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NACA 66-021 AIRFOIL (n66021-il) Xfoil prediction polar at RE=500,000 Ncrit=5


Details Polar file
Airfoil: NACA 66-021 AIRFOIL (n66021-il)
Reynolds number: 500,000
Max Cl/Cd: 54.12 at α=5°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-n66021-il-500000-n5.txt
Download as CSV file: xf-n66021-il-500000-n5.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 =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -0.9528   0.08661   0.08127  -0.0735   0.8693   0.0149
 -19.500  -0.9526   0.08341   0.07795  -0.0746   0.8641   0.0150
 -19.250  -0.9524   0.08029   0.07470  -0.0756   0.8589   0.0151
 -19.000  -0.9510   0.07737   0.07165  -0.0765   0.8538   0.0152
 -18.500  -0.9465   0.07190   0.06595  -0.0778   0.8451   0.0154
 -18.250  -0.9428   0.06938   0.06332  -0.0784   0.8407   0.0154
 -18.000  -0.9400   0.06686   0.06072  -0.0788   0.8365   0.0155
 -17.750  -0.9366   0.06447   0.05823  -0.0791   0.8324   0.0156
 -17.500  -0.9327   0.06214   0.05581  -0.0793   0.8290   0.0157
 -17.250  -0.9284   0.05988   0.05348  -0.0795   0.8254   0.0158
 -17.000  -0.9234   0.05774   0.05127  -0.0796   0.8217   0.0160
 -16.750  -0.9166   0.05586   0.04931  -0.0796   0.8180   0.0161
 -16.500  -0.9103   0.05396   0.04733  -0.0795   0.8145   0.0164
 -16.250  -0.9026   0.05225   0.04553  -0.0794   0.8114   0.0165
 -16.000  -0.8957   0.05043   0.04365  -0.0792   0.8083   0.0167
 -15.750  -0.8874   0.04881   0.04196  -0.0789   0.8050   0.0168
 -15.500  -0.8790   0.04724   0.04032  -0.0786   0.8017   0.0171
 -15.250  -0.8698   0.04578   0.03879  -0.0782   0.7985   0.0174
 -15.000  -0.8607   0.04436   0.03727  -0.0777   0.7954   0.0176
 -14.750  -0.8508   0.04302   0.03585  -0.0772   0.7928   0.0179
 -14.500  -0.8404   0.04169   0.03447  -0.0767   0.7905   0.0179
 -14.250  -0.8300   0.04040   0.03312  -0.0762   0.7880   0.0182
 -14.000  -0.8199   0.03913   0.03179  -0.0756   0.7854   0.0187
 -13.750  -0.8090   0.03795   0.03057  -0.0749   0.7829   0.0190
 -13.500  -0.7981   0.03680   0.02936  -0.0742   0.7805   0.0193
 -13.250  -0.7860   0.03576   0.02827  -0.0736   0.7782   0.0196
 -13.000  -0.7724   0.03484   0.02729  -0.0729   0.7760   0.0202
 -12.750  -0.7589   0.03392   0.02632  -0.0723   0.7740   0.0207
 -12.500  -0.7451   0.03301   0.02537  -0.0717   0.7722   0.0214
 -12.250  -0.7306   0.03217   0.02448  -0.0711   0.7703   0.0219
 -12.000  -0.7177   0.03124   0.02354  -0.0703   0.7683   0.0225
 -11.750  -0.7040   0.03038   0.02266  -0.0695   0.7664   0.0234
 -11.500  -0.6894   0.02960   0.02184  -0.0688   0.7645   0.0240
 -11.250  -0.6742   0.02887   0.02106  -0.0680   0.7627   0.0249
 -11.000  -0.6580   0.02821   0.02035  -0.0674   0.7610   0.0257
 -10.750  -0.6439   0.02744   0.01956  -0.0665   0.7593   0.0269
 -10.500  -0.6285   0.02677   0.01886  -0.0657   0.7577   0.0280
 -10.000  -0.5962   0.02552   0.01755  -0.0642   0.7549   0.0310
  -9.750  -0.5797   0.02491   0.01694  -0.0634   0.7535   0.0326
  -9.500  -0.5632   0.02432   0.01635  -0.0626   0.7521   0.0352
  -9.250  -0.5473   0.02371   0.01574  -0.0617   0.7507   0.0384
  -9.000  -0.5314   0.02311   0.01516  -0.0608   0.7493   0.0429
  -8.750  -0.5158   0.02251   0.01460  -0.0599   0.7480   0.0501
  -8.500  -0.5010   0.02189   0.01403  -0.0588   0.7465   0.0610
  -8.250  -0.4888   0.02116   0.01340  -0.0573   0.7451   0.0800
  -8.000  -0.4774   0.02042   0.01277  -0.0557   0.7436   0.1025
  -7.750  -0.4709   0.01950   0.01206  -0.0535   0.7421   0.1433
  -7.500  -0.4631   0.01868   0.01139  -0.0513   0.7408   0.1786
  -7.250  -0.4565   0.01784   0.01072  -0.0489   0.7395   0.2157
  -7.000  -0.4519   0.01696   0.01001  -0.0462   0.7383   0.2557
  -6.750  -0.4516   0.01595   0.00921  -0.0428   0.7371   0.2989
  -6.500  -0.4519   0.01495   0.00841  -0.0392   0.7360   0.3387
  -6.000  -0.4598   0.01292   0.00674  -0.0305   0.7334   0.4173
  -5.750  -0.4693   0.01189   0.00589  -0.0249   0.7320   0.4566
  -5.500  -0.4875   0.01080   0.00502  -0.0174   0.7304   0.5030
  -5.250  -0.5105   0.01000   0.00445  -0.0084   0.7289   0.5474
  -5.000  -0.5275   0.00975   0.00455   0.0003   0.7274   0.6120
  -4.750  -0.5118   0.00981   0.00464   0.0026   0.7264   0.6435
  -4.500  -0.4905   0.00989   0.00470   0.0036   0.7256   0.6577
  -4.250  -0.4703   0.00994   0.00467   0.0049   0.7247   0.6689
  -4.000  -0.4420   0.01012   0.00487   0.0047   0.7240   0.6761
  -3.750  -0.4182   0.01020   0.00488   0.0052   0.7232   0.6828
  -3.500  -0.3917   0.01024   0.00488   0.0052   0.7225   0.6869
  -3.250  -0.3618   0.01036   0.00499   0.0046   0.7218   0.6901
  -3.000  -0.3329   0.01046   0.00507   0.0042   0.7211   0.6935
  -2.750  -0.3053   0.01051   0.00507   0.0039   0.7202   0.6962
  -2.500  -0.2787   0.01051   0.00504   0.0038   0.7194   0.6985
  -2.250  -0.2528   0.01050   0.00499   0.0038   0.7188   0.7008
  -2.000  -0.2261   0.01051   0.00498   0.0036   0.7181   0.7032
  -1.750  -0.1966   0.01056   0.00504   0.0030   0.7174   0.7051
  -1.500  -0.1677   0.01060   0.00509   0.0025   0.7168   0.7067
  -1.250  -0.1392   0.01063   0.00512   0.0020   0.7160   0.7079
  -1.000  -0.1112   0.01062   0.00512   0.0016   0.7153   0.7088
  -0.750  -0.0834   0.01061   0.00510   0.0012   0.7146   0.7096
  -0.500  -0.0556   0.01061   0.00509   0.0008   0.7138   0.7103
  -0.250  -0.0278   0.01061   0.00510   0.0004   0.7131   0.7113
   0.000   0.0000   0.01062   0.00511   0.0000   0.7122   0.7122
   0.250   0.0278   0.01061   0.00510  -0.0004   0.7112   0.7131
   0.500   0.0556   0.01061   0.00509  -0.0008   0.7103   0.7138
   0.750   0.0834   0.01061   0.00510  -0.0012   0.7096   0.7146
   1.000   0.1112   0.01062   0.00512  -0.0016   0.7088   0.7153
   1.250   0.1392   0.01063   0.00512  -0.0020   0.7079   0.7160
   1.500   0.1677   0.01060   0.00509  -0.0025   0.7067   0.7167
   1.750   0.1966   0.01056   0.00504  -0.0030   0.7051   0.7174
   2.000   0.2261   0.01051   0.00498  -0.0036   0.7032   0.7181
   2.250   0.2528   0.01051   0.00499  -0.0038   0.7009   0.7188
   2.500   0.2786   0.01051   0.00503  -0.0038   0.6985   0.7194
   2.750   0.3053   0.01051   0.00507  -0.0039   0.6962   0.7202
   3.000   0.3329   0.01046   0.00506  -0.0042   0.6935   0.7211
   3.250   0.3618   0.01036   0.00499  -0.0046   0.6902   0.7218
   3.500   0.3916   0.01024   0.00488  -0.0052   0.6869   0.7225
   3.750   0.4183   0.01020   0.00488  -0.0052   0.6829   0.7232
   4.000   0.4419   0.01012   0.00486  -0.0047   0.6760   0.7240
   4.250   0.4708   0.00992   0.00463  -0.0050   0.6682   0.7247
   4.500   0.4906   0.00990   0.00470  -0.0037   0.6580   0.7256
   4.750   0.5119   0.00982   0.00464  -0.0026   0.6438   0.7264
   5.000   0.5277   0.00975   0.00455  -0.0004   0.6128   0.7274
   5.250   0.5129   0.00998   0.00445   0.0079   0.5495   0.7288
   5.500   0.4883   0.01078   0.00501   0.0173   0.5039   0.7304
   5.750   0.4714   0.01183   0.00585   0.0245   0.4589   0.7319
   6.000   0.4601   0.01291   0.00673   0.0304   0.4173   0.7334
   6.250   0.4550   0.01392   0.00757   0.0351   0.3790   0.7347
   6.500   0.4515   0.01497   0.00842   0.0393   0.3376   0.7360
   6.750   0.4503   0.01600   0.00924   0.0430   0.2957   0.7371
   7.000   0.4535   0.01691   0.00998   0.0460   0.2579   0.7382
   7.250   0.4576   0.01780   0.01069   0.0488   0.2179   0.7395
   7.500   0.4624   0.01871   0.01141   0.0514   0.1756   0.7408
   7.750   0.4703   0.01953   0.01207   0.0535   0.1411   0.7421
   8.000   0.4786   0.02037   0.01274   0.0556   0.1050   0.7436
   8.250   0.4877   0.02122   0.01343   0.0575   0.0765   0.7451
   8.500   0.5016   0.02186   0.01401   0.0587   0.0615   0.7465
   8.750   0.5157   0.02252   0.01460   0.0599   0.0488   0.7479
   9.000   0.5314   0.02312   0.01516   0.0608   0.0419   0.7493
   9.250   0.5475   0.02370   0.01573   0.0617   0.0376   0.7507
   9.500   0.5632   0.02432   0.01634   0.0626   0.0345   0.7521
   9.750   0.5802   0.02489   0.01692   0.0633   0.0326   0.7535
  10.000   0.5965   0.02551   0.01753   0.0641   0.0306   0.7548
  10.500   0.6291   0.02675   0.01883   0.0656   0.0280   0.7577
  10.750   0.6444   0.02743   0.01954   0.0664   0.0267   0.7593
  11.000   0.6590   0.02816   0.02030   0.0673   0.0255   0.7610
  11.250   0.6747   0.02885   0.02104   0.0680   0.0249   0.7627
  11.500   0.6901   0.02957   0.02180   0.0687   0.0241   0.7645
  11.750   0.7047   0.03035   0.02262   0.0694   0.0232   0.7664
  12.000   0.7187   0.03119   0.02348   0.0701   0.0224   0.7684
  12.250   0.7319   0.03211   0.02442   0.0709   0.0217   0.7703
  12.500   0.7458   0.03298   0.02534   0.0716   0.0214   0.7722
  12.750   0.7592   0.03392   0.02631   0.0723   0.0210   0.7740
  13.000   0.7729   0.03482   0.02728   0.0729   0.0204   0.7761
  13.250   0.7859   0.03579   0.02830   0.0736   0.0197   0.7782
  13.500   0.7984   0.03680   0.02936   0.0742   0.0192   0.7805
  13.750   0.8106   0.03786   0.03047   0.0748   0.0190   0.7829
  14.000   0.8206   0.03910   0.03175   0.0755   0.0186   0.7855
  14.250   0.8309   0.04035   0.03306   0.0761   0.0184   0.7880
  14.500   0.8416   0.04163   0.03440   0.0766   0.0180   0.7905
  14.750   0.8518   0.04296   0.03579   0.0771   0.0178   0.7929
  15.000   0.8621   0.04427   0.03718   0.0776   0.0176   0.7956
  15.250   0.8707   0.04573   0.03873   0.0781   0.0172   0.7985
  15.500   0.8803   0.04715   0.04023   0.0785   0.0171   0.8018
  15.750   0.8891   0.04868   0.04183   0.0788   0.0169   0.8052
  16.000   0.8964   0.05039   0.04361   0.0791   0.0167   0.8084
  16.250   0.9049   0.05206   0.04534   0.0792   0.0166   0.8115
  16.500   0.9119   0.05385   0.04720   0.0794   0.0162   0.8148
  16.750   0.9197   0.05560   0.04904   0.0795   0.0160   0.8183
  17.000   0.9244   0.05767   0.05119   0.0795   0.0160   0.8219
  17.250   0.9300   0.05974   0.05334   0.0795   0.0159   0.8257
  17.500   0.9349   0.06193   0.05560   0.0792   0.0157   0.8293
  17.750   0.9384   0.06430   0.05805   0.0790   0.0157   0.8329
  18.000   0.9408   0.06680   0.06064   0.0788   0.0155   0.8369
  18.250   0.9446   0.06920   0.06314   0.0784   0.0154   0.8412
  18.500   0.9479   0.07174   0.06578   0.0778   0.0154   0.8456
  19.000   0.9532   0.07715   0.07144   0.0764   0.0152   0.8546
  19.250   0.9541   0.08012   0.07453   0.0756   0.0151   0.8597
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