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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(goe55-il) GOE 55 AIRFOIL | Gottingen 55 airfoil Max thickness 6.2% at 14.9% chord Max camber 2% at 19.9% chord | Remove Airfoil details Airfoil plotter |
(k3-il) GRUMMAN K-3 AIRFOIL | Grumman K-3 transonic airfoil (GAC .70-.83-17.5) Max thickness 17.3% at 33.1% chord Max camber 2.6% at 74.7% chord | Remove Airfoil details Airfoil plotter |
(e694-il) EPPLER 694 AIRFOIL | Eppler E694 sailplane airfoil Max thickness 15.4% at 40.4% chord Max camber 4.9% at 59.2% chord | Remove Airfoil details Airfoil plotter |
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Polars for (goe55-il,k3-il,e694-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| goe55-il | 50,000 | 9 | 26.3 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe55-il | 50,000 | 5 | 32.7 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe55-il | 100,000 | 9 | 42.4 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe55-il | 100,000 | 5 | 43.3 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe55-il | 200,000 | 9 | 54.5 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe55-il | 200,000 | 5 | 51.9 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe55-il | 500,000 | 9 | 64.7 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe55-il | 500,000 | 5 | 64.6 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe55-il | 1,000,000 | 9 | 72.7 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe55-il | 1,000,000 | 5 | 77.6 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k3-il | 50,000 | 9 | 24.9 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k3-il | 50,000 | 5 | 23 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k3-il | 100,000 | 9 | 30.1 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k3-il | 100,000 | 5 | 33.3 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k3-il | 200,000 | 9 | 49.2 at α=2.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k3-il | 200,000 | 5 | 50.1 at α=1.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k3-il | 500,000 | 9 | 79.4 at α=1.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k3-il | 500,000 | 5 | 65.9 at α=0.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k3-il | 1,000,000 | 9 | 94.2 at α=0.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k3-il | 1,000,000 | 5 | 70.2 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e694-il | 50,000 | 9 | 25.3 at α=12.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e694-il | 50,000 | 5 | 21.4 at α=11.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e694-il | 100,000 | 9 | 40.4 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e694-il | 100,000 | 5 | 36.4 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e694-il | 200,000 | 9 | 61.7 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e694-il | 200,000 | 5 | 59.4 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e694-il | 500,000 | 9 | 113.1 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e694-il | 500,000 | 5 | 111.8 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e694-il | 1,000,000 | 9 | 155.5 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e694-il | 1,000,000 | 5 | 147 at α=3.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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