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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(s802-nr) NREL's S802 Airfoil | NREL HAWT airfoil S802 tip Not recommended Max thickness 11.5% at 37.9% chord Max camber 3.8% at 47.3% chord | Remove Airfoil details Airfoil plotter |
(e393-il) EPPLER 393 AIRFOIL | Eppler E393 airfoil Max thickness 11.5% at 32.3% chord Max camber 4% at 46% chord | Remove Airfoil details Airfoil plotter |
(e377m-il) EPPLER 377 (MODIFIED) AIRFOIL | Eppler E377 (modified) ultralight airfoil Max thickness 3.8% at 6.1% chord Max camber 9.2% at 32.6% chord | Remove Airfoil details Airfoil plotter |
(a18-il) A18 (original) | Archer A18 F1C free flight airfoil(original) Max thickness 7.3% at 30% chord Max camber 3.9% at 45% chord | Remove Airfoil details Airfoil plotter |
(e396-il) EPPLER 396 AIRFOIL | Eppler E396 human powered aircraft airfoil Max thickness 13.1% at 29.5% chord Max camber 5.4% at 52.1% chord | Remove Airfoil details Airfoil plotter |
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Polars for (s802-nr,e393-il,e377m-il,a18-il,e396-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s802-nr | 50,000 | 9 | 36.7 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s802-nr | 50,000 | 5 | 33.8 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s802-nr | 100,000 | 9 | 61 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s802-nr | 100,000 | 5 | 60.2 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s802-nr | 200,000 | 9 | 91.3 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s802-nr | 200,000 | 5 | 85.7 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s802-nr | 500,000 | 9 | 124.3 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s802-nr | 500,000 | 5 | 113.6 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s802-nr | 1,000,000 | 9 | 149.5 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s802-nr | 1,000,000 | 5 | 132.5 at α=2.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e393-il | 50,000 | 9 | 35.4 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e393-il | 50,000 | 5 | 35.3 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e393-il | 100,000 | 9 | 60.6 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e393-il | 100,000 | 5 | 62 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e393-il | 200,000 | 9 | 87.5 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e393-il | 200,000 | 5 | 86.4 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e393-il | 500,000 | 9 | 124.7 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e393-il | 500,000 | 5 | 117.5 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e393-il | 1,000,000 | 9 | 152.7 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e393-il | 1,000,000 | 5 | 135.4 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e377m-il | 50,000 | 9 | 17.8 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e377m-il | 50,000 | 5 | 36.8 at α=9.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e377m-il | 100,000 | 9 | 61.6 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e377m-il | 100,000 | 5 | 63.8 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e377m-il | 200,000 | 9 | 86.4 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e377m-il | 200,000 | 5 | 86.7 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e377m-il | 500,000 | 9 | 117.7 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e377m-il | 500,000 | 5 | 115.6 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e377m-il | 1,000,000 | 9 | 142.6 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e377m-il | 1,000,000 | 5 | 137 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| a18-il | 50,000 | 9 | 44 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| a18-il | 50,000 | 5 | 44.6 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| a18-il | 100,000 | 9 | 65 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| a18-il | 100,000 | 5 | 63.6 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| a18-il | 200,000 | 9 | 86.3 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| a18-il | 200,000 | 5 | 80.7 at α=2.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| a18-il | 500,000 | 9 | 111.9 at α=2° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| a18-il | 500,000 | 5 | 99.6 at α=2° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| a18-il | 1,000,000 | 9 | 124.7 at α=2° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| a18-il | 1,000,000 | 5 | 109.6 at α=2° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e396-il | 50,000 | 9 | 25.6 at α=12° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e396-il | 50,000 | 5 | 22.7 at α=11.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e396-il | 100,000 | 9 | 54.7 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e396-il | 100,000 | 5 | 57.7 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e396-il | 200,000 | 9 | 89.3 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e396-il | 200,000 | 5 | 90.3 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e396-il | 500,000 | 9 | 135.1 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e396-il | 500,000 | 5 | 128.1 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e396-il | 1,000,000 | 9 | 169.3 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e396-il | 1,000,000 | 5 | 148 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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