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NACA 65(4)-421 a=0.5 (naca654421a05-il) Xfoil prediction polar at RE=1,000,000 Ncrit=5


Details Polar file
Airfoil: NACA 65(4)-421 a=0.5 (naca654421a05-il)
Reynolds number: 1,000,000
Max Cl/Cd: 117.64 at α=6.25°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-naca654421a05-il-1000000-n5.txt
Download as CSV file: xf-naca654421a05-il-1000000-n5.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 =     1.000 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -1.0026   0.07077   0.06626  -0.0834   0.7999   0.0184
 -19.500  -0.9996   0.06795   0.06335  -0.0847   0.7936   0.0187
 -19.250  -0.9988   0.06496   0.06026  -0.0859   0.7885   0.0187
 -19.000  -0.9968   0.06217   0.05738  -0.0871   0.7828   0.0188
 -18.750  -0.9950   0.05944   0.05455  -0.0880   0.7775   0.0190
 -18.500  -0.9878   0.05735   0.05239  -0.0888   0.7723   0.0193
 -18.250  -0.9852   0.05483   0.04978  -0.0896   0.7680   0.0193
 -18.000  -0.9809   0.05255   0.04741  -0.0902   0.7632   0.0195
 -17.750  -0.9727   0.05071   0.04549  -0.0907   0.7581   0.0197
 -17.500  -0.9665   0.04873   0.04342  -0.0911   0.7536   0.0199
 -17.250  -0.9604   0.04678   0.04140  -0.0914   0.7495   0.0200
 -17.000  -0.9531   0.04499   0.03953  -0.0916   0.7448   0.0201
 -16.750  -0.9443   0.04339   0.03784  -0.0917   0.7399   0.0202
 -16.500  -0.9370   0.04170   0.03606  -0.0918   0.7350   0.0203
 -16.250  -0.9275   0.04021   0.03451  -0.0918   0.7313   0.0204
 -16.000  -0.9235   0.03833   0.03257  -0.0916   0.7268   0.0207
 -15.750  -0.9158   0.03681   0.03098  -0.0914   0.7226   0.0208
 -15.500  -0.9064   0.03545   0.02958  -0.0912   0.7184   0.0210
 -15.250  -0.8984   0.03400   0.02807  -0.0908   0.7151   0.0211
 -15.000  -0.8864   0.03289   0.02693  -0.0906   0.7116   0.0214
 -14.750  -0.8755   0.03172   0.02571  -0.0902   0.7078   0.0216
 -14.500  -0.8642   0.03063   0.02456  -0.0897   0.7039   0.0217
 -14.250  -0.8530   0.02956   0.02343  -0.0892   0.7002   0.0219
 -14.000  -0.8414   0.02854   0.02235  -0.0886   0.6970   0.0221
 -13.750  -0.8298   0.02752   0.02129  -0.0880   0.6937   0.0223
 -13.500  -0.8176   0.02656   0.02029  -0.0874   0.6901   0.0224
 -13.250  -0.8038   0.02573   0.01941  -0.0868   0.6862   0.0227
 -13.000  -0.7902   0.02492   0.01854  -0.0861   0.6825   0.0229
 -12.750  -0.7753   0.02419   0.01775  -0.0855   0.6794   0.0233
 -12.500  -0.7626   0.02332   0.01685  -0.0847   0.6769   0.0234
 -12.250  -0.7481   0.02259   0.01607  -0.0840   0.6740   0.0236
 -12.000  -0.7336   0.02187   0.01530  -0.0832   0.6709   0.0237
 -11.750  -0.7186   0.02120   0.01458  -0.0824   0.6679   0.0239
 -11.500  -0.7069   0.02038   0.01371  -0.0812   0.6649   0.0240
 -11.250  -0.6953   0.01958   0.01287  -0.0800   0.6621   0.0243
 -11.000  -0.6815   0.01889   0.01215  -0.0789   0.6599   0.0244
 -10.750  -0.6673   0.01824   0.01147  -0.0778   0.6573   0.0247
 -10.500  -0.6525   0.01765   0.01085  -0.0767   0.6546   0.0249
 -10.250  -0.6372   0.01710   0.01027  -0.0755   0.6517   0.0251
 -10.000  -0.6216   0.01659   0.00973  -0.0744   0.6489   0.0253
  -9.750  -0.6058   0.01612   0.00922  -0.0732   0.6463   0.0256
  -9.500  -0.5896   0.01567   0.00874  -0.0720   0.6441   0.0259
  -9.250  -0.5732   0.01523   0.00828  -0.0708   0.6423   0.0261
  -9.000  -0.5566   0.01483   0.00786  -0.0695   0.6403   0.0264
  -8.750  -0.5402   0.01444   0.00744  -0.0681   0.6382   0.0267
  -8.500  -0.5237   0.01409   0.00707  -0.0666   0.6361   0.0270
  -8.250  -0.5079   0.01378   0.00673  -0.0650   0.6339   0.0273
  -8.000  -0.4920   0.01356   0.00647  -0.0632   0.6317   0.0275
  -7.750  -0.4745   0.01335   0.00622  -0.0617   0.6294   0.0278
  -7.500  -0.4551   0.01308   0.00592  -0.0606   0.6271   0.0284
  -7.250  -0.4340   0.01281   0.00566  -0.0597   0.6256   0.0289
  -7.000  -0.4117   0.01258   0.00542  -0.0590   0.6239   0.0296
  -6.750  -0.3887   0.01236   0.00520  -0.0585   0.6222   0.0302
  -6.500  -0.3649   0.01217   0.00499  -0.0580   0.6205   0.0311
  -6.250  -0.3406   0.01199   0.00480  -0.0577   0.6187   0.0319
  -6.000  -0.3165   0.01178   0.00459  -0.0573   0.6169   0.0330
  -5.750  -0.2921   0.01159   0.00439  -0.0570   0.6152   0.0345
  -5.500  -0.2670   0.01143   0.00422  -0.0568   0.6134   0.0360
  -5.250  -0.2418   0.01127   0.00405  -0.0566   0.6114   0.0380
  -5.000  -0.2165   0.01110   0.00388  -0.0564   0.6095   0.0415
  -4.500  -0.1673   0.01059   0.00351  -0.0559   0.6069   0.0696
  -4.250  -0.1434   0.01027   0.00331  -0.0555   0.6054   0.0971
  -4.000  -0.1201   0.00990   0.00311  -0.0551   0.6039   0.1359
  -3.750  -0.0962   0.00955   0.00292  -0.0548   0.6024   0.1776
  -3.500  -0.0737   0.00908   0.00269  -0.0543   0.6009   0.2389
  -3.250  -0.0525   0.00850   0.00243  -0.0536   0.5993   0.3230
  -3.000  -0.0322   0.00782   0.00215  -0.0529   0.5978   0.4278
  -2.750  -0.0071   0.00753   0.00207  -0.0527   0.5962   0.4914
  -2.500   0.0209   0.00746   0.00205  -0.0529   0.5943   0.5142
  -2.250   0.0492   0.00742   0.00204  -0.0532   0.5925   0.5326
  -2.000   0.0778   0.00737   0.00204  -0.0536   0.5914   0.5522
  -1.750   0.1068   0.00734   0.00206  -0.0540   0.5903   0.5658
  -1.500   0.1360   0.00732   0.00206  -0.0544   0.5891   0.5736
  -1.250   0.1654   0.00732   0.00206  -0.0549   0.5878   0.5781
  -1.000   0.1949   0.00732   0.00205  -0.0555   0.5864   0.5809
  -0.750   0.2244   0.00733   0.00205  -0.0560   0.5849   0.5834
  -0.500   0.2539   0.00735   0.00205  -0.0565   0.5834   0.5857
  -0.250   0.2832   0.00737   0.00205  -0.0570   0.5817   0.5883
   0.000   0.3122   0.00738   0.00206  -0.0574   0.5801   0.5914
   0.250   0.3412   0.00740   0.00208  -0.0579   0.5786   0.5943
   0.500   0.3702   0.00743   0.00210  -0.0583   0.5770   0.5972
   0.750   0.3993   0.00747   0.00214  -0.0588   0.5756   0.6000
   1.000   0.4287   0.00748   0.00216  -0.0594   0.5746   0.6027
   1.250   0.4582   0.00751   0.00220  -0.0599   0.5733   0.6053
   1.500   0.4873   0.00752   0.00223  -0.0604   0.5719   0.6085
   1.750   0.5163   0.00753   0.00227  -0.0609   0.5704   0.6119
   2.000   0.5453   0.00755   0.00232  -0.0613   0.5690   0.6153
   2.250   0.5742   0.00758   0.00237  -0.0618   0.5675   0.6186
   2.500   0.6031   0.00762   0.00242  -0.0622   0.5659   0.6217
   2.750   0.6318   0.00767   0.00247  -0.0627   0.5642   0.6245
   3.000   0.6601   0.00771   0.00253  -0.0630   0.5625   0.6278
   3.250   0.6883   0.00776   0.00259  -0.0634   0.5609   0.6315
   3.500   0.7165   0.00782   0.00267  -0.0637   0.5591   0.6353
   3.750   0.7451   0.00786   0.00275  -0.0642   0.5578   0.6393
   4.000   0.7736   0.00790   0.00283  -0.0646   0.5562   0.6431
   4.250   0.8018   0.00793   0.00291  -0.0650   0.5543   0.6470
   4.500   0.8297   0.00796   0.00299  -0.0653   0.5518   0.6514
   4.750   0.8571   0.00801   0.00307  -0.0655   0.5487   0.6558
   5.000   0.8834   0.00809   0.00315  -0.0655   0.5446   0.6600
   5.500   0.9368   0.00820   0.00334  -0.0657   0.5353   0.6684
   5.750   0.9606   0.00830   0.00344  -0.0653   0.5281   0.6733
   6.000   0.9849   0.00839   0.00356  -0.0649   0.5186   0.6783
   6.250   1.0058   0.00855   0.00370  -0.0640   0.5064   0.6829
   6.500   1.0234   0.00875   0.00389  -0.0624   0.4920   0.6887
   6.750   1.0306   0.00907   0.00416  -0.0589   0.4698   0.6950
   7.000   1.0269   0.00964   0.00464  -0.0536   0.4472   0.7012
   7.250   1.0187   0.01055   0.00544  -0.0480   0.4170   0.7076
   7.500   1.0004   0.01197   0.00670  -0.0414   0.3781   0.7150
   7.750   0.9824   0.01367   0.00823  -0.0353   0.3400   0.7218
   8.000   0.9789   0.01493   0.00944  -0.0316   0.3180   0.7289
   8.250   0.9698   0.01655   0.01095  -0.0274   0.2888   0.7369
   8.500   0.9614   0.01825   0.01255  -0.0235   0.2612   0.7442
   9.000   0.9483   0.02172   0.01583  -0.0168   0.2084   0.7618
   9.250   0.9425   0.02354   0.01756  -0.0138   0.1826   0.7714
   9.500   0.9369   0.02546   0.01938  -0.0111   0.1561   0.7821
   9.750   0.9399   0.02691   0.02080  -0.0091   0.1393   0.7932
  10.000   0.9435   0.02838   0.02223  -0.0074   0.1223   0.8037
  10.250   0.9435   0.03011   0.02390  -0.0054   0.1026   0.8161
  10.500   0.9491   0.03150   0.02527  -0.0039   0.0889   0.8284
  10.750   0.9520   0.03311   0.02685  -0.0023   0.0731   0.8425
  11.000   0.9558   0.03464   0.02836  -0.0008   0.0587   0.8601
  11.250   0.9593   0.03614   0.02989   0.0009   0.0456   0.8846
  11.500   0.9678   0.03761   0.03144   0.0016   0.0360   0.9238
  11.750   1.0026   0.03950   0.03337  -0.0037   0.0280   0.9557
  12.250   1.0381   0.04243   0.03632  -0.0057   0.0227   1.0000
  12.500   1.0496   0.04375   0.03764  -0.0053   0.0213   1.0000
  12.750   1.0618   0.04501   0.03891  -0.0049   0.0200   1.0000
  13.000   1.0733   0.04635   0.04027  -0.0045   0.0189   1.0000
  13.250   1.0839   0.04780   0.04172  -0.0041   0.0181   1.0000
  13.500   1.0954   0.04916   0.04310  -0.0038   0.0176   1.0000
  13.750   1.1073   0.05051   0.04447  -0.0035   0.0166   1.0000
  14.000   1.1179   0.05200   0.04598  -0.0032   0.0161   1.0000
  14.250   1.1281   0.05353   0.04753  -0.0029   0.0157   1.0000
  14.500   1.1379   0.05509   0.04911  -0.0026   0.0150   1.0000
  14.750   1.1483   0.05663   0.05067  -0.0024   0.0148   1.0000
  15.000   1.1582   0.05825   0.05233  -0.0022   0.0143   1.0000
  15.250   1.1679   0.05988   0.05399  -0.0020   0.0140   1.0000
  15.500   1.1784   0.06146   0.05560  -0.0019   0.0139   1.0000
  15.750   1.1869   0.06325   0.05742  -0.0018   0.0134   1.0000
  16.000   1.1953   0.06504   0.05925  -0.0017   0.0133   1.0000
  16.250   1.2040   0.06684   0.06107  -0.0016   0.0130   1.0000
  16.500   1.2112   0.06882   0.06309  -0.0016   0.0127   1.0000
  16.750   1.2184   0.07083   0.06514  -0.0016   0.0126   1.0000
  17.000   1.2249   0.07292   0.06726  -0.0016   0.0124   1.0000
  17.250   1.2314   0.07505   0.06944  -0.0017   0.0121   1.0000
  17.500   1.2374   0.07724   0.07168  -0.0019   0.0120   1.0000
  17.750   1.2447   0.07930   0.07378  -0.0021   0.0120   1.0000
  18.000   1.2508   0.08154   0.07607  -0.0023   0.0117   1.0000
  18.250   1.2559   0.08392   0.07851  -0.0026   0.0116   1.0000
  18.500   1.2617   0.08623   0.08088  -0.0030   0.0114   1.0000
  18.750   1.2652   0.08887   0.08357  -0.0034   0.0113   1.0000
  19.000   1.2710   0.09122   0.08596  -0.0038   0.0111   1.0000
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