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NACA 4421 (naca4421-il) Xfoil prediction polar at RE=1,000,000 Ncrit=5


Details Polar file
Airfoil: NACA 4421 (naca4421-il)
Reynolds number: 1,000,000
Max Cl/Cd: 93.21 at α=5.75°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-naca4421-il-1000000-n5.txt
Download as CSV file: xf-naca4421-il-1000000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NACA 4421                                       
  
 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  -0.9711   0.08521   0.08128  -0.0896   1.0000   0.0371
 -19.500  -0.9981   0.07864   0.07460  -0.0926   1.0000   0.0373
 -19.250  -1.0324   0.07136   0.06719  -0.0959   1.0000   0.0375
 -19.000  -1.0643   0.06472   0.06044  -0.0986   1.0000   0.0376
 -18.750  -1.0957   0.05846   0.05405  -0.1008   1.0000   0.0378
 -18.500  -1.1250   0.05282   0.04830  -0.1024   1.0000   0.0380
 -18.250  -1.1463   0.04782   0.04319  -0.1041   0.9996   0.0382
 -18.000  -1.1511   0.04331   0.03857  -0.1075   0.9982   0.0385
 -17.750  -1.1505   0.03948   0.03465  -0.1107   0.9965   0.0389
 -17.500  -1.1451   0.03622   0.03131  -0.1136   0.9948   0.0394
 -17.250  -1.1355   0.03350   0.02850  -0.1162   0.9934   0.0399
 -17.000  -1.1223   0.03115   0.02608  -0.1187   0.9922   0.0404
 -16.750  -1.1101   0.02918   0.02404  -0.1202   0.9892   0.0408
 -16.500  -1.0963   0.02747   0.02228  -0.1215   0.9856   0.0413
 -16.250  -1.0829   0.02570   0.02045  -0.1228   0.9819   0.0419
 -16.000  -1.0664   0.02420   0.01890  -0.1240   0.9788   0.0426
 -15.750  -1.0553   0.02299   0.01765  -0.1236   0.9725   0.0432
 -15.500  -1.0402   0.02192   0.01653  -0.1236   0.9670   0.0439
 -15.250  -1.0258   0.02102   0.01558  -0.1230   0.9613   0.0446
 -15.000  -1.0114   0.02024   0.01474  -0.1221   0.9543   0.0453
 -14.750  -0.9969   0.01947   0.01393  -0.1211   0.9481   0.0461
 -14.500  -0.9834   0.01875   0.01317  -0.1198   0.9405   0.0470
 -14.250  -0.9682   0.01813   0.01249  -0.1185   0.9332   0.0479
 -14.000  -0.9518   0.01758   0.01191  -0.1172   0.9261   0.0488
 -13.750  -0.9346   0.01710   0.01138  -0.1159   0.9183   0.0497
 -13.500  -0.9169   0.01667   0.01089  -0.1146   0.9111   0.0506
 -13.250  -0.9011   0.01621   0.01040  -0.1129   0.9023   0.0517
 -13.000  -0.8838   0.01583   0.00996  -0.1113   0.8942   0.0529
 -12.750  -0.8632   0.01547   0.00956  -0.1103   0.8855   0.0541
 -12.250  -0.8205   0.01477   0.00878  -0.1084   0.8683   0.0570
 -12.000  -0.7985   0.01443   0.00840  -0.1075   0.8595   0.0589
 -11.500  -0.7527   0.01380   0.00771  -0.1061   0.8436   0.0632
 -11.250  -0.7291   0.01352   0.00740  -0.1054   0.8358   0.0658
 -11.000  -0.7053   0.01322   0.00709  -0.1048   0.8280   0.0686
 -10.750  -0.6811   0.01297   0.00680  -0.1042   0.8195   0.0718
 -10.500  -0.6567   0.01271   0.00653  -0.1036   0.8120   0.0752
 -10.250  -0.6315   0.01249   0.00629  -0.1031   0.8036   0.0787
 -10.000  -0.6068   0.01227   0.00605  -0.1026   0.7954   0.0825
  -9.750  -0.5807   0.01208   0.00585  -0.1022   0.7877   0.0859
  -9.500  -0.5554   0.01188   0.00563  -0.1017   0.7788   0.0893
  -9.250  -0.5292   0.01173   0.00545  -0.1014   0.7709   0.0922
  -9.000  -0.5030   0.01157   0.00526  -0.1010   0.7620   0.0946
  -8.750  -0.4774   0.01142   0.00508  -0.1005   0.7530   0.0974
  -8.500  -0.4505   0.01128   0.00492  -0.1003   0.7449   0.1000
  -8.250  -0.4242   0.01117   0.00476  -0.0999   0.7356   0.1021
  -8.000  -0.3979   0.01101   0.00459  -0.0996   0.7269   0.1049
  -7.750  -0.3715   0.01090   0.00445  -0.0992   0.7166   0.1074
  -7.500  -0.3447   0.01081   0.00431  -0.0989   0.7078   0.1096
  -7.250  -0.3180   0.01069   0.00417  -0.0986   0.6984   0.1120
  -7.000  -0.2919   0.01059   0.00404  -0.0981   0.6888   0.1147
  -6.750  -0.2650   0.01049   0.00391  -0.0979   0.6785   0.1173
  -6.500  -0.2386   0.01044   0.00380  -0.0975   0.6681   0.1195
  -6.250  -0.2117   0.01033   0.00368  -0.0972   0.6585   0.1224
  -5.750  -0.1583   0.01018   0.00348  -0.0965   0.6399   0.1286
  -5.500  -0.1321   0.01013   0.00339  -0.0961   0.6292   0.1320
  -5.250  -0.1054   0.01003   0.00329  -0.0958   0.6199   0.1373
  -5.000  -0.0790   0.00999   0.00321  -0.0954   0.6094   0.1422
  -4.750  -0.0523   0.00989   0.00312  -0.0951   0.6014   0.1482
  -4.500  -0.0253   0.00984   0.00305  -0.0948   0.5926   0.1529
  -4.250   0.0010   0.00978   0.00298  -0.0944   0.5844   0.1585
  -4.000   0.0282   0.00972   0.00292  -0.0942   0.5762   0.1646
  -3.750   0.0543   0.00968   0.00287  -0.0937   0.5670   0.1719
  -3.250   0.1081   0.00956   0.00277  -0.0932   0.5518   0.1908
  -2.750   0.1620   0.00949   0.00272  -0.0926   0.5389   0.2093
  -2.500   0.1890   0.00945   0.00271  -0.0924   0.5322   0.2180
  -2.250   0.2155   0.00948   0.00270  -0.0920   0.5249   0.2251
  -2.000   0.2429   0.00945   0.00269  -0.0918   0.5191   0.2318
  -1.750   0.2701   0.00944   0.00269  -0.0916   0.5129   0.2391
  -1.500   0.2970   0.00947   0.00269  -0.0913   0.5070   0.2441
  -1.250   0.3238   0.00948   0.00269  -0.0910   0.5018   0.2494
  -1.000   0.3513   0.00946   0.00270  -0.0908   0.4969   0.2554
  -0.750   0.3780   0.00949   0.00271  -0.0905   0.4903   0.2607
  -0.500   0.4037   0.00956   0.00274  -0.0900   0.4825   0.2651
  -0.250   0.4307   0.00954   0.00275  -0.0898   0.4762   0.2733
   0.000   0.4568   0.00958   0.00278  -0.0893   0.4689   0.2809
   0.250   0.4823   0.00963   0.00282  -0.0888   0.4628   0.2886
   0.500   0.5093   0.00961   0.00285  -0.0886   0.4587   0.2997
   0.750   0.5356   0.00960   0.00288  -0.0883   0.4537   0.3154
   1.000   0.5609   0.00959   0.00294  -0.0877   0.4481   0.3400
   1.250   0.5857   0.00960   0.00300  -0.0871   0.4428   0.3664
   1.500   0.6121   0.00957   0.00306  -0.0868   0.4392   0.3923
   1.750   0.6376   0.00956   0.00312  -0.0864   0.4343   0.4192
   2.000   0.6616   0.00958   0.00319  -0.0856   0.4291   0.4418
   2.250   0.6847   0.00963   0.00328  -0.0846   0.4241   0.4616
   2.500   0.7094   0.00963   0.00335  -0.0840   0.4204   0.4841
   2.750   0.7338   0.00965   0.00344  -0.0833   0.4158   0.5071
   3.000   0.7578   0.00970   0.00354  -0.0825   0.4106   0.5299
   3.250   0.7818   0.00979   0.00367  -0.0818   0.4057   0.5549
   3.500   0.8074   0.00984   0.00380  -0.0814   0.4018   0.5824
   4.000   0.8577   0.00998   0.00409  -0.0805   0.3916   0.6387
   4.250   0.8815   0.01011   0.00427  -0.0798   0.3863   0.6667
   4.500   0.9070   0.01019   0.00442  -0.0794   0.3822   0.6918
   4.750   0.9318   0.01030   0.00459  -0.0789   0.3764   0.7141
   5.000   0.9544   0.01049   0.00480  -0.0780   0.3684   0.7373
   5.250   0.9781   0.01061   0.00500  -0.0773   0.3611   0.7653
   5.500   0.9995   0.01081   0.00525  -0.0762   0.3515   0.7996
   5.750   1.0207   0.01095   0.00551  -0.0750   0.3422   0.8450
   6.000   1.0382   0.01119   0.00582  -0.0731   0.3310   0.8920
   6.250   1.0555   0.01142   0.00611  -0.0711   0.3208   0.9362
   6.500   1.0780   0.01174   0.00642  -0.0703   0.3107   0.9753
   6.750   1.1052   0.01207   0.00670  -0.0707   0.3009   1.0000
   7.000   1.1252   0.01241   0.00700  -0.0695   0.2931   1.0000
   7.250   1.1442   0.01280   0.00734  -0.0683   0.2843   1.0000
   7.500   1.1639   0.01318   0.00769  -0.0671   0.2765   1.0000
   7.750   1.1830   0.01360   0.00807  -0.0660   0.2687   1.0000
   8.000   1.2022   0.01403   0.00847  -0.0649   0.2625   1.0000
   8.250   1.2222   0.01443   0.00886  -0.0639   0.2562   1.0000
   8.500   1.2397   0.01495   0.00934  -0.0626   0.2493   1.0000
   8.750   1.2591   0.01540   0.00978  -0.0616   0.2433   1.0000
   9.000   1.2769   0.01593   0.01028  -0.0604   0.2365   1.0000
   9.250   1.2948   0.01648   0.01081  -0.0593   0.2310   1.0000
   9.500   1.3130   0.01702   0.01134  -0.0583   0.2251   1.0000
   9.750   1.3286   0.01769   0.01198  -0.0570   0.2183   1.0000
  10.000   1.3456   0.01831   0.01259  -0.0559   0.2119   1.0000
  10.250   1.3590   0.01915   0.01338  -0.0544   0.2031   1.0000
  10.500   1.3733   0.01995   0.01416  -0.0531   0.1944   1.0000
  10.750   1.3861   0.02087   0.01504  -0.0516   0.1862   1.0000
  11.000   1.3975   0.02187   0.01601  -0.0501   0.1777   1.0000
  11.250   1.4100   0.02285   0.01697  -0.0488   0.1699   1.0000
  11.500   1.4193   0.02407   0.01815  -0.0473   0.1612   1.0000
  11.750   1.4272   0.02541   0.01945  -0.0457   0.1516   1.0000
  12.000   1.4353   0.02679   0.02080  -0.0442   0.1430   1.0000
  12.250   1.4439   0.02817   0.02216  -0.0429   0.1364   1.0000
  12.500   1.4515   0.02967   0.02365  -0.0416   0.1302   1.0000
  12.750   1.4600   0.03116   0.02514  -0.0405   0.1249   1.0000
  13.000   1.4665   0.03283   0.02679  -0.0393   0.1196   1.0000
  13.250   1.4747   0.03440   0.02838  -0.0383   0.1156   1.0000
  13.500   1.4818   0.03610   0.03009  -0.0373   0.1119   1.0000
  13.750   1.4889   0.03785   0.03185  -0.0364   0.1089   1.0000
  14.000   1.4974   0.03952   0.03356  -0.0357   0.1066   1.0000
  14.250   1.5046   0.04130   0.03537  -0.0350   0.1039   1.0000
  14.500   1.5089   0.04340   0.03749  -0.0342   0.1014   1.0000
  14.750   1.5154   0.04531   0.03943  -0.0336   0.0993   1.0000
  15.000   1.5219   0.04728   0.04144  -0.0331   0.0974   1.0000
  15.250   1.5267   0.04943   0.04363  -0.0325   0.0954   1.0000
  15.500   1.5305   0.05169   0.04592  -0.0320   0.0934   1.0000
  15.750   1.5328   0.05413   0.04840  -0.0316   0.0917   1.0000
  16.000   1.5386   0.05624   0.05055  -0.0312   0.0902   1.0000
  16.250   1.5415   0.05869   0.05305  -0.0309   0.0885   1.0000
  16.500   1.5436   0.06123   0.05564  -0.0306   0.0867   1.0000
  16.750   1.5440   0.06399   0.05843  -0.0304   0.0850   1.0000
  17.000   1.5448   0.06671   0.06120  -0.0302   0.0835   1.0000
  17.250   1.5476   0.06922   0.06377  -0.0301   0.0820   1.0000
  17.500   1.5475   0.07211   0.06671  -0.0300   0.0803   1.0000
  17.750   1.5474   0.07498   0.06961  -0.0300   0.0786   1.0000
  18.000   1.5439   0.07832   0.07299  -0.0301   0.0769   1.0000
  18.250   1.5459   0.08096   0.07569  -0.0301   0.0754   1.0000
  18.500   1.5438   0.08416   0.07894  -0.0303   0.0736   1.0000
  18.750   1.5421   0.08729   0.08211  -0.0305   0.0716   1.0000
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