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LOCKHEED C-141 BL426.57 AIRFOIL (c141c-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: LOCKHEED C-141 BL426.57 AIRFOIL (c141c-il)
Reynolds number: 500,000
Max Cl/Cd: 80.09 at α=3.25°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-c141c-il-500000.txt
Download as CSV file: xf-c141c-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: LOCKHEED C-141 BL426.57 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 =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -12.250  -0.7254   0.06545   0.06281  -0.0592   1.0000   0.0209
 -12.000  -0.7630   0.05546   0.05263  -0.0675   1.0000   0.0206
 -11.750  -0.7967   0.04953   0.04650  -0.0692   1.0000   0.0204
 -11.500  -0.8292   0.04590   0.04269  -0.0660   1.0000   0.0203
 -11.250  -0.8626   0.04397   0.04065  -0.0589   1.0000   0.0203
 -11.000  -0.8932   0.04167   0.03817  -0.0516   1.0000   0.0202
 -10.750  -0.9177   0.03896   0.03522  -0.0451   1.0000   0.0202
 -10.500  -0.9347   0.03623   0.03220  -0.0394   1.0000   0.0203
 -10.250  -0.9436   0.03368   0.02936  -0.0346   1.0000   0.0204
 -10.000  -0.9354   0.03086   0.02614  -0.0330   0.9987   0.0207
  -9.750  -0.9149   0.02851   0.02342  -0.0332   0.9967   0.0210
  -9.500  -0.8901   0.02695   0.02156  -0.0337   0.9950   0.0213
  -9.250  -0.8708   0.02394   0.01824  -0.0337   0.9933   0.0220
  -9.000  -0.8458   0.02286   0.01710  -0.0340   0.9911   0.0226
  -8.750  -0.8182   0.02215   0.01632  -0.0346   0.9891   0.0234
  -8.500  -0.7895   0.02131   0.01537  -0.0354   0.9873   0.0242
  -8.250  -0.7599   0.02033   0.01424  -0.0362   0.9858   0.0250
  -8.000  -0.7291   0.01948   0.01324  -0.0373   0.9846   0.0258
  -7.750  -0.6993   0.01827   0.01188  -0.0382   0.9836   0.0268
  -7.500  -0.6769   0.01739   0.01097  -0.0376   0.9802   0.0279
  -7.250  -0.6488   0.01687   0.01043  -0.0380   0.9777   0.0291
  -7.000  -0.6182   0.01641   0.00991  -0.0388   0.9758   0.0308
  -6.750  -0.5864   0.01598   0.00939  -0.0399   0.9742   0.0323
  -6.500  -0.5563   0.01509   0.00852  -0.0409   0.9728   0.0348
  -6.250  -0.5227   0.01470   0.00810  -0.0424   0.9718   0.0372
  -6.000  -0.4884   0.01432   0.00766  -0.0440   0.9709   0.0395
  -5.750  -0.4701   0.01375   0.00710  -0.0422   0.9657   0.0426
  -5.500  -0.4394   0.01347   0.00681  -0.0430   0.9632   0.0461
  -5.250  -0.4081   0.01298   0.00630  -0.0440   0.9614   0.0502
  -5.000  -0.3743   0.01265   0.00599  -0.0455   0.9600   0.0552
  -4.750  -0.3399   0.01224   0.00558  -0.0471   0.9588   0.0616
  -4.500  -0.3043   0.01197   0.00532  -0.0490   0.9579   0.0688
  -4.250  -0.2701   0.01157   0.00498  -0.0505   0.9569   0.0800
  -4.000  -0.2508   0.01131   0.00478  -0.0488   0.9509   0.0917
  -3.750  -0.2209   0.01098   0.00452  -0.0493   0.9480   0.1119
  -3.500  -0.1898   0.01057   0.00427  -0.0502   0.9459   0.1458
  -3.250  -0.1587   0.01009   0.00403  -0.0512   0.9440   0.2024
  -3.000  -0.1293   0.00945   0.00378  -0.0519   0.9422   0.3001
  -2.750  -0.1126   0.00881   0.00364  -0.0499   0.9359   0.4281
  -2.500  -0.0896   0.00815   0.00350  -0.0490   0.9320   0.5635
  -2.250  -0.0630   0.00774   0.00339  -0.0487   0.9293   0.6516
  -2.000  -0.0344   0.00748   0.00330  -0.0486   0.9272   0.7082
  -1.750  -0.0122   0.00737   0.00331  -0.0472   0.9212   0.7458
  -1.500   0.0148   0.00722   0.00324  -0.0467   0.9173   0.7794
  -1.250   0.0434   0.00706   0.00316  -0.0466   0.9143   0.8064
  -1.000   0.0717   0.00696   0.00310  -0.0464   0.9111   0.8307
  -0.750   0.0962   0.00691   0.00313  -0.0453   0.9051   0.8521
  -0.500   0.1241   0.00683   0.00309  -0.0450   0.9010   0.8722
  -0.250   0.1531   0.00677   0.00305  -0.0448   0.8977   0.8916
   0.000   0.1770   0.00683   0.00316  -0.0435   0.8913   0.9126
   0.250   0.2045   0.00685   0.00320  -0.0427   0.8855   0.9309
   0.500   0.2322   0.00685   0.00319  -0.0421   0.8782   0.9429
   0.750   0.2641   0.00679   0.00309  -0.0425   0.8684   0.9490
   1.000   0.2918   0.00673   0.00300  -0.0420   0.8551   0.9571
   1.250   0.3269   0.00671   0.00296  -0.0433   0.8427   0.9610
   1.500   0.3611   0.00672   0.00294  -0.0445   0.8307   0.9661
   1.750   0.3947   0.00673   0.00293  -0.0455   0.8174   0.9714
   2.000   0.4342   0.00674   0.00292  -0.0480   0.8009   0.9739
   2.250   0.4713   0.00678   0.00291  -0.0499   0.7804   0.9776
   2.500   0.5031   0.00687   0.00292  -0.0506   0.7543   0.9832
   2.750   0.5398   0.00698   0.00290  -0.0525   0.7187   0.9855
   3.000   0.5743   0.00719   0.00293  -0.0540   0.6723   0.9888
   3.250   0.6055   0.00756   0.00303  -0.0548   0.6066   0.9930
   3.500   0.6356   0.00820   0.00320  -0.0557   0.5020   0.9962
   3.750   0.6639   0.00916   0.00351  -0.0566   0.3638   0.9995
   4.000   0.6815   0.00986   0.00379  -0.0550   0.2740   1.0000
   4.250   0.6970   0.01042   0.00404  -0.0529   0.2109   1.0000
   4.500   0.7135   0.01086   0.00428  -0.0509   0.1696   1.0000
   4.750   0.7305   0.01125   0.00451  -0.0490   0.1393   1.0000
   5.000   0.7473   0.01164   0.00477  -0.0470   0.1156   1.0000
   5.250   0.7648   0.01198   0.00503  -0.0450   0.0984   1.0000
   5.500   0.7821   0.01232   0.00531  -0.0431   0.0851   1.0000
   5.750   0.7991   0.01270   0.00562  -0.0410   0.0743   1.0000
   6.000   0.8171   0.01301   0.00591  -0.0391   0.0665   1.0000
   6.250   0.8348   0.01336   0.00626  -0.0372   0.0600   1.0000
   6.500   0.8519   0.01378   0.00663  -0.0352   0.0542   1.0000
   6.750   0.8699   0.01416   0.00703  -0.0333   0.0501   1.0000
   7.000   0.8881   0.01454   0.00741  -0.0315   0.0461   1.0000
   7.250   0.9046   0.01509   0.00796  -0.0294   0.0425   1.0000
   7.500   0.9244   0.01544   0.00834  -0.0280   0.0396   1.0000
   7.750   0.9420   0.01600   0.00888  -0.0262   0.0367   1.0000
   8.000   0.9592   0.01664   0.00957  -0.0243   0.0347   1.0000
   8.250   0.9789   0.01711   0.01009  -0.0229   0.0329   1.0000
   8.500   0.9980   0.01762   0.01063  -0.0215   0.0313   1.0000
   8.750   1.0139   0.01846   0.01146  -0.0196   0.0297   1.0000
   9.000   1.0306   0.01931   0.01238  -0.0179   0.0285   1.0000
   9.250   1.0496   0.01985   0.01300  -0.0165   0.0275   1.0000
   9.500   1.0673   0.02046   0.01367  -0.0149   0.0265   1.0000
   9.750   1.0842   0.02113   0.01438  -0.0132   0.0256   1.0000
  10.000   1.1004   0.02189   0.01516  -0.0115   0.0248   1.0000
  10.250   1.1147   0.02310   0.01643  -0.0097   0.0240   1.0000
  10.500   1.1300   0.02456   0.01800  -0.0081   0.0234   1.0000
  10.750   1.1462   0.02542   0.01898  -0.0064   0.0230   1.0000
  11.000   1.1615   0.02643   0.02011  -0.0048   0.0226   1.0000
  11.250   1.1760   0.02747   0.02127  -0.0031   0.0220   1.0000
  11.500   1.1894   0.02849   0.02240  -0.0013   0.0215   1.0000
  11.750   1.2016   0.02951   0.02352   0.0006   0.0210   1.0000
  12.000   1.2130   0.03056   0.02466   0.0025   0.0205   1.0000
  12.250   1.2232   0.03177   0.02595   0.0043   0.0202   1.0000
  12.500   1.2322   0.03316   0.02743   0.0062   0.0198   1.0000
  12.750   1.2385   0.03506   0.02944   0.0082   0.0195   1.0000
  13.000   1.2374   0.03820   0.03280   0.0107   0.0191   1.0000
  13.250   1.2349   0.04059   0.03542   0.0132   0.0190   1.0000
  13.500   1.2326   0.04269   0.03774   0.0155   0.0189   1.0000
  13.750   1.2277   0.04518   0.04044   0.0175   0.0187   1.0000
  14.000   1.2200   0.04806   0.04353   0.0192   0.0186   1.0000
  14.250   1.2092   0.05142   0.04712   0.0205   0.0185   1.0000
  14.500   1.1951   0.05538   0.05130   0.0211   0.0184   1.0000
  14.750   1.1782   0.05995   0.05610   0.0210   0.0184   1.0000
  15.000   1.1584   0.06535   0.06171   0.0198   0.0183   1.0000
  15.250   1.1353   0.07176   0.06834   0.0174   0.0183   1.0000
  15.500   1.1090   0.07953   0.07632   0.0135   0.0184   1.0000
  15.750   1.0784   0.08913   0.08613   0.0077   0.0185   1.0000
  16.000   1.0409   0.10142   0.09862  -0.0003   0.0187   1.0000
  16.250   0.9840   0.11941   0.11680  -0.0115   0.0190   1.0000
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