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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(ah79k135-il) AH 79-K-135/20 B | Althaus AH 79-K-135/20 airfoil for use with flaps (K) Max thickness 13.5% at 40.2% chord Max camber 3.1% at 40.2% chord | Remove Airfoil details Airfoil plotter |
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Polars for (ah79k135-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| ah79k135-il | 50,000 | 9 | 24 at α=10.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k135-il | 50,000 | 5 | 24.3 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k135-il | 100,000 | 9 | 48 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k135-il | 100,000 | 5 | 46.3 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k135-il | 200,000 | 9 | 78.9 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k135-il | 200,000 | 5 | 74.4 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k135-il | 500,000 | 9 | 104.3 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k135-il | 500,000 | 5 | 95 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k135-il | 1,000,000 | 9 | 122.7 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k135-il | 1,000,000 | 5 | 111.7 at α=3.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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