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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(s816-nr) NREL's S816 Airfoil | NREL HAWT airfoil S816 primary 21.0% Dia=30 to 50 m Re=4.0E+6 Clmax(S)=1.20 Clmax(R)=1.17 Restrained max lift coef Max thickness 21% at 39% chord Max camber 1.8% at 67.6% chord | Remove Airfoil details Airfoil plotter |
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Polars for (s816-nr)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s816-nr | 50,000 | 9 | 16.9 at α=13° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s816-nr | 50,000 | 5 | 12.9 at α=12.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s816-nr | 100,000 | 9 | 21 at α=11.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s816-nr | 100,000 | 5 | 22.2 at α=10.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s816-nr | 200,000 | 9 | 59 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s816-nr | 200,000 | 5 | 60.6 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s816-nr | 500,000 | 9 | 96.9 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s816-nr | 500,000 | 5 | 91 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s816-nr | 1,000,000 | 9 | 121.4 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s816-nr | 1,000,000 | 5 | 108.8 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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