Airfoil Comparison
Select airfoils from the airfoil database or add your own airfoils and compare the airfoil shape and lift/drag polars.
| Open full size plan in new window | Open paginated plan in new window | |
| Download PDF file | SVG image as text file | |
| Clear all | ||
(s817-nr) NREL's S817 Airfoil | NREL HAWT airfoil S817 tip 16.0% Dia=30 to 50 m Re=3.0E+6 Clmax(S)=1.10 Clmax(R)=1.08 Restrained max lift coef Max thickness 16% at 51.1% chord Max camber 2.8% at 41.1% chord | Remove Airfoil details Airfoil plotter |
(goe415-il) GOE 415 AIRFOIL | Gottingen 415 airfoil Max thickness 8.5% at 19.9% chord Max camber 3.7% at 29.9% chord | Remove Airfoil details Airfoil plotter |
(ag03-il) AG03 (flat aft bottom) | Drela AG03 (flat aft bottom) airfoil Max thickness 6.2% at 25.7% chord Max camber 2% at 33.1% chord | Remove Airfoil details Airfoil plotter |
(joukowsk0021-jf) Joukovsky f=0% t=21% | Joukowski 21% symmetrical airfoil Max thickness 21% at 26.6% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
Drawing Options
Polars for (s817-nr,goe415-il,ag03-il,joukowsk0021-jf)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s817-nr | 50,000 | 9 | 21.5 at α=11° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s817-nr | 50,000 | 5 | 17.9 at α=10.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s817-nr | 100,000 | 9 | 25.9 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s817-nr | 100,000 | 5 | 26.6 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s817-nr | 200,000 | 9 | 45.3 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s817-nr | 200,000 | 5 | 53 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s817-nr | 500,000 | 9 | 105.3 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s817-nr | 500,000 | 5 | 101.1 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s817-nr | 1,000,000 | 9 | 137.3 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s817-nr | 1,000,000 | 5 | 126 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe415-il | 50,000 | 9 | 34 at α=9.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe415-il | 50,000 | 5 | 37.2 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe415-il | 100,000 | 9 | 52 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe415-il | 100,000 | 5 | 53.6 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe415-il | 200,000 | 9 | 68.9 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe415-il | 200,000 | 5 | 69.6 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe415-il | 500,000 | 9 | 92.2 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe415-il | 500,000 | 5 | 90.9 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe415-il | 1,000,000 | 9 | 109.8 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe415-il | 1,000,000 | 5 | 106.8 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag03-il | 50,000 | 9 | 32.7 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag03-il | 50,000 | 5 | 34.6 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag03-il | 100,000 | 9 | 46.7 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag03-il | 100,000 | 5 | 46.4 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag03-il | 200,000 | 9 | 60.6 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag03-il | 200,000 | 5 | 58.2 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag03-il | 500,000 | 9 | 78.7 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag03-il | 500,000 | 5 | 74.7 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag03-il | 1,000,000 | 9 | 92.3 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag03-il | 1,000,000 | 5 | 88 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| joukowsk0021-jf | 50,000 | 9 | 2.5 at α=11.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| joukowsk0021-jf | 50,000 | 5 | 17.2 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| joukowsk0021-jf | 100,000 | 9 | 29.9 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| joukowsk0021-jf | 100,000 | 5 | 32.4 at α=9.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| joukowsk0021-jf | 200,000 | 9 | 46.2 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| joukowsk0021-jf | 200,000 | 5 | 45.6 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| joukowsk0021-jf | 500,000 | 9 | 66.4 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| joukowsk0021-jf | 500,000 | 5 | 64.1 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| joukowsk0021-jf | 1,000,000 | 9 | 84.3 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| joukowsk0021-jf | 1,000,000 | 5 | 78.9 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| Reynolds number calculator | |||||||