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 |
(e863-il) EPPLER 863 STRUT AIRFOIL | Eppler E863 strut airfoil Max thickness 35.7% at 28.5% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
(e547-il) EPPLER 547 AIRFOIL | Eppler E547 general aviation airfoil Max thickness 17.4% at 40.3% chord Max camber 2% at 30.7% chord | Remove Airfoil details Airfoil plotter |
(e331-il) EPPLER 331 AIRFOIL | Eppler E331 flying wing airfoil Max thickness 11.2% at 28.3% chord Max camber 2.7% at 23.6% chord | Remove Airfoil details Airfoil plotter |
(e66-il) EPPLER 66 AIRFOIL | Eppler E66 low Reynolds number airfoil Max thickness 10.1% at 28.7% chord Max camber 4.1% at 52.3% chord | Remove Airfoil details Airfoil plotter |
(e908-il) EPPLER 908 AIRFOIL | Eppler E908 hydrofoil Max thickness 9% at 44.8% chord Max camber 2.8% at 66.3% chord | Remove Airfoil details Airfoil plotter |
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Polars for (e541-il,e863-il,e547-il,e331-il,e66-il,e908-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 | |
| e863-il | 50,000 | 9 | 2.5 at α=-7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e863-il | 50,000 | 5 | 3.6 at α=-2° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e863-il | 100,000 | 9 | 4.5 at α=-2.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e863-il | 100,000 | 5 | 4 at α=2.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e863-il | 200,000 | 9 | 8.6 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e863-il | 200,000 | 5 | 24 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e863-il | 500,000 | 9 | 48.3 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e863-il | 500,000 | 5 | 44 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e863-il | 1,000,000 | 9 | 64.1 at α=10° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e863-il | 1,000,000 | 5 | 62 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e547-il | 50,000 | 9 | 6.3 at α=-0.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e547-il | 50,000 | 5 | 15 at α=13.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e547-il | 100,000 | 9 | 41.5 at α=10.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e547-il | 100,000 | 5 | 41 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e547-il | 200,000 | 9 | 61.6 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e547-il | 200,000 | 5 | 62 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e547-il | 500,000 | 9 | 90.2 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e547-il | 500,000 | 5 | 85.6 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e547-il | 1,000,000 | 9 | 111.7 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e547-il | 1,000,000 | 5 | 101.9 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e331-il | 50,000 | 9 | 17.4 at α=2.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e331-il | 50,000 | 5 | 27.1 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e331-il | 100,000 | 9 | 40.3 at α=10.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e331-il | 100,000 | 5 | 46.3 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e331-il | 200,000 | 9 | 63 at α=9.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e331-il | 200,000 | 5 | 64.9 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e331-il | 500,000 | 9 | 91.1 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e331-il | 500,000 | 5 | 79.2 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e331-il | 1,000,000 | 9 | 99.1 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e331-il | 1,000,000 | 5 | 93.5 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e66-il | 50,000 | 9 | 40.2 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e66-il | 50,000 | 5 | 40.7 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e66-il | 100,000 | 9 | 64.6 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e66-il | 100,000 | 5 | 63.7 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e66-il | 200,000 | 9 | 91.7 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e66-il | 200,000 | 5 | 86.8 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e66-il | 500,000 | 9 | 128.6 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e66-il | 500,000 | 5 | 113.5 at α=2.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e66-il | 1,000,000 | 9 | 153.2 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e66-il | 1,000,000 | 5 | 121.7 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e908-il | 50,000 | 9 | 22.2 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e908-il | 50,000 | 5 | 24.4 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e908-il | 100,000 | 9 | 32.2 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e908-il | 100,000 | 5 | 41.2 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e908-il | 200,000 | 9 | 47.8 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e908-il | 200,000 | 5 | 62.8 at α=3° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e908-il | 500,000 | 9 | 107.2 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e908-il | 500,000 | 5 | 91.8 at α=2° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e908-il | 1,000,000 | 9 | 137 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e908-il | 1,000,000 | 5 | 117.9 at α=1° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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