Airfoil Tools
Search 1636 airfoils Google+
You have 0 airfoils loaded.
Your Reynold number range is 50,000 to 1,000,000. (set)

St. CYR 172 (Royer) (stcyr172-il) Xfoil prediction polar at RE=500,000 Ncrit=5


Details Polar file
Airfoil: St. CYR 172 (Royer) (stcyr172-il)
Reynolds number: 500,000
Max Cl/Cd: 61.7 at α=8.25°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-stcyr172-il-500000-n5.txt
Download as CSV file: xf-stcyr172-il-500000-n5.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 =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -18.000  -1.1585   0.08664   0.08206  -0.0275   1.0000   0.0274
 -17.750  -1.1664   0.08211   0.07747  -0.0295   1.0000   0.0277
 -17.500  -1.1744   0.07765   0.07295  -0.0314   1.0000   0.0279
 -17.250  -1.1829   0.07314   0.06837  -0.0334   1.0000   0.0281
 -17.000  -1.1912   0.06874   0.06389  -0.0353   1.0000   0.0283
 -16.750  -1.1992   0.06441   0.05947  -0.0372   1.0000   0.0285
 -16.500  -1.2050   0.06036   0.05534  -0.0389   1.0000   0.0288
 -16.250  -1.2117   0.05627   0.05115  -0.0406   1.0000   0.0290
 -16.000  -1.2165   0.05241   0.04721  -0.0422   1.0000   0.0292
 -15.750  -1.2180   0.04899   0.04369  -0.0437   1.0000   0.0296
 -15.500  -1.2201   0.04562   0.04023  -0.0449   1.0000   0.0299
 -15.250  -1.2205   0.04258   0.03708  -0.0460   1.0000   0.0302
 -15.000  -1.2202   0.03978   0.03418  -0.0467   1.0000   0.0306
 -14.750  -1.2177   0.03735   0.03166  -0.0471   1.0000   0.0309
 -14.500  -1.2150   0.03510   0.02931  -0.0471   1.0000   0.0313
 -14.250  -1.2104   0.03319   0.02729  -0.0469   1.0000   0.0317
 -14.000  -1.2057   0.03145   0.02545  -0.0463   1.0000   0.0319
 -13.750  -1.2036   0.02966   0.02359  -0.0452   1.0000   0.0322
 -13.500  -1.2011   0.02808   0.02195  -0.0437   1.0000   0.0326
 -13.250  -1.1960   0.02680   0.02062  -0.0421   1.0000   0.0330
 -13.000  -1.1896   0.02570   0.01946  -0.0402   1.0000   0.0334
 -12.750  -1.1815   0.02478   0.01849  -0.0382   1.0000   0.0338
 -12.500  -1.1730   0.02395   0.01760  -0.0361   1.0000   0.0343
 -12.250  -1.1642   0.02320   0.01680  -0.0337   1.0000   0.0348
 -12.000  -1.1557   0.02252   0.01606  -0.0311   1.0000   0.0352
 -11.750  -1.1473   0.02189   0.01537  -0.0282   1.0000   0.0356
 -11.500  -1.1393   0.02133   0.01476  -0.0250   1.0000   0.0360
 -11.250  -1.1307   0.02084   0.01421  -0.0218   1.0000   0.0365
 -11.000  -1.1192   0.02036   0.01367  -0.0191   1.0000   0.0369
 -10.750  -1.1077   0.01977   0.01304  -0.0164   1.0000   0.0375
 -10.500  -1.0962   0.01915   0.01240  -0.0138   1.0000   0.0381
 -10.250  -1.0827   0.01863   0.01185  -0.0113   1.0000   0.0387
 -10.000  -1.0680   0.01816   0.01135  -0.0091   1.0000   0.0393
  -9.750  -1.0524   0.01773   0.01089  -0.0069   1.0000   0.0400
  -9.500  -1.0365   0.01731   0.01044  -0.0048   1.0000   0.0407
  -9.250  -1.0201   0.01692   0.01001  -0.0027   1.0000   0.0414
  -9.000  -1.0034   0.01656   0.00961  -0.0006   1.0000   0.0422
  -8.750  -0.9865   0.01623   0.00925   0.0014   1.0000   0.0429
  -8.500  -0.9718   0.01580   0.00880   0.0038   1.0000   0.0440
  -8.250  -0.9484   0.01536   0.00836   0.0045   0.9991   0.0452
  -8.000  -0.9167   0.01495   0.00793   0.0034   0.9967   0.0466
  -7.750  -0.8834   0.01458   0.00754   0.0021   0.9938   0.0482
  -7.500  -0.8509   0.01423   0.00715   0.0010   0.9900   0.0496
  -7.250  -0.8190   0.01379   0.00671   0.0000   0.9857   0.0519
  -7.000  -0.7860   0.01339   0.00631  -0.0012   0.9822   0.0550
  -6.750  -0.7586   0.01305   0.00596  -0.0012   0.9759   0.0582
  -6.500  -0.7282   0.01260   0.00555  -0.0019   0.9709   0.0651
  -6.250  -0.7049   0.01188   0.00506  -0.0013   0.9627   0.0983
  -6.000  -0.6745   0.01142   0.00475  -0.0019   0.9572   0.1259
  -5.750  -0.6444   0.01115   0.00452  -0.0023   0.9498   0.1375
  -5.500  -0.6088   0.01089   0.00428  -0.0039   0.9441   0.1476
  -5.250  -0.5701   0.01058   0.00402  -0.0062   0.9367   0.1589
  -5.000  -0.5268   0.01031   0.00377  -0.0095   0.9294   0.1680
  -4.750  -0.4879   0.01006   0.00355  -0.0118   0.9218   0.1765
  -4.500  -0.4486   0.00981   0.00332  -0.0142   0.9128   0.1867
  -4.250  -0.4153   0.00961   0.00314  -0.0153   0.9015   0.1984
  -4.000  -0.3849   0.00941   0.00298  -0.0158   0.8903   0.2135
  -3.750  -0.3569   0.00922   0.00284  -0.0157   0.8766   0.2307
  -3.500  -0.3308   0.00907   0.00271  -0.0152   0.8612   0.2475
  -3.250  -0.3058   0.00892   0.00261  -0.0144   0.8430   0.2654
  -3.000  -0.2812   0.00880   0.00249  -0.0135   0.8137   0.2833
  -2.750  -0.2582   0.00877   0.00236  -0.0121   0.7643   0.3009
  -2.500  -0.2361   0.00880   0.00227  -0.0107   0.7240   0.3159
  -2.250  -0.2128   0.00885   0.00221  -0.0095   0.6919   0.3279
  -2.000  -0.1897   0.00888   0.00216  -0.0083   0.6584   0.3376
  -1.750  -0.1667   0.00897   0.00212  -0.0070   0.6180   0.3464
  -1.500  -0.1453   0.00910   0.00207  -0.0055   0.5639   0.3553
  -1.250  -0.1226   0.00924   0.00204  -0.0042   0.5160   0.3637
  -1.000  -0.0995   0.00933   0.00202  -0.0031   0.4812   0.3730
  -0.750  -0.0753   0.00942   0.00201  -0.0022   0.4548   0.3826
  -0.500  -0.0509   0.00945   0.00200  -0.0014   0.4344   0.3926
  -0.250  -0.0254   0.00948   0.00199  -0.0007   0.4212   0.4015
   0.000   0.0000   0.00946   0.00199   0.0000   0.4114   0.4113
   0.250   0.0254   0.00948   0.00199   0.0007   0.4015   0.4211
   0.500   0.0509   0.00945   0.00200   0.0014   0.3923   0.4343
   1.000   0.0994   0.00933   0.00202   0.0031   0.3727   0.4813
   1.250   0.1226   0.00924   0.00204   0.0042   0.3637   0.5158
   1.500   0.1451   0.00909   0.00207   0.0055   0.3554   0.5657
   1.750   0.1668   0.00898   0.00212   0.0070   0.3464   0.6177
   2.000   0.1899   0.00889   0.00216   0.0082   0.3377   0.6571
   2.250   0.2129   0.00885   0.00221   0.0094   0.3279   0.6914
   2.500   0.2361   0.00880   0.00227   0.0107   0.3165   0.7243
   2.750   0.2582   0.00877   0.00236   0.0121   0.3006   0.7641
   3.000   0.2812   0.00880   0.00249   0.0135   0.2826   0.8125
   3.250   0.3056   0.00893   0.00261   0.0144   0.2639   0.8428
   3.500   0.3307   0.00907   0.00271   0.0152   0.2472   0.8614
   3.750   0.3567   0.00923   0.00284   0.0157   0.2300   0.8773
   4.000   0.3849   0.00941   0.00298   0.0158   0.2137   0.8904
   4.250   0.4152   0.00961   0.00314   0.0153   0.1981   0.9015
   4.500   0.4486   0.00982   0.00332   0.0142   0.1865   0.9128
   4.750   0.4878   0.01006   0.00355   0.0118   0.1766   0.9217
   5.000   0.5268   0.01031   0.00377   0.0095   0.1678   0.9294
   5.250   0.5698   0.01057   0.00402   0.0063   0.1592   0.9366
   5.500   0.6088   0.01088   0.00428   0.0039   0.1476   0.9441
   5.750   0.6446   0.01115   0.00452   0.0023   0.1375   0.9500
   6.000   0.6748   0.01143   0.00476   0.0019   0.1255   0.9573
   6.250   0.7049   0.01189   0.00506   0.0012   0.0975   0.9630
   6.500   0.7284   0.01261   0.00556   0.0018   0.0646   0.9711
   6.750   0.7587   0.01304   0.00596   0.0012   0.0583   0.9759
   7.000   0.7860   0.01339   0.00632   0.0013   0.0550   0.9822
   7.250   0.8191   0.01379   0.00671   0.0000   0.0519   0.9857
   7.500   0.8512   0.01424   0.00715  -0.0011   0.0496   0.9901
   7.750   0.8835   0.01458   0.00754  -0.0021   0.0482   0.9938
   8.000   0.9166   0.01495   0.00793  -0.0034   0.0467   0.9967
   8.250   0.9484   0.01537   0.00836  -0.0045   0.0452   0.9991
   8.500   0.9715   0.01581   0.00881  -0.0038   0.0439   1.0000
   8.750   0.9864   0.01624   0.00925  -0.0014   0.0429   1.0000
   9.000   1.0034   0.01656   0.00961   0.0006   0.0422   1.0000
   9.250   1.0201   0.01692   0.01001   0.0027   0.0414   1.0000
   9.500   1.0364   0.01731   0.01044   0.0048   0.0407   1.0000
   9.750   1.0524   0.01772   0.01089   0.0069   0.0400   1.0000
  10.000   1.0679   0.01816   0.01135   0.0091   0.0394   1.0000
  10.250   1.0826   0.01864   0.01185   0.0113   0.0387   1.0000
  10.500   1.0961   0.01916   0.01241   0.0138   0.0381   1.0000
  10.750   1.1080   0.01976   0.01303   0.0164   0.0375   1.0000
  11.000   1.1191   0.02037   0.01368   0.0191   0.0369   1.0000
  11.250   1.1302   0.02087   0.01424   0.0219   0.0366   1.0000
  11.500   1.1394   0.02134   0.01477   0.0250   0.0360   1.0000
  11.750   1.1475   0.02190   0.01538   0.0281   0.0356   1.0000
  12.000   1.1560   0.02252   0.01606   0.0310   0.0352   1.0000
  12.250   1.1648   0.02319   0.01679   0.0336   0.0347   1.0000
  12.500   1.1733   0.02395   0.01761   0.0360   0.0343   1.0000
  12.750   1.1820   0.02478   0.01849   0.0382   0.0339   1.0000
  13.000   1.1896   0.02573   0.01950   0.0402   0.0334   1.0000
  13.250   1.1967   0.02679   0.02061   0.0420   0.0330   1.0000
  13.500   1.2022   0.02805   0.02192   0.0436   0.0326   1.0000
  13.750   1.2044   0.02966   0.02359   0.0451   0.0322   1.0000
  14.000   1.2083   0.03130   0.02530   0.0461   0.0318   1.0000
  14.250   1.2133   0.03301   0.02712   0.0467   0.0315   1.0000
  14.500   1.2176   0.03494   0.02914   0.0470   0.0312   1.0000
  14.750   1.2199   0.03723   0.03153   0.0469   0.0309   1.0000
  15.000   1.2215   0.03974   0.03415   0.0465   0.0306   1.0000
  15.250   1.2216   0.04257   0.03707   0.0458   0.0303   1.0000
  15.500   1.2219   0.04556   0.04016   0.0448   0.0299   1.0000
  15.750   1.2212   0.04877   0.04346   0.0435   0.0296   1.0000
  16.000   1.2178   0.05240   0.04719   0.0420   0.0293   1.0000
  16.250   1.2134   0.05622   0.05111   0.0404   0.0291   1.0000
  16.500   1.2076   0.06021   0.05520   0.0388   0.0289   1.0000
  16.750   1.2014   0.06429   0.05936   0.0370   0.0287   1.0000
  17.000   1.1935   0.06861   0.06377   0.0352   0.0284   1.0000
  17.250   1.1857   0.07297   0.06820   0.0332   0.0282   1.0000
  17.500   1.1775   0.07747   0.07277   0.0312   0.0280   1.0000
  17.750   1.1694   0.08198   0.07733   0.0292   0.0277   1.0000
  18.000   1.1614   0.08653   0.08195   0.0272   0.0274   1.0000
<< Back to St. CYR 172 (Royer) (stcyr172-il)

Polar data table (+)

Polar graphs


<< Back to St. CYR 172 (Royer) (stcyr172-il)