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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(e209-il) E209 (13.72%) | Eppler E209 low Reynolds number airfoil Max thickness 13.7% at 33.8% chord Max camber 1.6% at 48.1% chord | Remove Airfoil details Airfoil plotter |
(e231-il) E231 | Eppler E231 R/C sailplane airfoil Max thickness 12.3% at 39.4% chord Max camber 2.5% at 39.4% chord | Remove Airfoil details Airfoil plotter |
(e403-il) EPPLER 403 AIRFOIL | Eppler E403 general purpose airfoil Max thickness 15% at 37.9% chord Max camber 3.2% at 75.5% chord | Remove Airfoil details Airfoil plotter |
(doa5-il) DORNIER A-5 AIRFOIL | Dornier A-5 airfoil (reconstruction) (DO 228 wing) Max thickness 16.2% at 40.1% chord Max camber 2.5% at 76% 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 |
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Polars for (e209-il,e231-il,e403-il,doa5-il,e331-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e209-il | 50,000 | 9 | 29.4 at α=10° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e209-il | 50,000 | 5 | 31.2 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e209-il | 100,000 | 9 | 50.8 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e209-il | 100,000 | 5 | 51.5 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e209-il | 200,000 | 9 | 71.8 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e209-il | 200,000 | 5 | 69.9 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e209-il | 500,000 | 9 | 100.1 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e209-il | 500,000 | 5 | 93 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e209-il | 1,000,000 | 9 | 121.6 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e209-il | 1,000,000 | 5 | 103.7 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e231-il | 50,000 | 9 | 32.6 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e231-il | 50,000 | 5 | 30.5 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e231-il | 100,000 | 9 | 53 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e231-il | 100,000 | 5 | 51.1 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e231-il | 200,000 | 9 | 77.9 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e231-il | 200,000 | 5 | 68.5 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e231-il | 500,000 | 9 | 93.4 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e231-il | 500,000 | 5 | 76.1 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e231-il | 1,000,000 | 9 | 102.3 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e231-il | 1,000,000 | 5 | 85.6 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e403-il | 50,000 | 9 | 33.3 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e403-il | 50,000 | 5 | 29.9 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e403-il | 100,000 | 9 | 47.4 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e403-il | 100,000 | 5 | 45.9 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e403-il | 200,000 | 9 | 66.9 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e403-il | 200,000 | 5 | 66.8 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e403-il | 500,000 | 9 | 106.7 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e403-il | 500,000 | 5 | 98.1 at α=2.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e403-il | 1,000,000 | 9 | 138.6 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e403-il | 1,000,000 | 5 | 115.3 at α=1.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| doa5-il | 50,000 | 9 | 29.9 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| doa5-il | 50,000 | 5 | 25.6 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| doa5-il | 100,000 | 9 | 41.3 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| doa5-il | 100,000 | 5 | 35.4 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| doa5-il | 200,000 | 9 | 52 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| doa5-il | 200,000 | 5 | 49.2 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| doa5-il | 500,000 | 9 | 75.7 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| doa5-il | 500,000 | 5 | 59 at α=1.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| doa5-il | 1,000,000 | 9 | 87.6 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| doa5-il | 1,000,000 | 5 | 68.7 at α=6.75° | 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 | |
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