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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(fx78k161-il) FX 78-K-161 | Wortmann FX 78-K-161 airfoil for use with flaps (K) Max thickness 16.2% at 40.2% chord Max camber 2.8% at 37.1% chord | Remove Airfoil details Airfoil plotter |
(fx77w270-il) FX 77-W-270 | Wortmann FX 77-W-270 airfoil for use on wind turbines (W) Max thickness 27.1% at 33.9% chord Max camber 4.3% at 27.9% chord | Remove Airfoil details Airfoil plotter |
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Polars for (fx78k161-il,fx77w270-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| fx78k161-il | 50,000 | 9 | 15.1 at α=13.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 50,000 | 5 | 13.4 at α=12.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 100,000 | 9 | 23.2 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 100,000 | 5 | 24.5 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 200,000 | 9 | 65.3 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 200,000 | 5 | 43.8 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 500,000 | 9 | 81.6 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 500,000 | 5 | 81 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 1,000,000 | 9 | 102.3 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 1,000,000 | 5 | 98.9 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w270-il | 50,000 | 9 | 1.4 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w270-il | 50,000 | 5 | 2.7 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w270-il | 100,000 | 9 | 1.3 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w270-il | 100,000 | 5 | 12.8 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w270-il | 200,000 | 9 | 15.2 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w270-il | 200,000 | 5 | 39.4 at α=8.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w270-il | 500,000 | 9 | 76.6 at α=12° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w270-il | 500,000 | 5 | 80.5 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w270-il | 1,000,000 | 9 | 103.4 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w270-il | 1,000,000 | 5 | 94 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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