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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(e49-il) EPPLER 49 AIRFOIL | Eppler E49 low Reynolds number airfoil Max thickness 7.2% at 38.4% chord Max camber 6.5% at 62.2% chord | Remove Airfoil details Airfoil plotter |
(e421-il) EPPLER 421 AIRFOIL | Eppler E421 high lift airfoil Max thickness 14.5% at 26% chord Max camber 8.6% at 37.4% chord | Remove Airfoil details Airfoil plotter |
(e417-il) EPPLER 417 AIRFOIL | Eppler E417 general purpose airfoil Max thickness 14.2% at 38.3% chord Max camber 3.1% at 76.3% chord | Remove Airfoil details Airfoil plotter |
(e205-il) E205 (10.48%) | Eppler E205 low Reynolds number airfoil Max thickness 10.5% at 29.7% chord Max camber 2.5% at 38.7% chord | Remove Airfoil details Airfoil plotter |
(e639-il) EPPLER 639 AIRFOIL | Eppler E639 airfoil Max thickness 12.6% at 29.2% chord Max camber 4.8% at 29.2% chord | Remove Airfoil details Airfoil plotter |
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Polars for (e49-il,e421-il,e417-il,e205-il,e639-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e49-il | 50,000 | 9 | 37.5 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 50,000 | 5 | 34.3 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e49-il | 100,000 | 9 | 56.6 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 100,000 | 5 | 50.9 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e49-il | 200,000 | 9 | 82.3 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 200,000 | 5 | 65 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e49-il | 500,000 | 9 | 119.1 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 1,000,000 | 9 | 155.5 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e49-il | 1,000,000 | 5 | 123.1 at α=0.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e421-il | 50,000 | 9 | 5.3 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e421-il | 50,000 | 5 | 20 at α=0.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e421-il | 100,000 | 9 | 27.7 at α=1° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e421-il | 100,000 | 5 | 48 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e421-il | 200,000 | 9 | 63 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e421-il | 200,000 | 5 | 74.8 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e421-il | 500,000 | 9 | 107.4 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e421-il | 500,000 | 5 | 109.9 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e421-il | 1,000,000 | 9 | 141.1 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e421-il | 1,000,000 | 5 | 141.3 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e417-il | 50,000 | 9 | 33.2 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e417-il | 50,000 | 5 | 30.2 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e417-il | 100,000 | 9 | 46.8 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e417-il | 100,000 | 5 | 46 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e417-il | 200,000 | 9 | 65.6 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e417-il | 200,000 | 5 | 66.1 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e417-il | 500,000 | 9 | 103.1 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e417-il | 500,000 | 5 | 94.4 at α=2.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e417-il | 1,000,000 | 9 | 135.9 at α=2.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e417-il | 1,000,000 | 5 | 112.5 at α=1° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e205-il | 50,000 | 9 | 32.6 at α=9.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e205-il | 50,000 | 5 | 34.5 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e205-il | 100,000 | 9 | 53.9 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e205-il | 100,000 | 5 | 54.9 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e205-il | 200,000 | 9 | 75.6 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e205-il | 200,000 | 5 | 74 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e205-il | 500,000 | 9 | 105.4 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e205-il | 500,000 | 5 | 98.9 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e205-il | 1,000,000 | 9 | 128.3 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e205-il | 1,000,000 | 5 | 116.5 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e639-il | 50,000 | 9 | 13.3 at α=0.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e639-il | 50,000 | 5 | 25.5 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e639-il | 100,000 | 9 | 32.8 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e639-il | 100,000 | 5 | 46 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e639-il | 200,000 | 9 | 62.7 at α=11.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e639-il | 200,000 | 5 | 69.3 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e639-il | 500,000 | 9 | 100.5 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e639-il | 500,000 | 5 | 102.3 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e639-il | 1,000,000 | 9 | 131.9 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e639-il | 1,000,000 | 5 | 129.1 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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