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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(e171-il) (Dicke 12.28%) | Eppler E171 low Reynolds number airfoil Max thickness 12.3% at 32.4% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
(ste87151-il) EPPLER STE 871-514 AIRFOIL | Eppler STE 871-514 airfoil Max thickness 13.9% at 47.3% chord Max camber 2.5% at 79% chord | Remove Airfoil details Airfoil plotter |
(goe400-il) GOE 400 AIRFOIL | Gottingen 400 airfoil Max thickness 6.1% at 20% chord Max camber 4.9% at 40% chord | Remove Airfoil details Airfoil plotter |
(e657-il) EPPLER 657 AIRFOIL | Eppler E657 sailplane airfoil Max thickness 15.6% at 37% chord Max camber 4.6% at 47.6% chord | Remove Airfoil details Airfoil plotter |
(goe372-il) GOE 372 AIRFOIL | Gottingen 372 airfoil Max thickness 6.2% at 29.9% chord Max camber 4.3% at 39.9% chord | Remove Airfoil details Airfoil plotter |
(goe409-il) GOE 409 AIRFOIL | Gottingen 409 airfoil Max thickness 12.7% at 30% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
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Polars for (e171-il,ste87151-il,goe400-il,e657-il,goe372-il,goe409-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e171-il | 50,000 | 9 | 29.2 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e171-il | 50,000 | 5 | 29.3 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e171-il | 100,000 | 9 | 43.5 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e171-il | 100,000 | 5 | 41.5 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e171-il | 200,000 | 9 | 56.9 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e171-il | 200,000 | 5 | 47.8 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e171-il | 500,000 | 9 | 65.4 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e171-il | 500,000 | 5 | 56.8 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e171-il | 1,000,000 | 9 | 68.7 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e171-il | 1,000,000 | 5 | 68.5 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ste87151-il | 50,000 | 9 | 28 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ste87151-il | 50,000 | 5 | 25.8 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ste87151-il | 100,000 | 9 | 40.6 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ste87151-il | 100,000 | 5 | 36.4 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ste87151-il | 200,000 | 9 | 55.2 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ste87151-il | 200,000 | 5 | 52.2 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ste87151-il | 500,000 | 9 | 81.8 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ste87151-il | 500,000 | 5 | 79.1 at α=2.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ste87151-il | 1,000,000 | 9 | 113.9 at α=2.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ste87151-il | 1,000,000 | 5 | 104.5 at α=1.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe400-il | 50,000 | 9 | 37.4 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe400-il | 50,000 | 5 | 41.9 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe400-il | 100,000 | 9 | 59.1 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe400-il | 100,000 | 5 | 61.4 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe400-il | 200,000 | 9 | 81 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe400-il | 200,000 | 5 | 79.9 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe400-il | 500,000 | 9 | 109.8 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe400-il | 500,000 | 5 | 88.8 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe400-il | 1,000,000 | 9 | 126 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe400-il | 1,000,000 | 5 | 101.4 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e657-il | 50,000 | 9 | 7.5 at α=11° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e657-il | 50,000 | 5 | 18.7 at α=12° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e657-il | 100,000 | 9 | 41.7 at α=11° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e657-il | 100,000 | 5 | 35.3 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e657-il | 200,000 | 9 | 72 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e657-il | 200,000 | 5 | 70.2 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e657-il | 500,000 | 9 | 126.2 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e657-il | 500,000 | 5 | 117.8 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e657-il | 1,000,000 | 9 | 160.6 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e657-il | 1,000,000 | 5 | 145 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe372-il | 50,000 | 9 | 43.2 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe372-il | 50,000 | 5 | 42.7 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe372-il | 100,000 | 9 | 62.7 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe372-il | 100,000 | 5 | 60.1 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe372-il | 200,000 | 9 | 82.5 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe372-il | 200,000 | 5 | 77.1 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe372-il | 500,000 | 9 | 108.6 at α=2.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe372-il | 500,000 | 5 | 93 at α=2.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe372-il | 1,000,000 | 9 | 126.5 at α=1.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe372-il | 1,000,000 | 5 | 89.6 at α=2.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe409-il | 50,000 | 9 | 28.7 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe409-il | 50,000 | 5 | 26.6 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe409-il | 100,000 | 9 | 38.6 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe409-il | 100,000 | 5 | 32.5 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe409-il | 200,000 | 9 | 40.9 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe409-il | 200,000 | 5 | 37.7 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe409-il | 500,000 | 9 | 46.5 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe409-il | 500,000 | 5 | 50.7 at α=9.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe409-il | 1,000,000 | 9 | 64.2 at α=13° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe409-il | 1,000,000 | 5 | 70.5 at α=11.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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