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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(s820-nr) NREL's S820 Airfoil | NREL HAWT airfoil S820 tip 16.0% Dia=10 to 20 m Re=1.3E+6 Clmax(S)=1.10 Clmax(R)=1.06 Restrained max lift coef Max thickness 16% at 45.1% chord Max camber 2.1% at 59.7% chord | Remove Airfoil details Airfoil plotter |
(s806a-nr) NREL's S806A Airfoil (modified line 35) | NREL HAWT airfoil S806A tip Max thickness 11.5% at 45% chord Max camber 2.8% at 45% chord | Remove Airfoil details Airfoil plotter |
(sd2030-il) SD2030-086-88 | Selig/Donovan SD2030 low Reynolds number airfoil Max thickness 8.6% at 35.5% chord Max camber 2.2% at 45.3% chord | Remove Airfoil details Airfoil plotter |
(sc20503-il) NASA SC(2)-0503 AIRFOIL | NASA SC(2)-0503 airfoil (NASA TP-2969) Max thickness 3% at 32% chord Max camber 0.8% at 82% chord | Remove Airfoil details Airfoil plotter |
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Polars for (s820-nr,s806a-nr,sd2030-il,sc20503-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s820-nr | 50,000 | 9 | 26.8 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s820-nr | 50,000 | 5 | 22.4 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s820-nr | 100,000 | 9 | 39.3 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s820-nr | 100,000 | 5 | 37 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s820-nr | 200,000 | 9 | 65.4 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s820-nr | 200,000 | 5 | 65.9 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s820-nr | 500,000 | 9 | 105.3 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s820-nr | 500,000 | 5 | 95.1 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s820-nr | 1,000,000 | 9 | 129.5 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s820-nr | 1,000,000 | 5 | 109.8 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s806a-nr | 50,000 | 9 | 34.4 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s806a-nr | 100,000 | 9 | 53.3 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s806a-nr | 200,000 | 9 | 76.1 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s806a-nr | 500,000 | 9 | 107.6 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s806a-nr | 1,000,000 | 9 | 119.2 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2030-il | 50,000 | 9 | 37.6 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2030-il | 50,000 | 5 | 37.1 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd2030-il | 100,000 | 9 | 56.3 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2030-il | 100,000 | 5 | 52.8 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd2030-il | 200,000 | 9 | 77.3 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2030-il | 200,000 | 5 | 68.9 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd2030-il | 500,000 | 9 | 104.8 at α=2.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2030-il | 500,000 | 5 | 81 at α=2.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd2030-il | 1,000,000 | 9 | 112.4 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2030-il | 1,000,000 | 5 | 87.3 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20503-il | 50,000 | 9 | 19.4 at α=1.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20503-il | 50,000 | 5 | 19.4 at α=1.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20503-il | 100,000 | 9 | 26.5 at α=1.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20503-il | 100,000 | 5 | 24 at α=1° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20503-il | 200,000 | 9 | 52.3 at α=2.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20503-il | 200,000 | 5 | 32.1 at α=0.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20503-il | 500,000 | 9 | 50.2 at α=0.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20503-il | 500,000 | 5 | 35.3 at α=1.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20503-il | 1,000,000 | 9 | 71.3 at α=2° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20503-il | 1,000,000 | 5 | 42.8 at α=1.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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