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 |
(sd2083-il) SD2083 (9.0%) | Selig/Donovan SD2083 low Reynolds number airfoil Max thickness 9% at 35.2% chord Max camber 2.5% at 49.6% chord | Remove Airfoil details Airfoil plotter |
(sc20714-il) NASA SC(2)-0714 AIRFOIL | NASA SC(2)-0714 airfoil (NASA TP-2969) Max thickness 14% at 37% chord Max camber 2.5% at 81% chord | Remove Airfoil details Airfoil plotter |
(s3025-il) S3025 9.38% | Selig S3025 low Reynolds number airfoil Max thickness 9.4% at 30.9% chord Max camber 3% at 44.9% chord | Remove Airfoil details Airfoil plotter |
(sc21006-il) NASA SC(2)-1006 AIRFOIL | NASA SC(2)-1006 airfoil Max thickness 6% at 30% chord Max camber 2.6% at 73% chord | Remove Airfoil details Airfoil plotter |
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Polars for (s820-nr,sd2083-il,sc20714-il,s3025-il,sc21006-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 | |
| sd2083-il | 50,000 | 9 | 37.4 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2083-il | 50,000 | 5 | 38.3 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd2083-il | 100,000 | 9 | 58.1 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2083-il | 100,000 | 5 | 56.4 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd2083-il | 200,000 | 9 | 80.3 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2083-il | 200,000 | 5 | 74 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd2083-il | 500,000 | 9 | 109 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2083-il | 500,000 | 5 | 93.3 at α=3° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd2083-il | 1,000,000 | 9 | 127.3 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd2083-il | 1,000,000 | 5 | 102.9 at α=2.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20714-il | 50,000 | 9 | 25.4 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20714-il | 50,000 | 5 | 22.4 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20714-il | 100,000 | 9 | 27.4 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20714-il | 100,000 | 5 | 31 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20714-il | 200,000 | 9 | 36 at α=2.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20714-il | 200,000 | 5 | 43.7 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20714-il | 500,000 | 9 | 63.1 at α=0.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20714-il | 500,000 | 5 | 64.2 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20714-il | 1,000,000 | 9 | 81.2 at α=-0.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20714-il | 1,000,000 | 5 | 80 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s3025-il | 50,000 | 9 | 33.9 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s3025-il | 50,000 | 5 | 39.2 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s3025-il | 100,000 | 9 | 57 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s3025-il | 100,000 | 5 | 58.7 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s3025-il | 200,000 | 9 | 80 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s3025-il | 200,000 | 5 | 77.1 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s3025-il | 500,000 | 9 | 109.7 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s3025-il | 500,000 | 5 | 99.4 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s3025-il | 1,000,000 | 9 | 130.2 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s3025-il | 1,000,000 | 5 | 114.3 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc21006-il | 50,000 | 9 | 28.3 at α=1° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc21006-il | 50,000 | 5 | 29.8 at α=0.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc21006-il | 100,000 | 9 | 39.2 at α=0.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc21006-il | 100,000 | 5 | 48.9 at α=-0.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc21006-il | 200,000 | 9 | 66.5 at α=-0.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc21006-il | 200,000 | 5 | 61.3 at α=-1° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc21006-il | 500,000 | 9 | 101.9 at α=-1.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc21006-il | 500,000 | 5 | 92 at α=-2.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc21006-il | 1,000,000 | 9 | 130.4 at α=-2° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc21006-il | 1,000,000 | 5 | 100.2 at α=-3° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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