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 | ||
(fx84w175-il) FX 84-W-175 | Wortmann FX 84-W-175 airfoil for use on wind turbines (W) Max thickness 17.6% at 37.1% chord Max camber 4.4% at 43.5% chord | Remove Airfoil details Airfoil plotter |
(fx75vg166-il) FX 75-VG-166/22 | Wortmann FX 75-VG-166/22 variable geometry airfoil Max thickness 16.7% at 43.5% chord Max camber 2.4% at 40.2% chord | Remove Airfoil details Airfoil plotter |
(fx77w121-il) FX 77-W-121 | Wortmann FX 77-W-121 airfoil for use on wind turbines (W) Max thickness 12.1% at 30.9% chord Max camber 4.6% at 30.9% chord | Remove Airfoil details Airfoil plotter |
(fx78k161-il) FX 78-K-161 | Wortmann FX 78-K-161 airfoil for use with flaps (K) Max thickness 16.2% at 40.2% chord Max camber 2.8% at 37.1% chord | Remove Airfoil details Airfoil plotter |
Drawing Options
Polars for (fx84w175-il,fx75vg166-il,fx77w121-il,fx78k161-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| fx84w175-il | 50,000 | 9 | 4.5 at α=12° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx84w175-il | 50,000 | 5 | 10.3 at α=8.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx84w175-il | 100,000 | 9 | 26.6 at α=14° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx84w175-il | 100,000 | 5 | 34.1 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx84w175-il | 200,000 | 9 | 68.4 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx84w175-il | 200,000 | 5 | 69.8 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx84w175-il | 500,000 | 9 | 108.6 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx84w175-il | 500,000 | 5 | 100.1 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx84w175-il | 1,000,000 | 9 | 135.1 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx84w175-il | 1,000,000 | 5 | 124 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx75vg166-il | 50,000 | 9 | 20.6 at α=11.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx75vg166-il | 50,000 | 5 | 17.2 at α=11.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx75vg166-il | 100,000 | 9 | 28.7 at α=10.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx75vg166-il | 100,000 | 5 | 25.7 at α=10.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx75vg166-il | 200,000 | 9 | 43.1 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx75vg166-il | 200,000 | 5 | 45 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx75vg166-il | 500,000 | 9 | 82.4 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx75vg166-il | 500,000 | 5 | 84 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx75vg166-il | 1,000,000 | 9 | 107.8 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx75vg166-il | 1,000,000 | 5 | 103.3 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 50,000 | 9 | 8.1 at α=-1.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 50,000 | 5 | 18 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 100,000 | 9 | 19 at α=2° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 100,000 | 5 | 37.5 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 200,000 | 9 | 71.9 at α=10.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 200,000 | 5 | 73.6 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 500,000 | 9 | 115.5 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 500,000 | 5 | 114.3 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx77w121-il | 1,000,000 | 9 | 149.2 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx77w121-il | 1,000,000 | 5 | 145.3 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 50,000 | 9 | 15.1 at α=13.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 50,000 | 5 | 13.4 at α=12.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 100,000 | 9 | 23.2 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 100,000 | 5 | 24.5 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 200,000 | 9 | 65.3 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 200,000 | 5 | 43.8 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 500,000 | 9 | 81.6 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 500,000 | 5 | 81 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| fx78k161-il | 1,000,000 | 9 | 102.3 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| fx78k161-il | 1,000,000 | 5 | 98.9 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| Reynolds number calculator | |||||||