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NACA 66(4)-221 (naca664221-il) Xfoil prediction polar at RE=1,000,000 Ncrit=5


Details Polar file
Airfoil: NACA 66(4)-221 (naca664221-il)
Reynolds number: 1,000,000
Max Cl/Cd: 91.74 at α=4.5°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-naca664221-il-1000000-n5.txt
Download as CSV file: xf-naca664221-il-1000000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NACA 66(4)-221                                  
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     1.000 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -0.9605   0.06708   0.06205  -0.1052   0.8285   0.0139
 -19.500  -0.9612   0.06417   0.05903  -0.1059   0.8241   0.0138
 -19.250  -0.9577   0.06172   0.05650  -0.1066   0.8206   0.0140
 -19.000  -0.9548   0.05929   0.05398  -0.1071   0.8168   0.0140
 -18.750  -0.9506   0.05706   0.05166  -0.1075   0.8127   0.0142
 -18.500  -0.9471   0.05483   0.04933  -0.1078   0.8087   0.0142
 -18.250  -0.9454   0.05249   0.04690  -0.1078   0.8049   0.0142
 -18.000  -0.9384   0.05065   0.04498  -0.1080   0.8019   0.0143
 -17.750  -0.9330   0.04874   0.04300  -0.1080   0.7986   0.0143
 -17.500  -0.9250   0.04711   0.04130  -0.1079   0.7951   0.0144
 -17.250  -0.9189   0.04538   0.03948  -0.1077   0.7916   0.0145
 -17.000  -0.9127   0.04370   0.03773  -0.1073   0.7882   0.0145
 -16.750  -0.9069   0.04201   0.03598  -0.1069   0.7854   0.0148
 -16.500  -0.8992   0.04051   0.03442  -0.1065   0.7828   0.0148
 -16.250  -0.8911   0.03908   0.03294  -0.1060   0.7800   0.0149
 -16.000  -0.8811   0.03784   0.03164  -0.1055   0.7771   0.0151
 -15.750  -0.8701   0.03668   0.03043  -0.1050   0.7741   0.0152
 -15.500  -0.8598   0.03552   0.02921  -0.1044   0.7710   0.0154
 -15.000  -0.8362   0.03345   0.02705  -0.1033   0.7659   0.0156
 -14.750  -0.8240   0.03245   0.02601  -0.1027   0.7636   0.0158
 -14.500  -0.8108   0.03155   0.02507  -0.1021   0.7612   0.0160
 -14.250  -0.7971   0.03069   0.02417  -0.1015   0.7587   0.0163
 -14.000  -0.7837   0.02983   0.02326  -0.1008   0.7563   0.0164
 -13.750  -0.7702   0.02901   0.02238  -0.1001   0.7540   0.0165
 -13.500  -0.7550   0.02830   0.02162  -0.0994   0.7517   0.0169
 -13.250  -0.7405   0.02757   0.02085  -0.0987   0.7495   0.0171
 -13.000  -0.7259   0.02681   0.02006  -0.0981   0.7481   0.0172
 -12.750  -0.7104   0.02613   0.01934  -0.0974   0.7466   0.0174
 -12.500  -0.6958   0.02540   0.01860  -0.0966   0.7448   0.0178
 -12.250  -0.6803   0.02474   0.01793  -0.0959   0.7430   0.0182
 -12.000  -0.6644   0.02413   0.01729  -0.0951   0.7412   0.0185
 -11.750  -0.6487   0.02351   0.01665  -0.0944   0.7394   0.0189
 -11.500  -0.6316   0.02298   0.01609  -0.0937   0.7378   0.0193
 -11.250  -0.6146   0.02246   0.01554  -0.0930   0.7360   0.0198
 -11.000  -0.5972   0.02197   0.01501  -0.0923   0.7343   0.0203
 -10.750  -0.5807   0.02144   0.01446  -0.0914   0.7325   0.0211
 -10.500  -0.5639   0.02092   0.01394  -0.0906   0.7313   0.0217
 -10.250  -0.5461   0.02044   0.01345  -0.0899   0.7303   0.0221
 -10.000  -0.5278   0.01999   0.01300  -0.0893   0.7292   0.0229
  -9.750  -0.5095   0.01956   0.01255  -0.0886   0.7280   0.0236
  -9.500  -0.4912   0.01913   0.01211  -0.0879   0.7268   0.0244
  -9.250  -0.4738   0.01867   0.01165  -0.0870   0.7255   0.0252
  -9.000  -0.4558   0.01826   0.01124  -0.0862   0.7243   0.0264
  -8.750  -0.4370   0.01788   0.01085  -0.0855   0.7231   0.0276
  -8.500  -0.4185   0.01750   0.01047  -0.0847   0.7219   0.0287
  -8.250  -0.4005   0.01711   0.01007  -0.0838   0.7207   0.0301
  -8.000  -0.3822   0.01674   0.00970  -0.0830   0.7195   0.0317
  -7.750  -0.3641   0.01637   0.00933  -0.0821   0.7184   0.0339
  -7.500  -0.3455   0.01603   0.00898  -0.0812   0.7172   0.0364
  -7.250  -0.3276   0.01567   0.00863  -0.0802   0.7160   0.0402
  -7.000  -0.3110   0.01527   0.00827  -0.0790   0.7147   0.0475
  -6.750  -0.2956   0.01481   0.00788  -0.0777   0.7139   0.0599
  -6.500  -0.2807   0.01435   0.00750  -0.0762   0.7130   0.0759
  -6.250  -0.2676   0.01383   0.00708  -0.0745   0.7122   0.0967
  -6.000  -0.2588   0.01319   0.00660  -0.0720   0.7112   0.1309
  -5.750  -0.2503   0.01256   0.00613  -0.0695   0.7103   0.1644
  -5.500  -0.2450   0.01187   0.00561  -0.0664   0.7094   0.2043
  -5.250  -0.2395   0.01122   0.00512  -0.0633   0.7084   0.2410
  -5.000  -0.2334   0.01062   0.00465  -0.0601   0.7074   0.2735
  -4.750  -0.2321   0.00995   0.00414  -0.0561   0.7063   0.3123
  -4.500  -0.2369   0.00925   0.00361  -0.0507   0.7052   0.3543
  -4.250  -0.2494   0.00877   0.00328  -0.0434   0.7041   0.3953
  -4.000  -0.2561   0.00804   0.00285  -0.0374   0.7030   0.4694
  -3.750  -0.2601   0.00710   0.00237  -0.0319   0.7020   0.5723
  -3.500  -0.2407   0.00690   0.00237  -0.0306   0.7012   0.6366
  -3.250  -0.2131   0.00692   0.00238  -0.0308   0.7005   0.6528
  -3.000  -0.1848   0.00695   0.00242  -0.0312   0.6998   0.6614
  -2.750  -0.1560   0.00700   0.00241  -0.0317   0.6991   0.6678
  -2.500  -0.1272   0.00703   0.00247  -0.0321   0.6983   0.6737
  -2.250  -0.0980   0.00708   0.00251  -0.0327   0.6976   0.6780
  -2.000  -0.0687   0.00714   0.00254  -0.0333   0.6969   0.6818
  -1.750  -0.0396   0.00717   0.00254  -0.0338   0.6965   0.6843
  -1.500  -0.0104   0.00718   0.00254  -0.0344   0.6961   0.6862
  -1.250   0.0190   0.00717   0.00255  -0.0350   0.6957   0.6887
  -1.000   0.0483   0.00718   0.00257  -0.0357   0.6951   0.6904
  -0.750   0.0776   0.00719   0.00258  -0.0363   0.6945   0.6916
  -0.500   0.1069   0.00719   0.00258  -0.0369   0.6939   0.6923
  -0.250   0.1363   0.00719   0.00258  -0.0376   0.6933   0.6929
   0.000   0.1657   0.00720   0.00259  -0.0382   0.6928   0.6935
   0.250   0.1950   0.00721   0.00260  -0.0389   0.6922   0.6941
   0.500   0.2244   0.00722   0.00262  -0.0395   0.6916   0.6946
   0.750   0.2537   0.00723   0.00264  -0.0401   0.6910   0.6952
   1.000   0.2830   0.00724   0.00266  -0.0408   0.6904   0.6958
   1.250   0.3121   0.00725   0.00268  -0.0414   0.6893   0.6964
   1.500   0.3410   0.00723   0.00266  -0.0419   0.6871   0.6970
   1.750   0.3697   0.00721   0.00264  -0.0424   0.6846   0.6977
   2.000   0.3987   0.00722   0.00263  -0.0429   0.6822   0.6984
   2.250   0.4282   0.00726   0.00266  -0.0436   0.6800   0.6991
   2.500   0.4558   0.00724   0.00268  -0.0438   0.6779   0.6997
   2.750   0.4833   0.00723   0.00270  -0.0441   0.6749   0.7003
   3.000   0.5112   0.00722   0.00271  -0.0444   0.6720   0.7009
   3.250   0.5391   0.00722   0.00273  -0.0447   0.6692   0.7014
   3.500   0.5666   0.00722   0.00271  -0.0449   0.6649   0.7019
   3.750   0.5929   0.00722   0.00274  -0.0449   0.6597   0.7024
   4.000   0.6187   0.00722   0.00276  -0.0448   0.6524   0.7028
   4.250   0.6434   0.00723   0.00277  -0.0445   0.6446   0.7033
   4.500   0.6651   0.00725   0.00278  -0.0435   0.6290   0.7043
   4.750   0.6694   0.00745   0.00284  -0.0390   0.5827   0.7054
   5.000   0.6409   0.00808   0.00324  -0.0280   0.5354   0.7069
   5.250   0.6236   0.00896   0.00395  -0.0199   0.4940   0.7082
   5.500   0.6062   0.01005   0.00485  -0.0124   0.4501   0.7094
   5.750   0.5956   0.01113   0.00577  -0.0064   0.4104   0.7107
   6.000   0.5851   0.01234   0.00678  -0.0007   0.3645   0.7119
   6.250   0.5782   0.01353   0.00776   0.0042   0.3216   0.7131
   6.500   0.5802   0.01447   0.00855   0.0076   0.2877   0.7142
   6.750   0.5814   0.01547   0.00938   0.0110   0.2505   0.7153
   7.000   0.5841   0.01645   0.01017   0.0142   0.2107   0.7164
   7.250   0.5877   0.01745   0.01098   0.0170   0.1731   0.7174
   7.500   0.5972   0.01823   0.01164   0.0190   0.1456   0.7183
   7.750   0.6016   0.01927   0.01246   0.0217   0.1060   0.7193
   8.000   0.6132   0.02003   0.01311   0.0233   0.0859   0.7201
   8.250   0.6259   0.02076   0.01375   0.0247   0.0678   0.7210
   8.500   0.6406   0.02139   0.01432   0.0259   0.0549   0.7223
   8.750   0.6547   0.02207   0.01495   0.0271   0.0437   0.7238
   9.000   0.6703   0.02269   0.01556   0.0281   0.0371   0.7253
   9.250   0.6867   0.02328   0.01613   0.0290   0.0327   0.7265
   9.500   0.7036   0.02385   0.01670   0.0297   0.0297   0.7278
   9.750   0.7208   0.02443   0.01728   0.0305   0.0275   0.7291
  10.000   0.7375   0.02504   0.01791   0.0312   0.0257   0.7305
  10.250   0.7544   0.02566   0.01854   0.0319   0.0244   0.7319
  10.500   0.7708   0.02631   0.01918   0.0326   0.0228   0.7332
  10.750   0.7883   0.02691   0.01980   0.0332   0.0219   0.7346
  11.000   0.8052   0.02755   0.02044   0.0338   0.0203   0.7360
  11.250   0.8210   0.02827   0.02117   0.0345   0.0195   0.7373
  11.500   0.8371   0.02898   0.02190   0.0351   0.0184   0.7385
  11.750   0.8536   0.02968   0.02261   0.0357   0.0174   0.7395
  12.000   0.8693   0.03042   0.02337   0.0364   0.0166   0.7414
  12.250   0.8849   0.03116   0.02413   0.0370   0.0162   0.7433
  12.500   0.9002   0.03195   0.02496   0.0376   0.0156   0.7452
  12.750   0.9152   0.03277   0.02581   0.0382   0.0153   0.7472
  13.000   0.9299   0.03362   0.02669   0.0388   0.0145   0.7490
  13.250   0.9445   0.03449   0.02759   0.0394   0.0140   0.7510
  13.500   0.9592   0.03537   0.02850   0.0400   0.0139   0.7530
  13.750   0.9723   0.03639   0.02954   0.0406   0.0136   0.7548
  14.000   0.9855   0.03740   0.03059   0.0412   0.0131   0.7566
  14.250   0.9996   0.03838   0.03160   0.0416   0.0127   0.7581
  14.500   1.0127   0.03941   0.03269   0.0422   0.0127   0.7605
  14.750   1.0246   0.04056   0.03388   0.0427   0.0125   0.7630
  15.000   1.0366   0.04172   0.03510   0.0432   0.0123   0.7655
  15.250   1.0494   0.04284   0.03626   0.0437   0.0120   0.7681
  15.500   1.0602   0.04414   0.03762   0.0442   0.0119   0.7706
  15.750   1.0708   0.04548   0.03900   0.0446   0.0117   0.7731
  16.000   1.0815   0.04684   0.04040   0.0450   0.0116   0.7754
  16.250   1.0905   0.04838   0.04198   0.0454   0.0114   0.7775
  16.500   1.0984   0.05001   0.04367   0.0458   0.0111   0.7805
  16.750   1.1067   0.05165   0.04538   0.0461   0.0110   0.7835
  17.000   1.1142   0.05340   0.04720   0.0464   0.0111   0.7868
  17.250   1.1201   0.05534   0.04920   0.0467   0.0109   0.7901
  17.500   1.1285   0.05709   0.05103   0.0467   0.0109   0.7932
  17.750   1.1369   0.05887   0.05286   0.0467   0.0108   0.7961
  18.000   1.1411   0.06110   0.05519   0.0467   0.0107   0.7996
  18.250   1.1464   0.06326   0.05743   0.0467   0.0107   0.8031
  18.500   1.1524   0.06540   0.05965   0.0465   0.0106   0.8071
  18.750   1.1573   0.06770   0.06202   0.0462   0.0105   0.8108
  19.000   1.1612   0.07016   0.06457   0.0459   0.0104   0.8140
  19.250   1.1621   0.07301   0.06751   0.0454   0.0104   0.8172
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