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St. CYR 172 (Royer) (stcyr172-il) Xfoil prediction polar at RE=1,000,000 Ncrit=9


Details Polar file
Airfoil: St. CYR 172 (Royer) (stcyr172-il)
Reynolds number: 1,000,000
Max Cl/Cd: 74.24 at α=8.75°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-stcyr172-il-1000000.txt
Download as CSV file: xf-stcyr172-il-1000000.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 =     1.000 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -18.750  -1.2370   0.08633   0.08265  -0.0269   1.0000   0.0251
 -18.500  -1.2463   0.08155   0.07780  -0.0290   1.0000   0.0253
 -18.250  -1.2561   0.07678   0.07296  -0.0312   1.0000   0.0255
 -18.000  -1.2641   0.07224   0.06835  -0.0333   1.0000   0.0258
 -17.750  -1.2752   0.06752   0.06354  -0.0353   1.0000   0.0259
 -17.500  -1.2843   0.06304   0.05897  -0.0373   1.0000   0.0261
 -17.250  -1.2913   0.05882   0.05466  -0.0391   1.0000   0.0264
 -17.000  -1.2979   0.05474   0.05049  -0.0408   1.0000   0.0266
 -16.750  -1.3048   0.05061   0.04626  -0.0426   1.0000   0.0267
 -16.500  -1.3051   0.04732   0.04288  -0.0440   1.0000   0.0271
 -16.250  -1.3067   0.04400   0.03946  -0.0452   1.0000   0.0273
 -16.000  -1.3045   0.04122   0.03658  -0.0462   1.0000   0.0275
 -15.750  -1.3001   0.03882   0.03410  -0.0469   1.0000   0.0277
 -15.500  -1.3054   0.03559   0.03077  -0.0474   1.0000   0.0280
 -15.250  -1.3127   0.03243   0.02751  -0.0475   1.0000   0.0284
 -15.000  -1.3132   0.03016   0.02518  -0.0470   1.0000   0.0287
 -14.750  -1.3094   0.02847   0.02342  -0.0461   1.0000   0.0290
 -14.500  -1.3015   0.02721   0.02213  -0.0451   1.0000   0.0295
 -14.250  -1.2944   0.02599   0.02085  -0.0438   1.0000   0.0298
 -14.000  -1.2868   0.02489   0.01970  -0.0422   1.0000   0.0302
 -13.750  -1.2772   0.02399   0.01875  -0.0406   1.0000   0.0306
 -13.500  -1.2676   0.02315   0.01785  -0.0387   1.0000   0.0310
 -13.250  -1.2575   0.02241   0.01705  -0.0367   1.0000   0.0314
 -13.000  -1.2469   0.02175   0.01633  -0.0346   1.0000   0.0317
 -12.750  -1.2347   0.02121   0.01574  -0.0324   1.0000   0.0320
 -12.500  -1.2274   0.02053   0.01500  -0.0295   1.0000   0.0324
 -12.250  -1.2288   0.01963   0.01405  -0.0250   1.0000   0.0330
 -12.000  -1.2247   0.01906   0.01344  -0.0209   1.0000   0.0334
 -11.750  -1.2144   0.01855   0.01291  -0.0180   1.0000   0.0339
 -11.500  -1.1999   0.01811   0.01245  -0.0157   1.0000   0.0345
 -11.250  -1.1849   0.01769   0.01201  -0.0135   1.0000   0.0350
 -11.000  -1.1696   0.01728   0.01156  -0.0113   1.0000   0.0356
 -10.750  -1.1540   0.01687   0.01112  -0.0092   1.0000   0.0361
 -10.500  -1.1373   0.01651   0.01072  -0.0071   1.0000   0.0366
 -10.250  -1.1201   0.01618   0.01035  -0.0052   1.0000   0.0370
 -10.000  -1.1068   0.01562   0.00975  -0.0026   1.0000   0.0378
  -9.750  -1.0925   0.01511   0.00922  -0.0001   1.0000   0.0387
  -9.500  -1.0763   0.01473   0.00883   0.0021   1.0000   0.0395
  -9.250  -1.0596   0.01441   0.00850   0.0042   1.0000   0.0402
  -9.000  -1.0438   0.01411   0.00817   0.0065   1.0000   0.0409
  -8.750  -1.0290   0.01385   0.00790   0.0090   1.0000   0.0417
  -8.500  -0.9956   0.01357   0.00758   0.0077   0.9987   0.0425
  -8.250  -0.9623   0.01308   0.00707   0.0063   0.9967   0.0441
  -8.000  -0.9281   0.01268   0.00668   0.0048   0.9948   0.0459
  -7.750  -0.8933   0.01237   0.00637   0.0032   0.9932   0.0475
  -7.500  -0.8616   0.01207   0.00605   0.0024   0.9904   0.0488
  -7.250  -0.8300   0.01166   0.00563   0.0015   0.9875   0.0513
  -7.000  -0.7972   0.01129   0.00528   0.0004   0.9851   0.0542
  -6.750  -0.7633   0.01096   0.00495  -0.0009   0.9832   0.0581
  -6.500  -0.7326   0.01051   0.00456  -0.0016   0.9799   0.0661
  -6.250  -0.7079   0.00965   0.00403  -0.0013   0.9742   0.1174
  -6.000  -0.6752   0.00928   0.00379  -0.0024   0.9711   0.1395
  -5.750  -0.6449   0.00902   0.00358  -0.0028   0.9657   0.1505
  -5.500  -0.6142   0.00882   0.00338  -0.0033   0.9595   0.1576
  -5.250  -0.5797   0.00855   0.00318  -0.0046   0.9562   0.1674
  -5.000  -0.5469   0.00836   0.00300  -0.0056   0.9501   0.1757
  -4.750  -0.5082   0.00812   0.00282  -0.0078   0.9452   0.1861
  -4.500  -0.4676   0.00787   0.00263  -0.0105   0.9400   0.1991
  -4.250  -0.4300   0.00763   0.00245  -0.0126   0.9314   0.2151
  -4.000  -0.3928   0.00741   0.00229  -0.0145   0.9218   0.2348
  -3.750  -0.3604   0.00722   0.00215  -0.0154   0.9105   0.2546
  -3.500  -0.3332   0.00706   0.00206  -0.0151   0.8985   0.2761
  -3.250  -0.3063   0.00696   0.00198  -0.0147   0.8865   0.2933
  -3.000  -0.2801   0.00688   0.00191  -0.0142   0.8731   0.3080
  -2.750  -0.2548   0.00681   0.00185  -0.0134   0.8574   0.3221
  -2.500  -0.2303   0.00674   0.00178  -0.0124   0.8339   0.3358
  -2.250  -0.2087   0.00675   0.00168  -0.0107   0.7818   0.3482
  -2.000  -0.1886   0.00689   0.00162  -0.0087   0.7241   0.3582
  -1.750  -0.1660   0.00698   0.00159  -0.0074   0.6859   0.3683
  -1.500  -0.1429   0.00706   0.00156  -0.0061   0.6471   0.3766
  -1.250  -0.1205   0.00718   0.00153  -0.0048   0.5950   0.3854
  -1.000  -0.0984   0.00735   0.00151  -0.0034   0.5371   0.3935
  -0.750  -0.0750   0.00745   0.00150  -0.0023   0.4977   0.4032
  -0.500  -0.0502   0.00751   0.00149  -0.0015   0.4714   0.4133
  -0.250  -0.0251   0.00754   0.00149  -0.0007   0.4524   0.4249
   0.000   0.0000   0.00754   0.00149   0.0000   0.4377   0.4377
   0.250   0.0251   0.00754   0.00149   0.0008   0.4249   0.4524
   0.500   0.0502   0.00750   0.00149   0.0015   0.4135   0.4713
   0.750   0.0749   0.00745   0.00150   0.0023   0.4032   0.4978
   1.000   0.0984   0.00735   0.00151   0.0034   0.3934   0.5372
   1.250   0.1205   0.00718   0.00153   0.0048   0.3853   0.5947
   1.500   0.1430   0.00706   0.00156   0.0061   0.3765   0.6460
   1.750   0.1659   0.00697   0.00159   0.0074   0.3683   0.6867
   2.000   0.1885   0.00689   0.00162   0.0087   0.3583   0.7244
   2.250   0.2087   0.00675   0.00168   0.0107   0.3479   0.7810
   2.500   0.2303   0.00674   0.00178   0.0123   0.3359   0.8334
   2.750   0.2548   0.00680   0.00185   0.0134   0.3227   0.8574
   3.000   0.2802   0.00687   0.00191   0.0141   0.3090   0.8731
   3.250   0.3063   0.00696   0.00198   0.0147   0.2934   0.8864
   3.500   0.3332   0.00706   0.00206   0.0151   0.2763   0.8988
   3.750   0.3604   0.00722   0.00215   0.0154   0.2546   0.9105
   4.000   0.3926   0.00741   0.00229   0.0146   0.2349   0.9213
   4.250   0.4299   0.00763   0.00245   0.0126   0.2152   0.9314
   4.500   0.4675   0.00787   0.00263   0.0106   0.1986   0.9400
   4.750   0.5085   0.00812   0.00282   0.0078   0.1860   0.9453
   5.000   0.5470   0.00835   0.00300   0.0055   0.1759   0.9503
   5.250   0.5797   0.00855   0.00318   0.0046   0.1676   0.9563
   5.500   0.6142   0.00882   0.00338   0.0032   0.1576   0.9596
   5.750   0.6450   0.00901   0.00357   0.0028   0.1505   0.9656
   6.000   0.6752   0.00928   0.00379   0.0024   0.1394   0.9711
   6.250   0.7080   0.00965   0.00403   0.0013   0.1171   0.9742
   6.500   0.7328   0.01050   0.00456   0.0015   0.0666   0.9799
   6.750   0.7632   0.01096   0.00495   0.0009   0.0580   0.9832
   7.000   0.7972   0.01129   0.00528  -0.0004   0.0542   0.9851
   7.250   0.8302   0.01165   0.00563  -0.0016   0.0514   0.9875
   7.500   0.8616   0.01208   0.00605  -0.0024   0.0488   0.9904
   7.750   0.8931   0.01237   0.00637  -0.0032   0.0474   0.9932
   8.000   0.9279   0.01268   0.00668  -0.0048   0.0459   0.9947
   8.250   0.9623   0.01307   0.00707  -0.0063   0.0442   0.9967
   8.500   0.9958   0.01356   0.00758  -0.0077   0.0425   0.9987
   8.750   1.0289   0.01386   0.00790  -0.0090   0.0417   1.0000
   9.000   1.0436   0.01411   0.00818  -0.0065   0.0410   1.0000
   9.250   1.0596   0.01441   0.00850  -0.0042   0.0402   1.0000
   9.500   1.0762   0.01473   0.00884  -0.0020   0.0395   1.0000
   9.750   1.0926   0.01510   0.00921   0.0001   0.0387   1.0000
  10.000   1.1069   0.01561   0.00974   0.0026   0.0378   1.0000
  10.250   1.1198   0.01619   0.01036   0.0052   0.0370   1.0000
  10.500   1.1374   0.01651   0.01072   0.0071   0.0366   1.0000
  10.750   1.1538   0.01688   0.01113   0.0092   0.0362   1.0000
  11.000   1.1697   0.01727   0.01155   0.0113   0.0356   1.0000
  11.250   1.1858   0.01765   0.01196   0.0134   0.0350   1.0000
  11.500   1.2002   0.01810   0.01244   0.0157   0.0345   1.0000
  11.750   1.2145   0.01855   0.01291   0.0180   0.0339   1.0000
  12.000   1.2248   0.01906   0.01345   0.0209   0.0334   1.0000
  12.250   1.2290   0.01964   0.01405   0.0249   0.0330   1.0000
  12.500   1.2287   0.02049   0.01496   0.0293   0.0324   1.0000
  12.750   1.2357   0.02118   0.01571   0.0323   0.0320   1.0000
  13.000   1.2451   0.02185   0.01644   0.0348   0.0318   1.0000
  13.250   1.2581   0.02240   0.01704   0.0366   0.0314   1.0000
  13.500   1.2688   0.02312   0.01781   0.0386   0.0310   1.0000
  13.750   1.2781   0.02397   0.01873   0.0404   0.0306   1.0000
  14.000   1.2871   0.02491   0.01972   0.0421   0.0302   1.0000
  14.250   1.2962   0.02592   0.02077   0.0436   0.0298   1.0000
  14.500   1.3023   0.02720   0.02211   0.0450   0.0295   1.0000
  14.750   1.3110   0.02840   0.02335   0.0460   0.0290   1.0000
  15.000   1.3136   0.03019   0.02521   0.0469   0.0287   1.0000
  15.250   1.3130   0.03247   0.02756   0.0473   0.0283   1.0000
  15.500   1.3056   0.03566   0.03084   0.0472   0.0279   1.0000
  15.750   1.3030   0.03863   0.03390   0.0467   0.0277   1.0000
  16.000   1.3064   0.04113   0.03650   0.0460   0.0275   1.0000
  16.250   1.3065   0.04415   0.03961   0.0450   0.0273   1.0000
  16.500   1.3071   0.04723   0.04279   0.0438   0.0271   1.0000
  16.750   1.3039   0.05085   0.04650   0.0423   0.0268   1.0000
  17.000   1.2989   0.05477   0.05052   0.0406   0.0266   1.0000
  17.250   1.2924   0.05886   0.05470   0.0389   0.0264   1.0000
  17.500   1.2847   0.06314   0.05907   0.0370   0.0262   1.0000
  17.750   1.2760   0.06759   0.06361   0.0351   0.0260   1.0000
  18.000   1.2662   0.07220   0.06830   0.0331   0.0258   1.0000
  18.250   1.2573   0.07680   0.07298   0.0310   0.0256   1.0000
  18.500   1.2496   0.08139   0.07763   0.0288   0.0252   1.0000
  18.750   1.2395   0.08624   0.08256   0.0266   0.0251   1.0000
  19.000   1.2312   0.09102   0.08741   0.0243   0.0249   1.0000
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