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FX 77-W-121 (fx77w121-il)

FX 77-W-121 - Wortmann FX 77-W-121 airfoil for use on wind turbines (W)


Airfoil fx77w121-il
Details Dat file Parser  
(fx77w121-il) FX 77-W-121
Wortmann FX 77-W-121 airfoil for use on wind turbines (W)
Max thickness 12.1% at 30.9% chord.
Max camber 4.6% at 30.9% chord
Source UIUC Airfoil Coordinates Database
Source dat file
The dat file is in Selig format
FX 77-W-121
1.00000     0.00000
0.99893     0.00086
0.99572     0.00090
0.99039     0.00122
0.98296     0.00181
0.97347     0.00272
0.96194     0.00400
0.94844     0.00563
0.93301     0.00763
0.91573     0.00996
0.89668     0.01292
0.87592     0.01556
0.85355     0.01874
0.82967     0.02252
0.80438     0.02645
0.77779     0.03086
0.75000     0.03550
0.72114     0.04058
0.69134     0.04588
0.66072     0.05157
0.62941     0.05743
0.59755     0.06353
0.56526     0.06968
0.53270     0.07591
0.50000     0.08210
0.46730     0.08815
0.43474     0.09387
0.40245     0.09916
0.37059     0.10362
0.33928     0.10602
0.30866     0.10670
0.27886     0.10584
0.25000     0.10380
0.22221     0.10067
0.19562     0.09665
0.17033     0.09176
0.14645     0.08611
0.12408     0.07963
0.10332     0.07250
0.08427     0.06482
0.06699     0.05688
0.05156     0.04864
0.03806     0.04040
0.02653     0.03223
0.01704     0.02434
0.00961     0.01706
0.00428     0.01064
0.00107     0.00518
0.00000     0.00000
0.00107     -0.00272
0.00428     -0.00574
0.00961     -0.00824
0.01704     -0.01016
0.02653     -0.01151
0.03806     -0.01266
0.05156     -0.01353
0.06699     -0.01422
0.08427     -0.01468
0.10332     -0.01504
0.12408     -0.01521
0.14645     -0.01532
0.17033     -0.01529
0.19562     -0.01522
0.22221     -0.01504
0.25000     -0.01487
0.27886     -0.01458
0.30866     -0.01434
0.33928     -0.01402
0.37059     -0.01378
0.40245     -0.01351
0.43474     -0.01329
0.46730     -0.01300
0.50000     -0.01276
0.53270     -0.01252
0.56526     -0.01233
0.59755     -0.01227
0.62941     -0.01225
0.66072     -0.01225
0.69134     -0.01215
0.72114     -0.01204
0.75000     -0.01184
0.77779     -0.01164
0.80438     -0.01128
0.82967     -0.01093
0.85355     -0.01039
0.87592     -0.00987
0.89668     -0.00906
0.91573     -0.00838
0.93301     -0.00742
0.94844     -0.00635
0.96194     -0.00518
0.97347     -0.00403
0.98296     -0.00299
0.99039     -0.00210
0.99572     -0.00145
0.99893     -0.00100
1.00000     0.00000
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Lednicer format dat file
Selig format dat file

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Polars for FX 77-W-121 (fx77w121-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   fx77w121-il50,00098.1 at α=-1.25°Mach=0 Ncrit=9Xfoil predictionDetails
   fx77w121-il50,000518 at α=3.25°Mach=0 Ncrit=5Xfoil predictionDetails
   fx77w121-il100,000919 at α=2°Mach=0 Ncrit=9Xfoil predictionDetails
   fx77w121-il100,000537.5 at α=8°Mach=0 Ncrit=5Xfoil predictionDetails
   fx77w121-il200,000971.9 at α=10.25°Mach=0 Ncrit=9Xfoil predictionDetails
   fx77w121-il200,000573.6 at α=9.75°Mach=0 Ncrit=5Xfoil predictionDetails
   fx77w121-il500,0009115.5 at α=9°Mach=0 Ncrit=9Xfoil predictionDetails
   fx77w121-il500,0005114.3 at α=8.25°Mach=0 Ncrit=5Xfoil predictionDetails
   fx77w121-il1,000,0009149.2 at α=8°Mach=0 Ncrit=9Xfoil predictionDetails
   fx77w121-il1,000,0005145.3 at α=7.25°Mach=0 Ncrit=5Xfoil predictionDetails
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