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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(e541-il) EPPLER 541 AIRFOIL | Eppler E541 general aviation airfoil Max thickness 16.6% at 46.2% chord Max camber 1.7% at 36.3% chord | Remove Airfoil details Airfoil plotter |
(e435-il) EPPLER 435 AIRFOIL | Eppler E435 sailplane airfoil Max thickness 16.2% at 40.9% chord Max camber 4.4% at 56.2% chord | Remove Airfoil details Airfoil plotter |
(e49-il) EPPLER 49 AIRFOIL | Eppler E49 low Reynolds number airfoil Max thickness 7.2% at 38.4% chord Max camber 6.5% at 62.2% chord | Remove Airfoil details Airfoil plotter |
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Polars for (e541-il,e435-il,e49-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e541-il | 50,000 | 9 | 25.2 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e541-il | 50,000 | 5 | 21 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e541-il | 100,000 | 9 | 40.5 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e541-il | 100,000 | 5 | 29.3 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e541-il | 200,000 | 9 | 46.8 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e541-il | 200,000 | 5 | 50.7 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e541-il | 500,000 | 9 | 78.3 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e541-il | 500,000 | 5 | 79.8 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e541-il | 1,000,000 | 9 | 106.4 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e541-il | 1,000,000 | 5 | 96.7 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 50,000 | 9 | 7.6 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 50,000 | 5 | 19.4 at α=11.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 100,000 | 9 | 48 at α=10.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 100,000 | 5 | 44.8 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 200,000 | 9 | 79.3 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 200,000 | 5 | 78.3 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 500,000 | 9 | 119.5 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 500,000 | 5 | 111.8 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 1,000,000 | 9 | 148.7 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 1,000,000 | 5 | 133 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e49-il | 50,000 | 9 | 37.5 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 50,000 | 5 | 34.3 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e49-il | 100,000 | 9 | 56.6 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 100,000 | 5 | 50.9 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e49-il | 200,000 | 9 | 82.3 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 200,000 | 5 | 65 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e49-il | 500,000 | 9 | 119.1 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 1,000,000 | 9 | 155.5 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 1,000,000 | 5 | 123.1 at α=0.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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