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NACA 66-021 AIRFOIL (n66021-il) Xfoil prediction polar at RE=200,000 Ncrit=9


Details Polar file
Airfoil: NACA 66-021 AIRFOIL (n66021-il)
Reynolds number: 200,000
Max Cl/Cd: 25.48 at α=8.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-n66021-il-200000.txt
Download as CSV file: xf-n66021-il-200000.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 =     0.200 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -18.250  -0.3077   0.15583   0.15234  -0.0473   0.9005   0.0734
 -18.000  -0.3441   0.15018   0.14672  -0.0540   0.9014   0.0776
 -17.750  -0.7034   0.10512   0.10105  -0.0816   1.0000   0.0463
 -17.500  -0.6322   0.11177   0.10796  -0.0786   0.9807   0.0476
 -17.250  -0.7330   0.09192   0.08754  -0.0892   0.9756   0.0442
 -17.000  -0.7596   0.08427   0.07963  -0.0932   0.9694   0.0434
 -16.750  -0.7888   0.07713   0.07216  -0.0961   0.9637   0.0426
 -16.500  -0.8273   0.06980   0.06436  -0.0973   0.9581   0.0415
 -16.250  -0.8837   0.06339   0.05728  -0.0958   0.9505   0.0405
 -16.000  -0.9086   0.06094   0.05443  -0.0939   0.9425   0.0399
 -15.750  -0.9040   0.05823   0.05151  -0.0933   0.9360   0.0398
 -15.500  -0.9021   0.05561   0.04866  -0.0924   0.9303   0.0397
 -15.250  -0.9005   0.05328   0.04609  -0.0911   0.9244   0.0398
 -15.000  -0.8988   0.05128   0.04383  -0.0895   0.9191   0.0398
 -14.750  -0.8793   0.04896   0.04132  -0.0896   0.9150   0.0401
 -14.500  -0.8512   0.04712   0.03937  -0.0903   0.9108   0.0404
 -14.250  -0.8236   0.04572   0.03790  -0.0907   0.9068   0.0409
 -14.000  -0.8015   0.04463   0.03674  -0.0906   0.9031   0.0418
 -13.750  -0.7798   0.04362   0.03565  -0.0906   0.8997   0.0427
 -13.500  -0.7578   0.04260   0.03453  -0.0907   0.8962   0.0436
 -13.250  -0.7343   0.04168   0.03348  -0.0907   0.8930   0.0445
 -13.000  -0.7133   0.04084   0.03247  -0.0903   0.8899   0.0454
 -12.750  -0.6773   0.04037   0.03204  -0.0911   0.8877   0.0466
 -12.500  -0.6533   0.03986   0.03157  -0.0909   0.8853   0.0482
 -12.250  -0.6318   0.03924   0.03095  -0.0908   0.8828   0.0497
 -12.000  -0.6121   0.03856   0.03021  -0.0906   0.8802   0.0515
 -11.750  -0.5943   0.03780   0.02949  -0.0901   0.8776   0.0538
 -11.500  -0.5797   0.03700   0.02872  -0.0894   0.8750   0.0561
 -11.250  -0.5653   0.03624   0.02788  -0.0886   0.8726   0.0593
 -11.000  -0.5556   0.03523   0.02692  -0.0873   0.8704   0.0622
 -10.750  -0.5448   0.03435   0.02602  -0.0860   0.8685   0.0665
 -10.500  -0.5371   0.03333   0.02502  -0.0846   0.8665   0.0709
 -10.250  -0.5263   0.03238   0.02407  -0.0836   0.8644   0.0778
 -10.000  -0.5218   0.03112   0.02292  -0.0820   0.8620   0.0897
  -9.750  -0.5221   0.02969   0.02174  -0.0796   0.8593   0.1167
  -9.500  -0.5349   0.02774   0.02035  -0.0759   0.8568   0.1928
  -9.250  -0.5503   0.02593   0.01903  -0.0716   0.8544   0.2730
  -9.000  -0.5628   0.02448   0.01794  -0.0672   0.8523   0.3350
  -8.750  -0.5744   0.02329   0.01710  -0.0625   0.8505   0.3969
  -8.500  -0.5771   0.02266   0.01686  -0.0584   0.8488   0.4617
  -8.250  -0.5133   0.02526   0.01996  -0.0613   0.8483   0.5440
  -8.000  -0.4669   0.02716   0.02187  -0.0630   0.8473   0.5696
  -7.750  -0.4406   0.02798   0.02265  -0.0628   0.8459   0.5862
  -6.750  -0.3221   0.03367   0.02809  -0.0619   0.8408   0.6330
  -6.500  -0.2877   0.03472   0.02907  -0.0625   0.8394   0.6378
  -6.250  -0.2457   0.03579   0.03005  -0.0643   0.8385   0.6399
  -6.000  -0.2416   0.03588   0.03010  -0.0616   0.8370   0.6525
  -5.750  -0.1992   0.03680   0.03095  -0.0636   0.8364   0.6540
  -5.500  -0.1596   0.03761   0.03169  -0.0652   0.8358   0.6562
  -5.250  -0.1598   0.03768   0.03174  -0.0619   0.8345   0.6690
  -5.000  -0.1186   0.03838   0.03238  -0.0639   0.8340   0.6705
  -4.750  -0.0803   0.03899   0.03293  -0.0656   0.8335   0.6726
  -4.500  -0.0870   0.03909   0.03301  -0.0613   0.8324   0.6859
  -4.250  -0.0453   0.03956   0.03344  -0.0634   0.8318   0.6873
  -4.000  -0.0069   0.04003   0.03387  -0.0651   0.8311   0.6893
  -3.750   0.0247   0.04060   0.03442  -0.0661   0.8305   0.6928
  -3.500   0.0042   0.04173   0.03560  -0.0601   0.8287   0.7045
  -3.250  -0.1488   0.04562   0.03969  -0.0303   0.8227   0.7208
  -3.000  -0.1218   0.04633   0.04038  -0.0301   0.8213   0.7225
  -2.750  -0.0911   0.04692   0.04096  -0.0307   0.8198   0.7249
  -2.500  -0.0909   0.04775   0.04180  -0.0264   0.8187   0.7303
  -2.250  -0.1004   0.04783   0.04186  -0.0208   0.8164   0.7405
  -2.000  -0.1710   0.04834   0.04238  -0.0049   0.8149   0.7560
  -1.750  -0.0889   0.04815   0.04213  -0.0147   0.8135   0.7565
  -1.500  -0.0102   0.04791   0.04184  -0.0240   0.8128   0.7572
  -1.250   0.0519   0.04791   0.04183  -0.0304   0.8117   0.7585
  -0.250  -0.1639   0.04932   0.04330   0.0237   0.7861   0.7933
   0.000  -0.1076   0.04954   0.04353   0.0182   0.7824   0.7941
   0.250  -0.0444   0.04967   0.04365   0.0116   0.7798   0.7951
   0.500   0.0254   0.04971   0.04371   0.0041   0.7779   0.7965
   0.750   0.0950   0.04976   0.04377  -0.0034   0.7766   0.7986
   1.000   0.1561   0.04968   0.04372  -0.0095   0.7755   0.8016
   1.250   0.2052   0.04949   0.04355  -0.0136   0.7746   0.8052
   1.500   0.0104   0.04793   0.04187   0.0239   0.7572   0.8129
   1.750   0.0901   0.04817   0.04216   0.0145   0.7565   0.8136
   2.000   0.1755   0.04840   0.04244   0.0042   0.7559   0.8150
   2.250   0.3250   0.05211   0.04639  -0.0139   0.7564   0.8671
   2.500   0.4047   0.05046   0.04482  -0.0238   0.7560   0.8685
   2.750   0.0902   0.04690   0.04094   0.0309   0.7249   0.8198
   3.000   0.1237   0.04633   0.04039   0.0298   0.7225   0.8213
   3.250   0.1475   0.04558   0.03965   0.0305   0.7208   0.8227
   3.500  -0.0044   0.04171   0.03558   0.0601   0.7045   0.8287
   3.750   0.0281   0.04089   0.03476   0.0589   0.7030   0.8294
   4.000   0.0067   0.04004   0.03387   0.0651   0.6893   0.8312
   4.250   0.0454   0.03956   0.03343   0.0634   0.6873   0.8318
   4.500   0.0870   0.03909   0.03301   0.0613   0.6859   0.8324
   5.000   0.7949   0.03263   0.02747  -0.0396   0.7036   0.8638
   5.250   0.1459   0.03794   0.03198   0.0637   0.6658   0.8347
   5.500   0.1594   0.03762   0.03171   0.0652   0.6562   0.8358
   5.750   0.1995   0.03679   0.03093   0.0635   0.6540   0.8364
   6.000   0.2129   0.03655   0.03074   0.0650   0.6444   0.8376
   6.250   0.2454   0.03582   0.03008   0.0643   0.6399   0.8384
   6.500   0.2870   0.03477   0.02912   0.0626   0.6379   0.8394
   6.750   0.3232   0.03359   0.02801   0.0617   0.6330   0.8407
   7.500   0.4156   0.02890   0.02351   0.0624   0.5984   0.8445
   7.750   0.4479   0.02764   0.02232   0.0620   0.5891   0.8458
   8.000   0.4669   0.02716   0.02187   0.0630   0.5692   0.8474
   8.250   0.5164   0.02509   0.01978   0.0610   0.5429   0.8483
   8.500   0.5772   0.02265   0.01683   0.0584   0.4594   0.8488
   8.750   0.5746   0.02329   0.01709   0.0624   0.3965   0.8504
   9.000   0.5631   0.02447   0.01793   0.0672   0.3346   0.8523
   9.250   0.5492   0.02598   0.01905   0.0717   0.2688   0.8545
   9.500   0.5353   0.02773   0.02034   0.0758   0.1923   0.8568
   9.750   0.5229   0.02966   0.02172   0.0795   0.1172   0.8594
  10.000   0.5219   0.03113   0.02292   0.0819   0.0891   0.8620
  10.250   0.5278   0.03230   0.02400   0.0834   0.0781   0.8645
  10.500   0.5378   0.03330   0.02498   0.0845   0.0707   0.8666
  10.750   0.5456   0.03432   0.02599   0.0859   0.0660   0.8685
  11.000   0.5562   0.03520   0.02689   0.0872   0.0618   0.8705
  11.250   0.5660   0.03622   0.02786   0.0885   0.0593   0.8726
  11.500   0.5807   0.03696   0.02867   0.0893   0.0563   0.8751
  11.750   0.5951   0.03777   0.02945   0.0900   0.0537   0.8776
  12.000   0.6129   0.03853   0.03017   0.0905   0.0515   0.8802
  12.250   0.6323   0.03923   0.03093   0.0907   0.0494   0.8830
  12.500   0.6544   0.03982   0.03153   0.0908   0.0481   0.8854
  12.750   0.6777   0.04033   0.03202   0.0910   0.0469   0.8878
  13.000   0.7154   0.04077   0.03238   0.0901   0.0455   0.8900
  13.250   0.7369   0.04163   0.03342   0.0904   0.0446   0.8930
  13.500   0.7599   0.04258   0.03451   0.0905   0.0436   0.8963
  13.750   0.7800   0.04357   0.03560   0.0905   0.0426   0.8999
  14.000   0.8025   0.04459   0.03669   0.0905   0.0418   0.9033
  14.250   0.8232   0.04566   0.03784   0.0907   0.0410   0.9070
  14.500   0.8518   0.04708   0.03933   0.0902   0.0404   0.9109
  14.750   0.8847   0.04914   0.04149   0.0890   0.0400   0.9149
  15.000   0.8976   0.05126   0.04382   0.0896   0.0398   0.9194
  15.250   0.9046   0.05338   0.04617   0.0907   0.0398   0.9245
  15.500   0.9044   0.05566   0.04870   0.0921   0.0398   0.9306
  15.750   0.9082   0.05819   0.05145   0.0930   0.0398   0.9362
  16.000   0.9076   0.06068   0.05418   0.0939   0.0400   0.9433
  16.250   0.8982   0.06347   0.05726   0.0948   0.0401   0.9504
  16.500   0.8327   0.06961   0.06414   0.0969   0.0413   0.9588
  16.750   0.7937   0.07684   0.07185   0.0956   0.0422   0.9644
  17.000   0.7619   0.08440   0.07976   0.0927   0.0435   0.9701
  17.250   0.7386   0.09170   0.08731   0.0888   0.0443   0.9766
  17.500   0.7202   0.09872   0.09452   0.0845   0.0449   0.9884
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