Airfoil Comparison
Select airfoils from the airfoil database or add your own airfoils and compare the airfoil shape and lift/drag polars.
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(s4094-il) S4094 (root airfoil designed for and used on the E-flite UMX ASK-21 scale RC sailplane) | Selig airfoil for micro RC soaring. Used on the E-flite UMX ASK-21 scale RC sailplane. Max thickness 9.9% at 29.1% chord Max camber 1.8% at 33.6% chord | Remove Airfoil details Airfoil plotter |
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Polars for (s4094-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s4094-il | 50,000 | 9 | 29.1 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4094-il | 50,000 | 5 | 34.8 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4094-il | 100,000 | 9 | 44.9 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4094-il | 100,000 | 5 | 47.1 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4094-il | 200,000 | 9 | 59.3 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4094-il | 200,000 | 5 | 58.8 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4094-il | 500,000 | 9 | 76.5 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4094-il | 500,000 | 5 | 73.3 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4094-il | 1,000,000 | 9 | 87.8 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4094-il | 1,000,000 | 5 | 82.8 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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