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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(e637-il) EPPLER 637 AIRFOIL | Eppler E637 airfoil Max thickness 12.1% at 27.6% chord Max camber 3.6% at 23.6% chord | Remove Airfoil details Airfoil plotter |
(c5c-il) LOCKHEED C-5A BL576 AIRFOIL | Lockheed-Georgia C-5A transonic wing airfoils Max thickness 11.1% at 40% chord Max camber 1.4% at 65% chord | Remove Airfoil details Airfoil plotter |
(e818-il) EPPLER 818 HYDROFOIL AIRFOIL | Eppler E818 hydrofoil Max thickness 9.4% at 33.1% chord Max camber 2.8% at 67% chord | Remove Airfoil details Airfoil plotter |
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Polars for (e637-il,c5c-il,e818-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e637-il | 50,000 | 9 | 14.9 at α=1° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e637-il | 50,000 | 5 | 24.9 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e637-il | 100,000 | 9 | 31.5 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e637-il | 100,000 | 5 | 44.6 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e637-il | 200,000 | 9 | 62.2 at α=11° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e637-il | 200,000 | 5 | 67.2 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e637-il | 500,000 | 9 | 98 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e637-il | 500,000 | 5 | 98.4 at α=8.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e637-il | 1,000,000 | 9 | 126.8 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e637-il | 1,000,000 | 5 | 117.4 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5c-il | 50,000 | 9 | 31.7 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5c-il | 50,000 | 5 | 30.5 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5c-il | 100,000 | 9 | 48.2 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5c-il | 100,000 | 5 | 44.1 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5c-il | 200,000 | 9 | 67.3 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5c-il | 200,000 | 5 | 55.2 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5c-il | 500,000 | 9 | 78.4 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5c-il | 500,000 | 5 | 62.3 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5c-il | 1,000,000 | 9 | 82.7 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5c-il | 1,000,000 | 5 | 77.6 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e818-il | 50,000 | 9 | 23.5 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e818-il | 50,000 | 5 | 26.1 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e818-il | 100,000 | 9 | 66.1 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e818-il | 100,000 | 5 | 40.9 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e818-il | 200,000 | 9 | 56.4 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e818-il | 200,000 | 5 | 67.3 at α=2.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e818-il | 500,000 | 9 | 104.2 at α=2.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e818-il | 500,000 | 5 | 96.1 at α=1.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e818-il | 1,000,000 | 9 | 126.6 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e818-il | 1,000,000 | 5 | 110.2 at α=1.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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