Airfoil Comparison
Select airfoils from the airfoil database or add your own airfoils and compare the airfoil shape and lift/drag polars.
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(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 | Remove Airfoil details Airfoil plotter |
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Polars for (fx77w121-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| fx77w121-il | 50,000 | 9 | 8.1 at α=-1.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 50,000 | 5 | 18 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 100,000 | 9 | 19 at α=2° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 100,000 | 5 | 37.5 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 200,000 | 9 | 71.9 at α=10.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 200,000 | 5 | 73.6 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 500,000 | 9 | 115.5 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 500,000 | 5 | 114.3 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 1,000,000 | 9 | 149.2 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 1,000,000 | 5 | 145.3 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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