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 | ||
(goe685-il) GOE 685 AIRFOIL | Gottingen 685 airfoil Max thickness 13.1% at 19.6% chord Max camber 4.2% at 49.5% chord | Remove Airfoil details Airfoil plotter |
Drawing Options
Polars for (goe685-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| goe685-il | 50,000 | 9 | 25.3 at α=11.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe685-il | 50,000 | 5 | 33.9 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe685-il | 100,000 | 9 | 52.5 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe685-il | 100,000 | 5 | 54.2 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe685-il | 200,000 | 9 | 73.4 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe685-il | 200,000 | 5 | 71.9 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe685-il | 500,000 | 9 | 100.6 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe685-il | 500,000 | 5 | 87.2 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe685-il | 1,000,000 | 9 | 119.2 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe685-il | 1,000,000 | 5 | 96.3 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| Reynolds number calculator | |||||||