.00453  -0.0519   0.6534   0.5906
  -3.000  -0.0407   0.01037   0.00459  -0.0521   0.6517   0.6015
  -2.750  -0.0123   0.01042   0.00464  -0.0523   0.6500   0.6115
  -2.500   0.0160   0.01057   0.00475  -0.0524   0.6482   0.6230
  -2.250   0.0446   0.01066   0.00484  -0.0526   0.6465   0.6319
  -2.000   0.0735   0.01083   0.00499  -0.0530   0.6446   0.6383
  -1.750   0.1022   0.01085   0.00499  -0.0534   0.6433   0.6420
  -1.500   0.1309   0.01086   0.00498  -0.0538   0.6418   0.6449
  -1.250   0.1597   0.01082   0.00497  -0.0543   0.6401   0.6481
  -1.000   0.1886   0.01084   0.00499  -0.0547   0.6385   0.6510
  -0.750   0.2176   0.01085   0.00501  -0.0552   0.6367   0.6540
  -0.500   0.2467   0.01087   0.00501  -0.0557   0.6349   0.6573
  -0.250   0.2759   0.01090   0.00500  -0.0562   0.6332   0.6608
   0.000   0.3052   0.01094   0.00499  -0.0567   0.6317   0.6638
   0.250   0.3346   0.01093   0.00499  -0.0573   0.6303   0.6672
   0.500   0.3639   0.01100   0.00506  -0.0578   0.6289   0.6704
   0.750   0.3930   0.01117   0.00523  -0.0583   0.6271   0.6737
   1.000   0.4210   0.01121   0.00530  -0.0587   0.6258   0.6774
   1.250   0.4489   0.01127   0.00538  -0.0590   0.6241   0.6813
   1.500   0.4769   0.01131   0.00545  -0.0594   0.6223   0.6850
   1.750   0.5050   0.01135   0.00555  -0.0597   0.6206   0.6887
   2.000   0.5333   0.01142   0.00565  -0.0601   0.6190   0.6925
   2.250   0.5619   0.01149   0.00574  -0.0605   0.6173   0.6966
   2.500   0.5908   0.01154   0.00579  -0.0611   0.6156   0.7008
   2.750   0.6200   0.01157   0.00583  -0.0616   0.6141   0.7048
   3.000   0.6492   0.01163   0.00592  -0.0621   0.6126   0.7090
   3.250   0.6785   0.01176   0.00607  -0.0627   0.6111   0.7137
   3.500   0.7067   0.01197   0.00630  -0.0631   0.6093   0.7187
   3.750   0.7328   0.01206   0.00645  -0.0632   0.6076   0.7235
   4.000   0.7588   0.01213   0.00663  -0.0632   0.6057   0.7282
   4.250   0.7852   0.01223   0.00680  -0.0633   0.6036   0.7333
   4.500   0.8125   0.01231   0.00692  -0.0635   0.6015   0.7387
   4.750   0.8406   0.01236   0.00700  -0.0639   0.5994   0.7439
   5.000   0.8692   0.01236   0.00706  -0.0643   0.5974   0.7492
   5.250   0.8990   0.01238   0.00710  -0.0649   0.5954   0.7550
   5.500   0.9298   0.01252   0.00722  -0.0657   0.5929   0.7611
   5.750   0.9517   0.01253   0.00738  -0.0650   0.5897   0.7672
   6.000   0.9754   0.01251   0.00746  -0.0645   0.5859   0.7738
   6.250   1.0028   0.01243   0.00740  -0.0646   0.5821   0.7807
   6.500   1.0333   0.01220   0.00717  -0.0652   0.5776   0.7867
   6.750   1.0542   0.01215   0.00721  -0.0641   0.5718   0.7938
   7.000   1.0764   0.01201   0.00712  -0.0633   0.5653   0.8014
   7.250   1.1041   0.01185   0.00695  -0.0633   0.5592   0.8081
   7.500   1.1157   0.01185   0.00709  -0.0606   0.5517   0.8171
   7.750   1.1350   0.01176   0.00700  -0.0592   0.5436   0.8254
   8.000   1.1435   0.01187   0.00725  -0.0559   0.5363   0.8354
   8.250   1.1508   0.01193   0.00735  -0.0523   0.5282   0.8457
   8.500   1.1539   0.01224   0.00775  -0.0483   0.5192   0.8580
   8.750   1.1571   0.01257   0.00813  -0.0444   0.5085   0.8707
   9.000   1.1593   0.01304   0.00867  -0.0406   0.4967   0.8857
   9.250   1.1597   0.01363   0.00934  -0.0366   0.4829   0.9045
   9.500   1.1571   0.01443   0.01017  -0.0325   0.4651   0.9316
   9.750   1.1706   0.01605   0.01174  -0.0334   0.4308   0.9705
  10.000   1.1605   0.01816   0.01368  -0.0304   0.3969   1.0000
  10.250   1.1416   0.02061   0.01595  -0.0261   0.3654   1.0000
  10.500   1.1263   0.02304   0.01822  -0.0225   0.3364   1.0000
  10.750   1.1104   0.02572   0.02074  -0.0191   0.3064   1.0000
  11.000   1.0971   0.02840   0.02327  -0.0162   0.2779   1.0000
  11.250   1.0859   0.03106   0.02578  -0.0136   0.2504   1.0000
  11.500   1.0779   0.03358   0.02816  -0.0115   0.2222   1.0000
  11.750   1.0700   0.03621   0.03062  -0.0095   0.1934   1.0000
  12.000   1.0640   0.03876   0.03301  -0.0078   0.1662   1.0000
  12.250   1.0589   0.04130   0.03537  -0.0063   0.1380   1.0000
  12.500   1.0528   0.04399   0.03786  -0.0048   0.1076   1.0000
  12.750   1.0453   0.04685   0.04050  -0.0034   0.0763   1.0000
  13.000   1.0409   0.04954   0.04301  -0.0022   0.0527   1.0000
  13.250   1.0420   0.05184   0.04522  -0.0014   0.0420   1.0000
  13.500   1.0464   0.05391   0.04726  -0.0008   0.0376   1.0000
  13.750   1.0525   0.05586   0.04922  -0.0003   0.0340   1.0000
  14.000   1.0574   0.05798   0.05136   0.0001   0.0322   1.0000
  14.250   1.0650   0.05987   0.05330   0.0004   0.0308   1.0000
  14.500   1.0708   0.06194   0.05539   0.0007   0.0293   1.0000
  14.750   1.0733   0.06441   0.05788   0.0009   0.0283   1.0000
  15.000   1.0810   0.06637   0.05990   0.0011   0.0273   1.0000
  15.250   1.0876   0.06848   0.06206   0.0011   0.0265   1.0000
  15.500   1.0930   0.07075   0.06438   0.0012   0.0260   1.0000
  15.750   1.0977   0.07310   0.06676   0.0012   0.0253   1.0000
  16.000   1.1011   0.07563   0.06932   0.0011   0.0249   1.0000
  16.250   1.1007   0.07859   0.07231   0.0011   0.0243   1.0000
  16.500   1.1082   0.08073   0.07452   0.0009   0.0239   1.0000
  16.750   1.1135   0.08315   0.07700   0.0007   0.0237   1.0000
  17.000   1.1197   0.08547   0.07938   0.0004   0.0233   1.0000
  17.250   1.1256   0.08785   0.08181   0.0000   0.0228   1.0000
  17.500   1.1305   0.09034   0.08435  -0.0003   0.0224   1.0000
  17.750   1.1367   0.09267   0.08673  -0.0008   0.0221   1.0000
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