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SP4721LA (sp4721la-po) Xfoil prediction polar at RE=200,000 Ncrit=9


Details Polar file
Airfoil: SP4721LA (sp4721la-po)
Reynolds number: 200,000
Max Cl/Cd: 63.45 at α=9°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-sp4721la-po-200000.txt
Download as CSV file: xf-sp4721la-po-200000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: SP4721LA                                        
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     0.200 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -16.000  -0.6315   0.09790   0.09334  -0.0780   1.0007   0.0180
 -15.750  -0.6577   0.09100   0.08628  -0.0803   1.0007   0.0179
 -15.500  -0.6807   0.08515   0.08027  -0.0817   1.0007   0.0178
 -15.250  -0.7012   0.08007   0.07502  -0.0825   1.0007   0.0178
 -15.000  -0.7195   0.07560   0.07037  -0.0828   1.0007   0.0178
 -14.750  -0.7348   0.07179   0.06639  -0.0825   1.0007   0.0179
 -14.500  -0.7475   0.06852   0.06296  -0.0818   1.0007   0.0179
 -14.250  -0.7582   0.06565   0.05996  -0.0808   1.0007   0.0180
 -14.000  -0.7657   0.06336   0.05760  -0.0794   1.0007   0.0182
 -13.750  -0.7717   0.06139   0.05559  -0.0779   1.0007   0.0184
 -13.500  -0.7775   0.05958   0.05373  -0.0762   1.0007   0.0186
 -13.250  -0.7827   0.05797   0.05209  -0.0744   1.0007   0.0188
 -13.000  -0.7879   0.05647   0.05054  -0.0724   1.0007   0.0190
 -12.750  -0.7933   0.05508   0.04910  -0.0703   1.0007   0.0193
 -12.500  -0.7983   0.05380   0.04777  -0.0680   1.0007   0.0196
 -12.250  -0.7880   0.05213   0.04599  -0.0685   0.9987   0.0203
 -12.000  -0.7663   0.05034   0.04402  -0.0707   0.9953   0.0212
 -11.750  -0.7440   0.04870   0.04232  -0.0732   0.9917   0.0223
 -11.500  -0.7211   0.04725   0.04085  -0.0757   0.9865   0.0238
 -11.250  -0.6934   0.04585   0.03935  -0.0786   0.9828   0.0264
 -11.000  -0.6713   0.04455   0.03803  -0.0808   0.9769   0.0295
 -10.750  -0.6481   0.04316   0.03663  -0.0836   0.9715   0.0334
 -10.500  -0.6198   0.04182   0.03523  -0.0876   0.9684   0.0386
 -10.250  -0.6082   0.04064   0.03386  -0.0878   0.9592   0.0425
 -10.000  -0.5803   0.03952   0.03282  -0.0911   0.9556   0.0458
  -9.750  -0.5690   0.03862   0.03182  -0.0907   0.9467   0.0486
  -9.500  -0.5419   0.03764   0.03078  -0.0927   0.9425   0.0519
  -9.250  -0.5319   0.03678   0.02995  -0.0924   0.9339   0.0545
  -9.000  -0.5062   0.03564   0.02865  -0.0951   0.9283   0.0584
  -8.750  -0.4685   0.03483   0.02790  -0.0974   0.9264   0.0619
  -8.500  -0.4559   0.03420   0.02727  -0.0957   0.9166   0.0638
  -8.250  -0.4199   0.03335   0.02634  -0.0980   0.9134   0.0671
  -8.000  -0.3806   0.03260   0.02555  -0.1002   0.9115   0.0706
  -7.750  -0.3688   0.03205   0.02506  -0.0980   0.9014   0.0729
  -7.500  -0.3326   0.03119   0.02420  -0.1004   0.8983   0.0767
  -7.250  -0.2921   0.03029   0.02319  -0.1037   0.8965   0.0810
  -7.000  -0.2819   0.02974   0.02275  -0.1011   0.8860   0.0846
  -6.750  -0.2447   0.02874   0.02176  -0.1041   0.8833   0.0905
  -6.500  -0.2050   0.02777   0.02080  -0.1071   0.8815   0.0968
  -6.250  -0.1892   0.02700   0.02008  -0.1064   0.8719   0.1013
  -6.000  -0.1501   0.02599   0.01902  -0.1097   0.8689   0.1087
  -5.750  -0.1080   0.02444   0.01757  -0.1149   0.8664   0.1199
  -5.500  -0.0761   0.02297   0.01617  -0.1187   0.8587   0.1331
  -5.250   0.0177   0.01684   0.01118  -0.1456   0.8554   0.4140
  -5.000   0.0588   0.01770   0.01204  -0.1466   0.8509   0.4719
  -4.750   0.0850   0.01926   0.01361  -0.1438   0.8428   0.4869
  -4.500   0.1148   0.02119   0.01553  -0.1409   0.8354   0.4994
  -4.000   0.1674   0.02573   0.02006  -0.1320   0.8181   0.5144
  -3.750   0.1873   0.02827   0.02262  -0.1245   0.8078   0.5164
  -3.250   0.2447   0.03055   0.02476  -0.1195   0.7870   0.5322
  -3.000   0.2872   0.03824   0.03250  -0.1074   0.7777   0.5968
  -2.750   0.3404   0.03726   0.03144  -0.1041   0.7690   0.6052
  -2.500   0.3391   0.03753   0.03162  -0.1034   0.7552   0.6148
  -2.250   0.3671   0.03662   0.03060  -0.1028   0.7448   0.6160
  -2.000   0.3898   0.03596   0.02982  -0.1026   0.7337   0.6166
  -1.750   0.4097   0.03540   0.02920  -0.1018   0.7221   0.6176
  -1.500   0.4328   0.03486   0.02855  -0.1017   0.7121   0.6188
  -1.250   0.4526   0.03439   0.02800  -0.1011   0.7014   0.6202
  -1.000   0.4718   0.03398   0.02752  -0.1007   0.6914   0.6219
  -0.750   0.4935   0.03358   0.02701  -0.1009   0.6827   0.6243
  -0.500   0.5105   0.03359   0.02697  -0.1042   0.6729   0.6313
  -0.250   0.5674   0.02840   0.02141  -0.1246   0.6649   0.5795
   0.000   0.5864   0.02808   0.02111  -0.1230   0.6565   0.5784
   0.250   0.6131   0.02765   0.02059  -0.1235   0.6498   0.5771
   0.500   0.6405   0.02713   0.02003  -0.1247   0.6428   0.5756
   0.750   0.6713   0.02650   0.01934  -0.1271   0.6358   0.5744
   1.000   0.7077   0.02590   0.01861  -0.1306   0.6301   0.5738
   1.250   0.7389   0.02532   0.01802  -0.1332   0.6231   0.5737
   1.500   0.7750   0.02479   0.01741  -0.1366   0.6176   0.5742
   1.750   0.8135   0.02435   0.01685  -0.1405   0.6128   0.5751
   2.000   0.8511   0.02380   0.01628  -0.1446   0.6071   0.5774
   2.250   0.8984   0.02307   0.01541  -0.1512   0.6021   0.5805
   2.500   0.9282   0.02307   0.01537  -0.1519   0.5982   0.5812
   2.750   0.9539   0.02311   0.01546  -0.1519   0.5937   0.5821
   3.000   0.9798   0.02314   0.01555  -0.1520   0.5889   0.5831
   3.250   1.0089   0.02318   0.01558  -0.1527   0.5849   0.5842
   3.500   1.0412   0.02324   0.01561  -0.1541   0.5816   0.5856
   3.750   1.0711   0.02334   0.01574  -0.1552   0.5781   0.5873
   4.000   1.0993   0.02339   0.01586  -0.1561   0.5743   0.5892
   4.250   1.1315   0.02340   0.01589  -0.1579   0.5706   0.5915
   4.500   1.1694   0.02335   0.01578  -0.1610   0.5671   0.5949
   4.750   1.2072   0.02339   0.01575  -0.1639   0.5639   0.5979
   5.000   1.2286   0.02361   0.01611  -0.1629   0.5597   0.5992
   5.250   1.2503   0.02374   0.01633  -0.1620   0.5542   0.6007
   5.500   1.2801   0.02374   0.01628  -0.1626   0.5483   0.6024
   5.750   1.3047   0.02388   0.01648  -0.1624   0.5426   0.6043
   6.000   1.3287   0.02395   0.01663  -0.1622   0.5368   0.6066
   6.250   1.3614   0.02397   0.01660  -0.1637   0.5320   0.6094
   6.500   1.3923   0.02406   0.01668  -0.1650   0.5265   0.6126
   6.750   1.4138   0.02414   0.01685  -0.1643   0.5205   0.6147
   7.000   1.4398   0.02420   0.01694  -0.1642   0.5154   0.6165
   7.250   1.4668   0.02439   0.01717  -0.1642   0.5109   0.6186
   7.500   1.4821   0.02462   0.01757  -0.1622   0.5054   0.6209
   7.750   1.5065   0.02471   0.01771  -0.1619   0.4999   0.6237
   8.000   1.5395   0.02480   0.01773  -0.1633   0.4947   0.6270
   8.250   1.5532   0.02502   0.01811  -0.1613   0.4885   0.6297
   8.500   1.5745   0.02499   0.01810  -0.1603   0.4815   0.6318
   8.750   1.5872   0.02511   0.01830  -0.1577   0.4739   0.6336
   9.000   1.5951   0.02514   0.01841  -0.1541   0.4652   0.6355
   9.250   1.5997   0.02530   0.01864  -0.1501   0.4569   0.6376
   9.500   1.6066   0.02553   0.01891  -0.1466   0.4471   0.6401
   9.750   1.6110   0.02602   0.01949  -0.1430   0.4371   0.6429
  10.000   1.6216   0.02643   0.01986  -0.1406   0.4267   0.6460
  10.250   1.6242   0.02711   0.02068  -0.1370   0.4153   0.6482
  10.500   1.6291   0.02782   0.02150  -0.1339   0.4041   0.6501
  10.750   1.6333   0.02866   0.02241  -0.1308   0.3918   0.6521
  11.000   1.6346   0.02975   0.02356  -0.1275   0.3764   0.6541
  11.250   1.6335   0.03112   0.02499  -0.1242   0.3557   0.6563
  11.500   1.6265   0.03300   0.02680  -0.1206   0.3291   0.6583
  11.750   1.6123   0.03564   0.02927  -0.1166   0.2989   0.6602
  12.000   1.5959   0.03881   0.03230  -0.1130   0.2727   0.6621
  12.250   1.5800   0.04230   0.03565  -0.1100   0.2529   0.6639
  12.500   1.5676   0.04563   0.03894  -0.1075   0.2375   0.6654
  12.750   1.5585   0.04887   0.04217  -0.1054   0.2245   0.6671
  13.000   1.5514   0.05206   0.04536  -0.1038   0.2137   0.6689
  13.250   1.5436   0.05540   0.04867  -0.1023   0.2043   0.6709
  13.500   1.5421   0.05829   0.05162  -0.1013   0.1951   0.6732
  13.750   1.5363   0.06165   0.05492  -0.1002   0.1875   0.6752
  14.000   1.5380   0.06439   0.05775  -0.0997   0.1796   0.6776
  14.250   1.5346   0.06764   0.06095  -0.0991   0.1730   0.6797
  14.500   1.5370   0.07031   0.06373  -0.0986   0.1665   0.6817
  14.750   1.5361   0.07331   0.06676  -0.0982   0.1604   0.6836
  15.000   1.5356   0.07625   0.06972  -0.0977   0.1550   0.6859
  15.250   1.5382   0.07899   0.07258  -0.0975   0.1494   0.6886
  15.500   1.5382   0.08197   0.07556  -0.0972   0.1445   0.6914
  15.750   1.5404   0.08472   0.07833  -0.0970   0.1399   0.6944
  16.000   1.5439   0.08749   0.08120  -0.0971   0.1351   0.6972
  16.250   1.5450   0.09038   0.08414  -0.0971   0.1308   0.6995
  16.500   1.5475   0.09295   0.08668  -0.0969   0.1268   0.7020
  16.750   1.5515   0.09563   0.08953  -0.0971   0.1231   0.7048
  17.000   1.5548   0.09837   0.09237  -0.0973   0.1194   0.7079
  17.250   1.5572   0.10118   0.09518  -0.0976   0.1159   0.7111
  17.500   1.5614   0.10362   0.09760  -0.0976   0.1124   0.7144
  17.750   1.5645   0.10646   0.10063  -0.0981   0.1091   0.7175
  18.000   1.5667   0.10939   0.10368  -0.0986   0.1058   0.7211
  18.250   1.5684   0.11237   0.10669  -0.0992   0.1024   0.7250
  18.500   1.5723   0.11489   0.10917  -0.0996   0.0992   0.7292
  18.750   1.5739   0.11807   0.11255  -0.1006   0.0962   0.7327
  19.000   1.5746   0.12133   0.11593  -0.1016   0.0928   0.7364
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