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 | ||
(fx77w258-il) WORTMANN FX 77-W-258 AIRFOIL | Wortmann FX 77-W-258 wind turbine airfoil Max thickness 26.1% at 30.9% chord Max camber 4.3% at 27.9% chord | Remove Airfoil details Airfoil plotter |
(goe627-il) GOE 627 AIRFOIL | Gottingen 627 airfoil Max thickness 15.8% at 30% chord Max camber 4.1% at 30% chord | Remove Airfoil details Airfoil plotter |
(goe421-il) GOE 421 AIRFOIL | Gottingen 421 airfoil Max thickness 19% at 29.3% chord Max camber 8.1% at 49.3% chord | Remove Airfoil details Airfoil plotter |
(ah81131-il) AH 81-131 | Althaus AH 81-131 airfoil Max thickness 13.1% at 40.2% chord Max camber 2.8% at 40.2% chord | Remove Airfoil details Airfoil plotter |
(goe481-il) GOE 481 AIRFOIL | Gottingen 481 airfoil Max thickness 13.4% at 9.6% chord Max camber 8.8% at 39.4% chord | Remove Airfoil details Airfoil plotter |
Drawing Options
Polars for (fx77w258-il,goe627-il,goe421-il,ah81131-il,goe481-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| fx77w258-il | 50,000 | 9 | 1.5 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w258-il | 50,000 | 5 | 2.5 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w258-il | 100,000 | 9 | 1.2 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w258-il | 100,000 | 5 | 10.5 at α=2° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w258-il | 200,000 | 9 | 9.5 at α=0.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w258-il | 200,000 | 5 | 36.5 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w258-il | 500,000 | 9 | 76 at α=11° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w258-il | 500,000 | 5 | 83.2 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w258-il | 1,000,000 | 9 | 112.5 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w258-il | 1,000,000 | 5 | 103.6 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe627-il | 50,000 | 9 | 25.4 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe627-il | 50,000 | 5 | 29.1 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe627-il | 100,000 | 9 | 43.3 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe627-il | 100,000 | 5 | 41.5 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe627-il | 200,000 | 9 | 55.2 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe627-il | 200,000 | 5 | 52.8 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe627-il | 500,000 | 9 | 74.2 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe627-il | 500,000 | 5 | 71.9 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe627-il | 1,000,000 | 9 | 93.4 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe627-il | 1,000,000 | 5 | 90.5 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe421-il | 50,000 | 9 | 4.4 at α=13° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe421-il | 50,000 | 5 | 11.8 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe421-il | 100,000 | 9 | 31.4 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe421-il | 100,000 | 5 | 34.3 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe421-il | 200,000 | 9 | 68.2 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe421-il | 200,000 | 5 | 60.4 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe421-il | 500,000 | 9 | 96.5 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe421-il | 500,000 | 5 | 76.6 at α=2° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe421-il | 1,000,000 | 9 | 103.9 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe421-il | 1,000,000 | 5 | 86.2 at α=1.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 50,000 | 9 | 23.4 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 50,000 | 5 | 21.5 at α=9.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 100,000 | 9 | 37.5 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 100,000 | 5 | 38.1 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 200,000 | 9 | 72.2 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 200,000 | 5 | 70.6 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 500,000 | 9 | 110 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 500,000 | 5 | 95.8 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 1,000,000 | 9 | 126.8 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 1,000,000 | 5 | 104.8 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe481-il | 50,000 | 9 | 7 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe481-il | 50,000 | 5 | 28.9 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe481-il | 100,000 | 9 | 43 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe481-il | 100,000 | 5 | 41.1 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe481-il | 200,000 | 9 | 53.4 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe481-il | 200,000 | 5 | 48.9 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe481-il | 500,000 | 9 | 63.4 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe481-il | 500,000 | 5 | 58.3 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe481-il | 1,000,000 | 9 | 70.3 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe481-il | 1,000,000 | 5 | 63.8 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| Reynolds number calculator | |||||||