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SP4621HP (sp4621hp-po) Xfoil prediction polar at RE=2,000,000 Ncrit=9


Details Polar file
Airfoil: SP4621HP (sp4621hp-po)
Reynolds number: 2,000,000
Max Cl/Cd: 155.48 at α=5.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-sp4621hp-po-2000000.txt
Download as CSV file: xf-sp4621hp-po-2000000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: SP4621HP                                        
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     2.000 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -1.1049   0.06944   0.06579  -0.0890   1.0005   0.0093
 -19.500  -1.1053   0.06673   0.06304  -0.0896   1.0005   0.0094
 -19.250  -1.1069   0.06393   0.06018  -0.0902   1.0005   0.0095
 -19.000  -1.1048   0.06166   0.05787  -0.0904   1.0005   0.0096
 -18.750  -1.1028   0.05946   0.05563  -0.0906   1.0005   0.0097
 -18.500  -1.1011   0.05728   0.05341  -0.0906   1.0005   0.0099
 -18.250  -1.0967   0.05548   0.05157  -0.0904   1.0005   0.0100
 -18.000  -1.0927   0.05370   0.04975  -0.0901   1.0005   0.0101
 -17.750  -1.0899   0.05186   0.04787  -0.0897   1.0005   0.0103
 -17.500  -1.0843   0.05038   0.04636  -0.0892   1.0005   0.0104
 -17.250  -1.0787   0.04896   0.04490  -0.0885   1.0005   0.0105
 -17.000  -1.0737   0.04752   0.04343  -0.0877   1.0005   0.0106
 -16.750  -1.0591   0.04586   0.04174  -0.0889   1.0001   0.0107
 -16.500  -1.0404   0.04431   0.04015  -0.0906   0.9994   0.0109
 -16.250  -1.0252   0.04241   0.03822  -0.0924   0.9986   0.0114
 -16.000  -1.0066   0.04080   0.03659  -0.0943   0.9976   0.0118
 -15.750  -0.9865   0.03924   0.03501  -0.0963   0.9964   0.0121
 -15.500  -0.9638   0.03787   0.03363  -0.0984   0.9952   0.0125
 -15.250  -0.9397   0.03662   0.03237  -0.1006   0.9941   0.0128
 -15.000  -0.9164   0.03545   0.03117  -0.1024   0.9924   0.0131
 -14.750  -0.8946   0.03435   0.03005  -0.1037   0.9885   0.0133
 -14.500  -0.8735   0.03298   0.02866  -0.1056   0.9837   0.0139
 -14.250  -0.8538   0.03178   0.02744  -0.1068   0.9747   0.0145
 -14.000  -0.8326   0.03075   0.02638  -0.1079   0.9553   0.0150
 -13.750  -0.8196   0.03013   0.02542  -0.1069   0.8619   0.0155
 -13.500  -0.8047   0.02957   0.02458  -0.1064   0.7965   0.0158
 -13.250  -0.7873   0.02887   0.02376  -0.1064   0.7721   0.0162
 -13.000  -0.7715   0.02798   0.02280  -0.1065   0.7575   0.0168
 -12.750  -0.7552   0.02711   0.02189  -0.1066   0.7462   0.0175
 -12.500  -0.7375   0.02635   0.02110  -0.1068   0.7373   0.0182
 -12.250  -0.7193   0.02563   0.02034  -0.1069   0.7291   0.0188
 -12.000  -0.7006   0.02492   0.01960  -0.1071   0.7228   0.0193
 -11.750  -0.6838   0.02412   0.01876  -0.1072   0.7155   0.0202
 -11.500  -0.6666   0.02330   0.01794  -0.1073   0.7098   0.0211
 -11.250  -0.6486   0.02259   0.01721  -0.1074   0.7048   0.0220
 -11.000  -0.6310   0.02193   0.01653  -0.1072   0.6994   0.0227
 -10.750  -0.6146   0.02124   0.01580  -0.1071   0.6936   0.0236
 -10.500  -0.5940   0.02043   0.01501  -0.1079   0.6903   0.0250
 -10.250  -0.5714   0.01975   0.01432  -0.1088   0.6863   0.0262
 -10.000  -0.5472   0.01913   0.01367  -0.1098   0.6817   0.0271
  -9.750  -0.5235   0.01832   0.01285  -0.1112   0.6762   0.0290
  -9.500  -0.4970   0.01762   0.01215  -0.1128   0.6732   0.0306
  -9.250  -0.4694   0.01696   0.01148  -0.1145   0.6695   0.0320
  -9.000  -0.4408   0.01619   0.01071  -0.1167   0.6655   0.0344
  -8.750  -0.4112   0.01557   0.01007  -0.1187   0.6612   0.0363
  -8.500  -0.3800   0.01482   0.00932  -0.1213   0.6571   0.0395
  -8.250  -0.3474   0.01417   0.00867  -0.1239   0.6548   0.0422
  -8.000  -0.3129   0.01341   0.00792  -0.1271   0.6516   0.0468
  -7.750  -0.2777   0.01274   0.00725  -0.1302   0.6480   0.0514
  -7.500  -0.2416   0.01212   0.00662  -0.1335   0.6440   0.0560
  -7.250  -0.2034   0.01146   0.00596  -0.1372   0.6394   0.0626
  -7.000  -0.1646   0.01088   0.00539  -0.1409   0.6373   0.0690
  -6.750  -0.1275   0.01047   0.00498  -0.1438   0.6345   0.0748
  -6.500  -0.0908   0.01008   0.00461  -0.1466   0.6314   0.0838
  -6.250  -0.0550   0.00977   0.00431  -0.1489   0.6280   0.0931
  -6.000  -0.0203   0.00953   0.00407  -0.1510   0.6240   0.1020
  -5.750   0.0145   0.00929   0.00385  -0.1530   0.6209   0.1121
  -5.500   0.0501   0.00901   0.00361  -0.1552   0.6186   0.1262
  -5.250   0.0858   0.00873   0.00339  -0.1574   0.6156   0.1446
  -5.000   0.1224   0.00840   0.00313  -0.1599   0.6123   0.1733
  -4.750   0.1634   0.00782   0.00274  -0.1637   0.6085   0.2417
  -4.500   0.2154   0.00653   0.00206  -0.1708   0.6041   0.4478
  -4.250   0.2464   0.00656   0.00208  -0.1715   0.6023   0.4555
  -4.000   0.2776   0.00657   0.00208  -0.1722   0.5998   0.4599
  -3.750   0.3086   0.00661   0.00211  -0.1729   0.5969   0.4644
  -3.500   0.3392   0.00667   0.00214  -0.1735   0.5935   0.4672
  -3.250   0.3697   0.00674   0.00218  -0.1740   0.5896   0.4695
  -3.000   0.4001   0.00682   0.00222  -0.1746   0.5861   0.4714
  -2.750   0.4309   0.00687   0.00225  -0.1752   0.5839   0.4725
  -2.500   0.4617   0.00692   0.00228  -0.1758   0.5811   0.4736
  -2.250   0.4928   0.00689   0.00224  -0.1766   0.5780   0.4758
  -2.000   0.5235   0.00692   0.00225  -0.1773   0.5746   0.4779
  -1.750   0.5536   0.00701   0.00232  -0.1778   0.5704   0.4806
  -1.500   0.5840   0.00707   0.00239  -0.1783   0.5681   0.4826
  -1.250   0.6148   0.00710   0.00241  -0.1790   0.5656   0.4835
  -1.000   0.6452   0.00715   0.00246  -0.1795   0.5625   0.4848
  -0.750   0.6756   0.00719   0.00247  -0.1801   0.5589   0.4853
  -0.500   0.7058   0.00723   0.00248  -0.1807   0.5548   0.4855
  -0.250   0.7363   0.00726   0.00249  -0.1813   0.5516   0.4857
   0.000   0.7670   0.00727   0.00250  -0.1820   0.5494   0.4859
   0.250   0.7975   0.00729   0.00252  -0.1826   0.5464   0.4862
   0.500   0.8278   0.00732   0.00254  -0.1832   0.5430   0.4865
   0.750   0.8578   0.00738   0.00257  -0.1838   0.5389   0.4867
   1.000   0.8877   0.00744   0.00261  -0.1843   0.5348   0.4870
   1.250   0.9182   0.00745   0.00263  -0.1849   0.5325   0.4872
   1.500   0.9484   0.00748   0.00266  -0.1855   0.5292   0.4874
   1.750   0.9780   0.00755   0.00270  -0.1860   0.5239   0.4877
   2.000   1.0073   0.00764   0.00276  -0.1864   0.5177   0.4879
   2.250   1.0375   0.00767   0.00280  -0.1869   0.5137   0.4881
   2.500   1.0668   0.00775   0.00285  -0.1874   0.5070   0.4884
   2.750   1.0958   0.00785   0.00292  -0.1877   0.5004   0.4886
   3.000   1.1255   0.00790   0.00297  -0.1882   0.4959   0.4888
   3.250   1.1545   0.00799   0.00305  -0.1886   0.4901   0.4891
   3.500   1.1832   0.00810   0.00313  -0.1889   0.4836   0.4893
   3.750   1.2125   0.00816   0.00320  -0.1893   0.4786   0.4895
   4.000   1.2409   0.00828   0.00330  -0.1895   0.4716   0.4896
   4.250   1.2694   0.00839   0.00340  -0.1898   0.4655   0.4898
   4.500   1.2979   0.00849   0.00349  -0.1901   0.4586   0.4902
   4.750   1.3257   0.00864   0.00360  -0.1903   0.4503   0.4911
   5.000   1.3542   0.00873   0.00369  -0.1906   0.4430   0.4920
   5.250   1.3813   0.00891   0.00383  -0.1906   0.4335   0.4930
   5.500   1.4086   0.00906   0.00397  -0.1907   0.4232   0.4939
   5.750   1.4349   0.00927   0.00413  -0.1906   0.4107   0.4948
   6.000   1.4603   0.00953   0.00433  -0.1903   0.3961   0.4956
   6.250   1.4849   0.00982   0.00456  -0.1899   0.3803   0.4964
   6.500   1.5074   0.01022   0.00485  -0.1891   0.3582   0.4971
   6.750   1.5240   0.01091   0.00534  -0.1872   0.3208   0.4978
   7.000   1.5310   0.01203   0.00612  -0.1836   0.2630   0.4984
   7.250   1.5333   0.01321   0.00700  -0.1791   0.2105   0.4990
   7.500   1.5358   0.01401   0.00764  -0.1745   0.1810   0.4996
   7.750   1.5425   0.01475   0.00828  -0.1708   0.1604   0.5002
   8.000   1.5546   0.01541   0.00887  -0.1683   0.1456   0.5009
   8.250   1.5685   0.01601   0.00943  -0.1661   0.1350   0.5015
   8.500   1.5823   0.01662   0.01002  -0.1639   0.1260   0.5022
   8.750   1.5950   0.01731   0.01067  -0.1617   0.1179   0.5029
   9.000   1.6098   0.01791   0.01128  -0.1599   0.1126   0.5035
   9.250   1.6231   0.01863   0.01198  -0.1579   0.1075   0.5042
   9.500   1.6357   0.01941   0.01275  -0.1559   0.1018   0.5048
   9.750   1.6502   0.02011   0.01347  -0.1542   0.0992   0.5054
  10.000   1.6629   0.02095   0.01432  -0.1524   0.0961   0.5059
  10.250   1.6737   0.02195   0.01533  -0.1505   0.0923   0.5064
  10.500   1.6861   0.02292   0.01631  -0.1489   0.0893   0.5068
  10.750   1.6995   0.02385   0.01728  -0.1475   0.0877   0.5072
  11.000   1.7112   0.02496   0.01841  -0.1461   0.0856   0.5084
  11.250   1.7211   0.02627   0.01975  -0.1446   0.0832   0.5101
  11.500   1.7298   0.02775   0.02125  -0.1431   0.0802   0.5118
  11.750   1.7398   0.02919   0.02273  -0.1419   0.0782   0.5135
  12.000   1.7518   0.03049   0.02408  -0.1409   0.0774   0.5151
  12.250   1.7624   0.03193   0.02557  -0.1399   0.0762   0.5165
  12.500   1.7713   0.03356   0.02724  -0.1388   0.0748   0.5179
  12.750   1.7784   0.03538   0.02909  -0.1376   0.0729   0.5191
  13.000   1.7839   0.03734   0.03108  -0.1364   0.0710   0.5203
  13.250   1.7878   0.03945   0.03322  -0.1351   0.0686   0.5214
  13.500   1.7955   0.04125   0.03507  -0.1341   0.0677   0.5225
  13.750   1.8032   0.04307   0.03693  -0.1332   0.0669   0.5234
  14.000   1.8099   0.04495   0.03886  -0.1322   0.0657   0.5243
  14.250   1.8139   0.04714   0.04109  -0.1311   0.0644   0.5249
  14.500   1.8176   0.04936   0.04335  -0.1301   0.0631   0.5270
  14.750   1.8200   0.05176   0.04578  -0.1290   0.0615   0.5297
  15.000   1.8211   0.05434   0.04840  -0.1280   0.0596   0.5321
  15.250   1.8267   0.05644   0.05056  -0.1272   0.0588   0.5343
  15.500   1.8315   0.05868   0.05287  -0.1265   0.0582   0.5365
  15.750   1.8370   0.06080   0.05504  -0.1257   0.0574   0.5386
  16.000   1.8398   0.06327   0.05755  -0.1249   0.0564   0.5405
  16.250   1.8430   0.06568   0.06000  -0.1242   0.0551   0.5421
  16.500   1.8433   0.06845   0.06280  -0.1235   0.0537   0.5436
  16.750   1.8447   0.07111   0.06550  -0.1228   0.0519   0.5477
  17.000   1.8457   0.07385   0.06830  -0.1222   0.0508   0.5514
  17.250   1.8505   0.07613   0.07064  -0.1217   0.0502   0.5549
  17.500   1.8537   0.07861   0.07318  -0.1212   0.0492   0.5582
  17.750   1.8552   0.08131   0.07593  -0.1208   0.0481   0.5611
  18.000   1.8573   0.08393   0.07859  -0.1204   0.0470   0.5662
  18.250   1.8562   0.08700   0.08170  -0.1200   0.0457   0.5712
  18.500   1.8570   0.08975   0.08450  -0.1197   0.0442   0.5760
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