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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(r140-il) R140 (original) | R140 Quickee 500 airfoil (original) Max thickness 12% at 39.3% chord Max camber 0.5% at 42.3% chord | Remove Airfoil details Airfoil plotter |
(giiic-il) GIII BL75 AIRFOIL | Grumman/Gulfstream GIII transonic airfoils Max thickness 9.9% at 39.8% chord Max camber 0.9% at 29.8% chord | Remove Airfoil details Airfoil plotter |
(e435-il) EPPLER 435 AIRFOIL | Eppler E435 sailplane airfoil Max thickness 16.2% at 40.9% chord Max camber 4.4% at 56.2% chord | Remove Airfoil details Airfoil plotter |
(giiia-il) GIII BL0 AIRFOIL | Grumman/Gulfstream GIII transonic airfoils Max thickness 11% at 39.7% chord Max camber 0.7% at 14.7% chord | Remove Airfoil details Airfoil plotter |
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Polars for (r140-il,giiic-il,e435-il,giiia-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| r140-il | 50,000 | 9 | 27.1 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| r140-il | 50,000 | 5 | 28.7 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| r140-il | 100,000 | 9 | 43.2 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| r140-il | 100,000 | 5 | 36.1 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| r140-il | 200,000 | 9 | 48.6 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| r140-il | 200,000 | 5 | 33.4 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| r140-il | 500,000 | 9 | 47.1 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| r140-il | 500,000 | 5 | 37.5 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| r140-il | 1,000,000 | 9 | 50.8 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| r140-il | 1,000,000 | 5 | 71.7 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiic-il | 50,000 | 9 | 30.2 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiic-il | 50,000 | 5 | 31 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiic-il | 100,000 | 9 | 44.5 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiic-il | 100,000 | 5 | 42.4 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiic-il | 200,000 | 9 | 58.1 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiic-il | 200,000 | 5 | 51.5 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiic-il | 500,000 | 9 | 68.3 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiic-il | 500,000 | 5 | 60.7 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiic-il | 1,000,000 | 9 | 75.2 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiic-il | 1,000,000 | 5 | 71 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 50,000 | 9 | 7.6 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 50,000 | 5 | 19.4 at α=11.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 100,000 | 9 | 48 at α=10.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 100,000 | 5 | 44.8 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 200,000 | 9 | 79.3 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 200,000 | 5 | 78.3 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 500,000 | 9 | 119.5 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 500,000 | 5 | 111.8 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e435-il | 1,000,000 | 9 | 148.7 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e435-il | 1,000,000 | 5 | 133 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiia-il | 50,000 | 9 | 26.4 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiia-il | 50,000 | 5 | 27.8 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiia-il | 100,000 | 9 | 38.6 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiia-il | 100,000 | 5 | 38.9 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiia-il | 200,000 | 9 | 49.7 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiia-il | 200,000 | 5 | 51.1 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiia-il | 500,000 | 9 | 69.1 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiia-il | 500,000 | 5 | 62.8 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| giiia-il | 1,000,000 | 9 | 77.2 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| giiia-il | 1,000,000 | 5 | 72 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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