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St. CYR 171 (Royer) (stcyr171-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: St. CYR 171 (Royer) (stcyr171-il)
Reynolds number: 500,000
Max Cl/Cd: 42.97 at α=8.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-stcyr171-il-500000.txt
Download as CSV file: xf-stcyr171-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: St. CYR 171 (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
  ------ -------- --------- --------- -------- -------- --------
 -16.250  -0.8854   0.11419   0.11128  -0.0105   1.0000   0.0259
 -16.000  -0.9458   0.09723   0.09408  -0.0212   1.0000   0.0254
 -15.750  -0.9853   0.08512   0.08175  -0.0292   1.0000   0.0251
 -15.500  -1.0073   0.07754   0.07401  -0.0343   1.0000   0.0253
 -15.250  -1.0350   0.07018   0.06646  -0.0386   1.0000   0.0250
 -15.000  -1.0502   0.06520   0.06137  -0.0415   1.0000   0.0253
 -14.750  -1.0675   0.06004   0.05607  -0.0444   1.0000   0.0253
 -14.500  -1.0805   0.05544   0.05134  -0.0471   1.0000   0.0255
 -14.250  -1.0930   0.05079   0.04655  -0.0503   1.0000   0.0257
 -14.000  -1.1044   0.04669   0.04230  -0.0526   1.0000   0.0258
 -13.750  -1.1134   0.04341   0.03887  -0.0536   1.0000   0.0260
 -13.500  -1.1215   0.04082   0.03611  -0.0530   1.0000   0.0263
 -13.250  -1.1257   0.03885   0.03399  -0.0513   1.0000   0.0264
 -13.000  -1.1289   0.03723   0.03223  -0.0487   1.0000   0.0266
 -12.750  -1.1301   0.03609   0.03093  -0.0455   1.0000   0.0269
 -12.500  -1.1253   0.03503   0.02971  -0.0431   1.0000   0.0271
 -12.250  -1.1283   0.03223   0.02680  -0.0397   1.0000   0.0276
 -12.000  -1.1233   0.03059   0.02514  -0.0370   1.0000   0.0281
 -11.750  -1.1141   0.02940   0.02391  -0.0347   1.0000   0.0286
 -11.500  -1.1030   0.02833   0.02278  -0.0325   1.0000   0.0291
 -11.250  -1.0911   0.02730   0.02168  -0.0303   1.0000   0.0297
 -11.000  -1.0783   0.02632   0.02064  -0.0281   1.0000   0.0302
 -10.750  -1.0648   0.02540   0.01962  -0.0260   1.0000   0.0306
 -10.500  -1.0505   0.02452   0.01867  -0.0239   1.0000   0.0311
 -10.250  -1.0352   0.02373   0.01779  -0.0219   1.0000   0.0316
 -10.000  -1.0183   0.02304   0.01702  -0.0201   1.0000   0.0321
  -9.750  -0.9994   0.02249   0.01639  -0.0186   1.0000   0.0325
  -9.500  -0.9904   0.02128   0.01510  -0.0155   1.0000   0.0331
  -9.250  -0.9781   0.02033   0.01410  -0.0128   1.0000   0.0336
  -9.000  -0.9633   0.01954   0.01328  -0.0105   1.0000   0.0343
  -8.750  -0.9467   0.01888   0.01257  -0.0085   1.0000   0.0348
  -8.500  -0.9292   0.01827   0.01193  -0.0066   1.0000   0.0355
  -8.250  -0.9110   0.01772   0.01133  -0.0048   1.0000   0.0363
  -8.000  -0.8921   0.01721   0.01077  -0.0031   1.0000   0.0371
  -7.750  -0.8728   0.01674   0.01025  -0.0014   1.0000   0.0378
  -7.500  -0.8531   0.01630   0.00976   0.0002   1.0000   0.0384
  -7.250  -0.8329   0.01591   0.00931   0.0018   1.0000   0.0388
  -7.000  -0.8142   0.01539   0.00875   0.0036   1.0000   0.0400
  -6.750  -0.7945   0.01497   0.00831   0.0052   1.0000   0.0413
  -6.500  -0.7743   0.01460   0.00792   0.0068   1.0000   0.0430
  -6.250  -0.7536   0.01430   0.00760   0.0083   1.0000   0.0446
  -6.000  -0.7328   0.01403   0.00731   0.0097   1.0000   0.0471
  -5.750  -0.7126   0.01374   0.00707   0.0113   1.0000   0.0531
  -5.500  -0.6925   0.01338   0.00696   0.0128   0.9998   0.0868
  -5.250  -0.6545   0.01320   0.00691   0.0106   0.9968   0.1095
  -5.000  -0.6154   0.01309   0.00686   0.0082   0.9937   0.1236
  -4.750  -0.5789   0.01295   0.00676   0.0064   0.9902   0.1330
  -4.500  -0.5424   0.01283   0.00664   0.0047   0.9865   0.1406
  -4.250  -0.5048   0.01269   0.00655   0.0026   0.9833   0.1491
  -4.000  -0.4656   0.01258   0.00646   0.0003   0.9810   0.1563
  -3.750  -0.4336   0.01241   0.00632  -0.0004   0.9749   0.1636
  -3.500  -0.3964   0.01226   0.00622  -0.0022   0.9707   0.1724
  -3.250  -0.3571   0.01210   0.00613  -0.0045   0.9677   0.1830
  -3.000  -0.3253   0.01191   0.00601  -0.0052   0.9600   0.1950
  -2.750  -0.2876   0.01171   0.00588  -0.0070   0.9547   0.2097
  -2.500  -0.2513   0.01146   0.00570  -0.0085   0.9450   0.2253
  -2.250  -0.2082   0.01121   0.00551  -0.0115   0.9354   0.2420
  -2.000  -0.1688   0.01097   0.00533  -0.0137   0.9201   0.2587
  -1.750  -0.1256   0.01081   0.00520  -0.0167   0.8998   0.2751
  -1.500  -0.0900   0.01083   0.00522  -0.0180   0.8711   0.2886
  -1.250  -0.0585   0.01118   0.00560  -0.0182   0.8381   0.3058
  -1.000  -0.0267   0.01287   0.00759  -0.0179   0.8062   0.3334
  -0.750   0.0018   0.01324   0.00782  -0.0176   0.7791   0.4018
  -0.250   0.0563   0.01439   0.00879  -0.0162   0.7287   0.4159
   0.000   0.0837   0.01493   0.00923  -0.0157   0.7065   0.4221
   0.250   0.1092   0.01506   0.00936  -0.0149   0.6848   0.4258
   0.500   0.1367   0.01584   0.01003  -0.0142   0.6577   0.4334
   0.750   0.1596   0.01556   0.00973  -0.0130   0.6243   0.4396
   1.000   0.1882   0.01746   0.01145  -0.0122   0.5819   0.4554
   1.250   0.2072   0.01609   0.00997  -0.0108   0.5475   0.4572
   1.500   0.2295   0.01578   0.00954  -0.0097   0.5130   0.4603
   1.750   0.2549   0.01633   0.00993  -0.0089   0.4687   0.4645
   2.000   0.2788   0.01781   0.01095  -0.0078   0.3580   0.4656
   2.250   0.3019   0.01888   0.01163  -0.0067   0.2813   0.4659
   2.500   0.3207   0.01744   0.01008  -0.0055   0.2505   0.4670
   2.750   0.3435   0.01708   0.00963  -0.0046   0.2291   0.4683
   3.000   0.3682   0.01703   0.00952  -0.0040   0.2146   0.4692
   3.250   0.3932   0.01709   0.00953  -0.0034   0.2025   0.4694
   3.500   0.4184   0.01716   0.00954  -0.0028   0.1920   0.4696
   3.750   0.4438   0.01720   0.00957  -0.0022   0.1841   0.4698
   4.000   0.4692   0.01723   0.00959  -0.0016   0.1767   0.4702
   4.250   0.4940   0.01734   0.00966  -0.0010   0.1696   0.4704
   4.500   0.5199   0.01735   0.00968  -0.0005   0.1638   0.4706
   4.750   0.5449   0.01744   0.00975   0.0001   0.1573   0.4707
   5.000   0.5701   0.01751   0.00982   0.0007   0.1515   0.4707
   5.250   0.5958   0.01754   0.00987   0.0012   0.1464   0.4706
   5.500   0.6207   0.01763   0.00994   0.0019   0.1406   0.4705
   5.750   0.6458   0.01771   0.01004   0.0025   0.1354   0.4704
   6.000   0.6715   0.01772   0.01007   0.0029   0.1283   0.4706
   6.250   0.6962   0.01781   0.01014   0.0036   0.1206   0.4706
   6.500   0.7212   0.01789   0.01019   0.0042   0.1093   0.4707
   6.750   0.7453   0.01806   0.01029   0.0049   0.0933   0.4706
   7.000   0.7662   0.01854   0.01056   0.0061   0.0604   0.4707
   7.250   0.7874   0.01898   0.01092   0.0073   0.0495   0.4708
   7.500   0.8093   0.01935   0.01129   0.0084   0.0459   0.4709
   7.750   0.8310   0.01973   0.01170   0.0095   0.0434   0.4711
   8.000   0.8531   0.02005   0.01207   0.0106   0.0421   0.4714
   8.250   0.8744   0.02043   0.01250   0.0117   0.0407   0.4718
   8.500   0.8951   0.02083   0.01296   0.0130   0.0396   0.4718
   8.750   0.9143   0.02135   0.01351   0.0144   0.0385   0.4717
   9.000   0.9312   0.02202   0.01422   0.0162   0.0375   0.4715
   9.250   0.9482   0.02266   0.01493   0.0180   0.0367   0.4714
   9.500   0.9675   0.02308   0.01543   0.0194   0.0361   0.4713
   9.750   0.9857   0.02358   0.01600   0.0210   0.0354   0.4713
  10.000   1.0027   0.02414   0.01663   0.0227   0.0347   0.4712
  10.250   1.0187   0.02475   0.01730   0.0245   0.0341   0.4712
  10.500   1.0338   0.02539   0.01801   0.0264   0.0335   0.4711
  10.750   1.0474   0.02609   0.01875   0.0285   0.0328   0.4711
  11.000   1.0579   0.02686   0.01957   0.0310   0.0322   0.4710
  11.250   1.0648   0.02789   0.02064   0.0340   0.0315   0.4710
  11.500   1.0710   0.02948   0.02230   0.0367   0.0309   0.4710
  11.750   1.0811   0.03000   0.02293   0.0393   0.0305   0.4710
  12.000   1.0910   0.03081   0.02385   0.0416   0.0302   0.4710
  12.250   1.1000   0.03169   0.02483   0.0439   0.0298   0.4710
  12.500   1.1079   0.03270   0.02594   0.0461   0.0293   0.4710
  12.750   1.1144   0.03384   0.02717   0.0483   0.0289   0.4710
  13.000   1.1207   0.03491   0.02833   0.0502   0.0284   0.4710
  13.250   1.1249   0.03615   0.02964   0.0522   0.0279   0.4711
  13.500   1.1285   0.03749   0.03107   0.0538   0.0274   0.4711
  13.750   1.1314   0.03901   0.03265   0.0553   0.0269   0.4711
  14.000   1.1343   0.04066   0.03436   0.0565   0.0266   0.4711
  14.250   1.1365   0.04279   0.03654   0.0575   0.0262   0.4712
  14.500   1.1338   0.04612   0.04000   0.0583   0.0257   0.4712
  14.750   1.1265   0.04858   0.04260   0.0589   0.0256   0.4712
  15.000   1.1198   0.05121   0.04538   0.0589   0.0254   0.4711
  15.250   1.1122   0.05409   0.04841   0.0584   0.0253   0.4712
  15.500   1.1029   0.05753   0.05200   0.0574   0.0251   0.4712
  15.750   1.0918   0.06146   0.05609   0.0557   0.0249   0.4711
  16.000   1.0789   0.06604   0.06082   0.0536   0.0248   0.4711
  16.250   1.0645   0.07110   0.06603   0.0508   0.0247   0.4710
  16.500   1.0478   0.07691   0.07199   0.0473   0.0247   0.4709
  16.750   1.0274   0.08380   0.07905   0.0428   0.0245   0.4708
  17.000   1.0039   0.09183   0.08725   0.0375   0.0245   0.4707
  17.250   0.9748   0.10150   0.09709   0.0310   0.0246   0.4706
  17.500   0.9352   0.11397   0.10975   0.0226   0.0247   0.4704
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