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St. CYR 172 (Royer) (stcyr172-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: St. CYR 172 (Royer) (stcyr172-il)
Reynolds number: 500,000
Max Cl/Cd: 66.73 at α=6.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-stcyr172-il-500000.txt
Download as CSV file: xf-stcyr172-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: St. CYR 172 (Royer)                             
  
 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
  ------ -------- --------- --------- -------- -------- --------
 -19.250  -1.0723   0.11631   0.11277  -0.0170   1.0000   0.0305
 -19.000  -1.0958   0.10810   0.10439  -0.0219   1.0000   0.0307
 -18.750  -1.1162   0.10075   0.09688  -0.0263   1.0000   0.0310
 -18.500  -1.1329   0.09423   0.09020  -0.0301   1.0000   0.0312
 -18.250  -1.1481   0.08816   0.08398  -0.0335   1.0000   0.0314
 -18.000  -1.1629   0.08228   0.07794  -0.0369   1.0000   0.0317
 -17.750  -1.1745   0.07706   0.07256  -0.0399   1.0000   0.0319
 -17.500  -1.1849   0.07221   0.06755  -0.0425   1.0000   0.0320
 -17.250  -1.1951   0.06756   0.06276  -0.0447   1.0000   0.0323
 -17.000  -1.1951   0.06464   0.05980  -0.0451   1.0000   0.0327
 -16.750  -1.1932   0.06195   0.05710  -0.0459   1.0000   0.0332
 -16.500  -1.1935   0.05891   0.05400  -0.0470   1.0000   0.0335
 -16.250  -1.1939   0.05589   0.05091  -0.0482   1.0000   0.0339
 -16.000  -1.1943   0.05294   0.04787  -0.0492   1.0000   0.0342
 -15.750  -1.1948   0.05006   0.04490  -0.0501   1.0000   0.0346
 -15.500  -1.1944   0.04736   0.04210  -0.0508   1.0000   0.0350
 -15.250  -1.1931   0.04486   0.03950  -0.0512   1.0000   0.0355
 -15.000  -1.1908   0.04254   0.03708  -0.0514   1.0000   0.0359
 -14.750  -1.1877   0.04040   0.03482  -0.0513   1.0000   0.0362
 -14.500  -1.1848   0.03838   0.03268  -0.0511   1.0000   0.0367
 -14.250  -1.1804   0.03662   0.03081  -0.0506   1.0000   0.0369
 -14.000  -1.1763   0.03469   0.02881  -0.0496   1.0000   0.0376
 -13.750  -1.1697   0.03307   0.02717  -0.0485   1.0000   0.0382
 -13.500  -1.1629   0.03165   0.02573  -0.0474   1.0000   0.0387
 -13.250  -1.1556   0.03035   0.02438  -0.0460   1.0000   0.0391
 -13.000  -1.1479   0.02918   0.02315  -0.0446   1.0000   0.0397
 -12.750  -1.1398   0.02811   0.02202  -0.0429   1.0000   0.0403
 -12.500  -1.1314   0.02712   0.02096  -0.0410   1.0000   0.0409
 -12.250  -1.1224   0.02622   0.01999  -0.0390   1.0000   0.0416
 -12.000  -1.1129   0.02540   0.01910  -0.0368   1.0000   0.0421
 -11.750  -1.1028   0.02472   0.01833  -0.0345   1.0000   0.0425
 -11.500  -1.0961   0.02372   0.01729  -0.0317   1.0000   0.0431
 -11.250  -1.0928   0.02266   0.01621  -0.0281   1.0000   0.0437
 -11.000  -1.0882   0.02191   0.01544  -0.0245   1.0000   0.0444
 -10.750  -1.0813   0.02128   0.01479  -0.0210   1.0000   0.0451
 -10.500  -1.0697   0.02068   0.01417  -0.0184   1.0000   0.0460
 -10.250  -1.0575   0.02009   0.01353  -0.0158   1.0000   0.0468
 -10.000  -1.0444   0.01953   0.01293  -0.0132   1.0000   0.0476
  -9.750  -1.0300   0.01904   0.01238  -0.0109   1.0000   0.0484
  -9.500  -1.0146   0.01860   0.01189  -0.0087   1.0000   0.0490
  -9.250  -1.0066   0.01772   0.01099  -0.0053   1.0000   0.0502
  -9.000  -0.9946   0.01708   0.01034  -0.0025   1.0000   0.0513
  -8.750  -0.9803   0.01658   0.00983  -0.0001   1.0000   0.0527
  -8.500  -0.9657   0.01613   0.00935   0.0024   1.0000   0.0540
  -8.250  -0.9508   0.01574   0.00892   0.0048   1.0000   0.0552
  -8.000  -0.9361   0.01538   0.00852   0.0073   1.0000   0.0563
  -7.750  -0.9253   0.01481   0.00794   0.0104   1.0000   0.0585
  -7.500  -0.9116   0.01439   0.00751   0.0130   1.0000   0.0605
  -7.250  -0.8962   0.01406   0.00715   0.0153   1.0000   0.0629
  -7.000  -0.8810   0.01367   0.00676   0.0177   1.0000   0.0666
  -6.750  -0.8552   0.01318   0.00632   0.0178   0.9987   0.0746
  -6.500  -0.8232   0.01235   0.00585   0.0164   0.9955   0.1230
  -6.250  -0.7866   0.01201   0.00566   0.0144   0.9928   0.1505
  -6.000  -0.7519   0.01173   0.00542   0.0129   0.9891   0.1646
  -5.750  -0.7149   0.01149   0.00521   0.0110   0.9856   0.1760
  -5.500  -0.6752   0.01126   0.00501   0.0085   0.9828   0.1868
  -5.250  -0.6409   0.01094   0.00476   0.0072   0.9779   0.1977
  -5.000  -0.6051   0.01066   0.00453   0.0056   0.9735   0.2089
  -4.750  -0.5674   0.01037   0.00431   0.0035   0.9705   0.2242
  -4.500  -0.5361   0.01008   0.00410   0.0029   0.9654   0.2401
  -4.250  -0.5027   0.00979   0.00390   0.0018   0.9604   0.2591
  -4.000  -0.4653   0.00949   0.00370  -0.0001   0.9570   0.2804
  -3.750  -0.4330   0.00925   0.00353  -0.0008   0.9511   0.3001
  -3.500  -0.3975   0.00901   0.00336  -0.0022   0.9454   0.3201
  -3.250  -0.3548   0.00877   0.00320  -0.0052   0.9412   0.3385
  -3.000  -0.3201   0.00861   0.00306  -0.0064   0.9321   0.3537
  -2.750  -0.2768   0.00840   0.00291  -0.0095   0.9252   0.3703
  -2.500  -0.2419   0.00824   0.00279  -0.0107   0.9129   0.3835
  -2.250  -0.2081   0.00813   0.00267  -0.0117   0.8988   0.3946
  -2.000  -0.1780   0.00804   0.00258  -0.0119   0.8829   0.4056
  -1.750  -0.1511   0.00795   0.00249  -0.0113   0.8628   0.4165
  -1.500  -0.1259   0.00788   0.00238  -0.0104   0.8337   0.4281
  -1.250  -0.1022   0.00781   0.00225  -0.0091   0.7883   0.4407
  -1.000  -0.0808   0.00787   0.00212  -0.0073   0.7324   0.4535
  -0.750  -0.0597   0.00796   0.00206  -0.0056   0.6861   0.4685
  -0.500  -0.0391   0.00801   0.00203  -0.0039   0.6411   0.4870
  -0.250  -0.0191   0.00805   0.00199  -0.0020   0.5920   0.5117
   0.000  -0.0001   0.00807   0.00198   0.0000   0.5456   0.5462
   0.250   0.0191   0.00805   0.00199   0.0020   0.5115   0.5918
   0.500   0.0390   0.00801   0.00203   0.0039   0.4870   0.6412
   0.750   0.0597   0.00796   0.00206   0.0056   0.4683   0.6858
   1.000   0.0808   0.00788   0.00212   0.0073   0.4534   0.7313
   1.250   0.1023   0.00781   0.00224   0.0091   0.4405   0.7872
   1.500   0.1257   0.00788   0.00239   0.0104   0.4280   0.8351
   1.750   0.1511   0.00795   0.00249   0.0113   0.4165   0.8630
   2.000   0.1780   0.00804   0.00258   0.0119   0.4055   0.8830
   2.250   0.2081   0.00813   0.00267   0.0117   0.3946   0.8989
   2.500   0.2419   0.00824   0.00279   0.0107   0.3832   0.9128
   2.750   0.2769   0.00840   0.00291   0.0095   0.3705   0.9252
   3.000   0.3199   0.00861   0.00306   0.0064   0.3540   0.9320
   3.250   0.3548   0.00877   0.00320   0.0052   0.3386   0.9412
   3.500   0.3975   0.00901   0.00336   0.0022   0.3202   0.9454
   3.750   0.4331   0.00925   0.00353   0.0008   0.3002   0.9513
   4.000   0.4654   0.00949   0.00370   0.0000   0.2805   0.9571
   4.250   0.5027   0.00979   0.00390  -0.0018   0.2586   0.9605
   4.500   0.5361   0.01009   0.00410  -0.0029   0.2397   0.9654
   4.750   0.5673   0.01037   0.00430  -0.0035   0.2238   0.9705
   5.000   0.6052   0.01066   0.00453  -0.0056   0.2090   0.9735
   5.250   0.6409   0.01094   0.00476  -0.0072   0.1978   0.9779
   5.500   0.6754   0.01126   0.00501  -0.0086   0.1868   0.9828
   5.750   0.7153   0.01149   0.00521  -0.0111   0.1759   0.9857
   6.000   0.7516   0.01173   0.00542  -0.0129   0.1646   0.9890
   6.250   0.7868   0.01201   0.00566  -0.0144   0.1506   0.9929
   6.500   0.8235   0.01234   0.00585  -0.0164   0.1246   0.9955
   6.750   0.8558   0.01319   0.00633  -0.0180   0.0744   0.9988
   7.000   0.8809   0.01367   0.00676  -0.0177   0.0666   1.0000
   7.250   0.8962   0.01406   0.00715  -0.0153   0.0630   1.0000
   7.500   0.9116   0.01439   0.00751  -0.0130   0.0606   1.0000
   7.750   0.9253   0.01480   0.00793  -0.0104   0.0585   1.0000
   8.000   0.9362   0.01537   0.00851  -0.0073   0.0564   1.0000
   8.250   0.9508   0.01574   0.00892  -0.0048   0.0553   1.0000
   8.500   0.9657   0.01613   0.00935  -0.0024   0.0540   1.0000
   8.750   0.9804   0.01658   0.00983   0.0001   0.0527   1.0000
   9.000   0.9945   0.01708   0.01035   0.0025   0.0514   1.0000
   9.250   1.0067   0.01771   0.01098   0.0053   0.0502   1.0000
   9.500   1.0146   0.01860   0.01189   0.0087   0.0490   1.0000
   9.750   1.0299   0.01904   0.01239   0.0109   0.0484   1.0000
  10.000   1.0444   0.01953   0.01293   0.0132   0.0476   1.0000
  10.250   1.0576   0.02009   0.01353   0.0157   0.0468   1.0000
  10.500   1.0700   0.02067   0.01415   0.0183   0.0459   1.0000
  10.750   1.0814   0.02128   0.01479   0.0210   0.0451   1.0000
  11.000   1.0885   0.02190   0.01544   0.0244   0.0444   1.0000
  11.250   1.0935   0.02264   0.01619   0.0280   0.0438   1.0000
  11.500   1.0963   0.02374   0.01730   0.0316   0.0431   1.0000
  11.750   1.1034   0.02468   0.01830   0.0344   0.0425   1.0000
  12.000   1.1133   0.02541   0.01911   0.0368   0.0421   1.0000
  12.250   1.1232   0.02616   0.01994   0.0389   0.0415   1.0000
  12.500   1.1321   0.02709   0.02093   0.0409   0.0409   1.0000
  12.750   1.1406   0.02806   0.02197   0.0428   0.0402   1.0000
  13.000   1.1487   0.02916   0.02313   0.0444   0.0396   1.0000
  13.250   1.1564   0.03035   0.02438   0.0459   0.0391   1.0000
  13.500   1.1638   0.03163   0.02570   0.0472   0.0386   1.0000
  13.750   1.1707   0.03304   0.02714   0.0484   0.0381   1.0000
  14.000   1.1772   0.03472   0.02882   0.0495   0.0375   1.0000
  14.250   1.1824   0.03660   0.03078   0.0505   0.0370   1.0000
  14.500   1.1862   0.03836   0.03266   0.0510   0.0367   1.0000
  14.750   1.1892   0.04035   0.03478   0.0512   0.0362   1.0000
  15.000   1.1920   0.04252   0.03706   0.0512   0.0358   1.0000
  15.250   1.1944   0.04483   0.03948   0.0510   0.0354   1.0000
  15.500   1.1959   0.04732   0.04206   0.0506   0.0350   1.0000
  15.750   1.1963   0.05002   0.04486   0.0499   0.0346   1.0000
  16.000   1.1960   0.05289   0.04782   0.0489   0.0341   1.0000
  16.250   1.1959   0.05582   0.05082   0.0479   0.0338   1.0000
  16.500   1.1957   0.05881   0.05389   0.0468   0.0334   1.0000
  16.750   1.1963   0.06173   0.05685   0.0457   0.0331   1.0000
  17.000   1.1975   0.06454   0.05969   0.0449   0.0327   1.0000
  17.250   1.1951   0.06774   0.06294   0.0446   0.0322   1.0000
  17.500   1.1858   0.07235   0.06771   0.0420   0.0320   1.0000
  17.750   1.1758   0.07718   0.07269   0.0394   0.0318   1.0000
  18.000   1.1631   0.08259   0.07826   0.0363   0.0316   1.0000
  18.250   1.1500   0.08816   0.08398   0.0332   0.0314   1.0000
  18.500   1.1337   0.09445   0.09043   0.0296   0.0311   1.0000
  18.750   1.1172   0.10095   0.09708   0.0258   0.0309   1.0000
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