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 | ||
(e328-il) EPPLER 328 AIRFOIL | Eppler E328 flying wing airfoil Max thickness 13.3% at 31.5% chord Max camber 3% at 22.1% chord | Remove Airfoil details Airfoil plotter |
(ls417-il) NASA/LANGLEY LS(1)-0417 (GA(W)-1) AIRFOIL | NASA/Langley/Whitcomb LS(1)-0417 (GA(W)-1) general aviation airfoil Max thickness 17% at 40% chord Max camber 2.4% at 65% chord | Remove Airfoil details Airfoil plotter |
(e682-il) EPPLER 682 AIRFOIL | Eppler E682 sailplane airfoil Max thickness 15.3% at 40.4% chord Max camber 2.9% at 40.4% chord | Remove Airfoil details Airfoil plotter |
Drawing Options
Polars for (e328-il,ls417-il,e682-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e328-il | 50,000 | 9 | 17.6 at α=1° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e328-il | 50,000 | 5 | 27.5 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e328-il | 100,000 | 9 | 37.7 at α=12.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e328-il | 100,000 | 5 | 46.6 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e328-il | 200,000 | 9 | 63.5 at α=9.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e328-il | 200,000 | 5 | 63.6 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e328-il | 500,000 | 9 | 88.9 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e328-il | 500,000 | 5 | 86.7 at α=8.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e328-il | 1,000,000 | 9 | 111.1 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e328-il | 1,000,000 | 5 | 105.1 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ls417-il | 50,000 | 9 | 29.7 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ls417-il | 50,000 | 5 | 25 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ls417-il | 100,000 | 9 | 42.9 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ls417-il | 100,000 | 5 | 41 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ls417-il | 200,000 | 9 | 61 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ls417-il | 200,000 | 5 | 61.7 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ls417-il | 500,000 | 9 | 92.9 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ls417-il | 500,000 | 5 | 82.1 at α=2.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ls417-il | 1,000,000 | 9 | 112.6 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ls417-il | 1,000,000 | 5 | 91.3 at α=1° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e682-il | 50,000 | 9 | 25.1 at α=12° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e682-il | 50,000 | 5 | 21.5 at α=11.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e682-il | 100,000 | 9 | 43.2 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e682-il | 100,000 | 5 | 37.8 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e682-il | 200,000 | 9 | 75.4 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e682-il | 200,000 | 5 | 58.1 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e682-il | 500,000 | 9 | 91.2 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e682-il | 500,000 | 5 | 87.7 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e682-il | 1,000,000 | 9 | 115.7 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e682-il | 1,000,000 | 5 | 105.7 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| Reynolds number calculator | |||||||