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S2091-101-83 (s2091-il)

S2091-101-83 - Selig S2091 low Reynolds number airfoil


Airfoil s2091-il
Details Dat file Parser  
(s2091-il) S2091-101-83
Selig S2091 low Reynolds number airfoil
Max thickness 10.1% at 26% chord.
Max camber 3.7% at 39.5% chord
Source UIUC Airfoil Coordinates Database
Source dat file
The dat file is in Selig format
   S2091-101-83
   1.00000  0.0
   0.99674  0.00035
   0.98707  0.00150
   0.97126  0.00367
   0.94970  0.00699
   0.92292  0.01150
   0.89147  0.01713
   0.85595  0.02373
   0.81694  0.03107
   0.77501  0.03888
   0.73071  0.04688
   0.68455  0.05478
   0.63701  0.06231
   0.58856  0.06920
   0.53966  0.07525
   0.49073  0.08028
   0.44220  0.08415
   0.39450  0.08676
   0.34805  0.08804
   0.30323  0.08793
   0.26043  0.08643
   0.22002  0.08355
   0.18232  0.07933
   0.14765  0.07381
   0.11622  0.06708
   0.08823  0.05927
   0.06384  0.05059
   0.04320  0.04130
   0.02645  0.03168
   0.01374  0.02204
   0.00517  0.01269
   0.00076  0.00401
   0.00058 -0.00312
   0.00575 -0.00864
   0.01662 -0.01315
   0.03263 -0.01645
   0.05397 -0.01844
   0.08063 -0.01935
   0.11237 -0.01939
   0.14884 -0.01872
   0.18960 -0.01750
   0.23417 -0.01580
   0.28206 -0.01373
   0.33272 -0.01141
   0.38556 -0.00894
   0.43996 -0.00642
   0.49529 -0.00397
   0.55090 -0.00170
   0.60607  0.00025
   0.66007  0.00182
   0.71218  0.00296
   0.76169  0.00367
   0.80796  0.00397
   0.85037  0.00391
   0.88835  0.00354
   0.92142  0.00295
   0.94912  0.00222
   0.97110  0.00144
   0.98706  0.00073
   0.99675  0.00020
   1.00001  0.00000
Dat file parser warnings
  • Line 62 - X value too large but included: 1.00001 0.00000
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Polars for S2091-101-83 (s2091-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   s2091-il50,000928.9 at α=9.5°Mach=0 Ncrit=9Xfoil predictionDetails
   s2091-il50,000538.2 at α=7°Mach=0 Ncrit=5Xfoil predictionDetails
   s2091-il100,000954.7 at α=6.75°Mach=0 Ncrit=9Xfoil predictionDetails
   s2091-il100,000557.9 at α=6.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s2091-il200,000977.9 at α=6°Mach=0 Ncrit=9Xfoil predictionDetails
   s2091-il200,000576.4 at α=5.5°Mach=0 Ncrit=5Xfoil predictionDetails
   s2091-il500,0009107.4 at α=5.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s2091-il500,000599.5 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
   s2091-il1,000,0009128.2 at α=4.75°Mach=0 Ncrit=9Xfoil predictionDetails
   s2091-il1,000,0005116.2 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
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