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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(gm15sm-il) GM15 (smoothed) | Gilbert Morris GM15 F1C class free flight flapper airfoil Max thickness 6.7% at 20.5% chord Max camber 4.8% at 49.3% chord | Remove Airfoil details Airfoil plotter |
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Polars for (gm15sm-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| gm15sm-il | 50,000 | 9 | 45.2 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| gm15sm-il | 50,000 | 5 | 46.1 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| gm15sm-il | 100,000 | 9 | 66.2 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| gm15sm-il | 100,000 | 5 | 66.9 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| gm15sm-il | 200,000 | 9 | 91.5 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| gm15sm-il | 200,000 | 5 | 86.9 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| gm15sm-il | 500,000 | 9 | 123.6 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| gm15sm-il | 500,000 | 5 | 112.4 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| gm15sm-il | 1,000,000 | 9 | 146.5 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| gm15sm-il | 1,000,000 | 5 | 119.5 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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