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E221 (9.39%) (e221-il)

E221 (9.39%) - Eppler E221 low Reynolds number airfoil


Airfoil e221-il
Details Dat file Parser  
(e221-il) E221 (9.39%)
Eppler E221 low Reynolds number airfoil
Max thickness 9.4% at 28.1% chord.
Max camber 1.6% at 32.6% chord
Source UIUC Airfoil Coordinates Database
Source dat file
The dat file is in Selig format
E221  (9.39%)                
   1.00000  0.00000
   0.99659  0.00010
   0.98654  0.00064
   0.97031  0.00191
   0.94842  0.00392
   0.92123  0.00654
   0.88904  0.00975
   0.85230  0.01365
   0.81161  0.01826
   0.76762  0.02349
   0.72098  0.02922
   0.67239  0.03526
   0.62249  0.04137
   0.57192  0.04726
   0.52121  0.05263
   0.47082  0.05725
   0.42120  0.06094
   0.37279  0.06356
   0.32600  0.06499
   0.28121  0.06514
   0.23874  0.06397
   0.19888  0.06153
   0.16195  0.05790
   0.12825  0.05319
   0.09806  0.04752
   0.07162  0.04101
   0.04912  0.03384
   0.03071  0.02621
   0.01651  0.01835
   0.00657  0.01059
   0.00099  0.00344
   0.00050 -0.00225
   0.00577 -0.00702
   0.01659 -0.01171
   0.03256 -0.01597
   0.05351 -0.01967
   0.07930 -0.02272
   0.10972 -0.02512
   0.14450 -0.02688
   0.18331 -0.02803
   0.22575 -0.02863
   0.27137 -0.02873
   0.31968 -0.02840
   0.37012 -0.02771
   0.42212 -0.02670
   0.47509 -0.02545
   0.52841 -0.02399
   0.58145 -0.02237
   0.63360 -0.02062
   0.68425 -0.01879
   0.73281 -0.01689
   0.77870 -0.01495
   0.82140 -0.01300
   0.86038 -0.01104
   0.89520 -0.00908
   0.92541 -0.00707
   0.95082 -0.00490
   0.97139 -0.00276
   0.98687 -0.00110
   0.99664 -0.00023
   1.00000  0.00000
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Selig format dat file

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Polars for E221 (9.39%) (e221-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   e221-il50,000929.4 at α=7.75°Mach=0 Ncrit=9Xfoil predictionDetails
   e221-il50,000533.7 at α=7°Mach=0 Ncrit=5Xfoil predictionDetails
   e221-il100,000947 at α=6.75°Mach=0 Ncrit=9Xfoil predictionDetails
   e221-il100,000548.2 at α=6.25°Mach=0 Ncrit=5Xfoil predictionDetails
   e221-il200,000964.6 at α=6.25°Mach=0 Ncrit=9Xfoil predictionDetails
   e221-il200,000562.2 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
   e221-il500,000986.7 at α=5.5°Mach=0 Ncrit=9Xfoil predictionDetails
   e221-il500,000579.2 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
   e221-il1,000,0009100.9 at α=4.75°Mach=0 Ncrit=9Xfoil predictionDetails
   e221-il1,000,000590.1 at α=4.25°Mach=0 Ncrit=5Xfoil predictionDetails
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