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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(b707e-il) BOEING 707 .99 SPAN AIRFOIL | Boeing Commercial Airplane Company model 707 airfoils Max thickness 9% at 42% chord Max camber 1.8% at 34% chord | Remove Airfoil details Airfoil plotter |
(e1230-il) EPPLER 1230 AIRFOIL | Eppler E1230 general aviation airfoil (Long-EZ and Defiant wing airfoil) Max thickness 17.4% at 30.9% chord Max camber 3.6% at 25.6% chord | Remove Airfoil details Airfoil plotter |
(m26-il) NACA M26 AIRFOIL | NACA/Munk M-26 airfoil Max thickness 8.3% at 40% chord Max camber 8.3% at 30% chord | Remove Airfoil details Airfoil plotter |
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Polars for (b707e-il,e1230-il,m26-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| b707e-il | 50,000 | 9 | 37 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b707e-il | 50,000 | 5 | 35.7 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b707e-il | 100,000 | 9 | 53.9 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b707e-il | 100,000 | 5 | 48.5 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b707e-il | 200,000 | 9 | 67.7 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b707e-il | 200,000 | 5 | 53.6 at α=2.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b707e-il | 500,000 | 9 | 65.5 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b707e-il | 500,000 | 5 | 64.1 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b707e-il | 1,000,000 | 9 | 77.7 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b707e-il | 1,000,000 | 5 | 75.8 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e1230-il | 50,000 | 9 | 16.7 at α=0.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e1230-il | 50,000 | 5 | 24.9 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e1230-il | 100,000 | 9 | 35.8 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e1230-il | 100,000 | 5 | 43.3 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e1230-il | 200,000 | 9 | 56.7 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e1230-il | 200,000 | 5 | 60.9 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e1230-il | 500,000 | 9 | 85.6 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e1230-il | 500,000 | 5 | 86.5 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e1230-il | 1,000,000 | 9 | 111.2 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e1230-il | 1,000,000 | 5 | 104.9 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| m26-il | 50,000 | 9 | 6.1 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| m26-il | 50,000 | 5 | 14 at α=3.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| m26-il | 100,000 | 9 | 16.6 at α=12° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| m26-il | 100,000 | 5 | 41.4 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| m26-il | 200,000 | 9 | 78.7 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| m26-il | 200,000 | 5 | 78.3 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| m26-il | 500,000 | 9 | 115.7 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| m26-il | 500,000 | 5 | 98.7 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| m26-il | 1,000,000 | 9 | 141.1 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| m26-il | 1,000,000 | 5 | 113.7 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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