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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(ah81131-il) AH 81-131 | Althaus AH 81-131 airfoil Max thickness 13.1% at 40.2% chord Max camber 2.8% at 40.2% chord | Remove Airfoil details Airfoil plotter |
(ah79k143-il) AH 79-K-143/18 | Althaus AH 79-K-143/18 airfoil for use with flaps (K) Max thickness 14.3% at 40.2% chord Max camber 2.9% at 40.2% chord | Remove Airfoil details Airfoil plotter |
(ah80140-il) AH 80-140 | Althaus AH 80-140 airfoil Max thickness 14% at 30.9% chord Max camber 4.4% at 33.9% chord | Remove Airfoil details Airfoil plotter |
(ah21-7-il) AH21 7% version (Andrew Hollom) | Andrew Hollom AH 21 airfoil (7% version) Max thickness 9% at 34.9% chord Max camber 2.3% at 54.8% chord | Remove Airfoil details Airfoil plotter |
(ag45c03-il) AG45c -03f | Drela AG45c -03f airfoil Max thickness 6.9% at 23.5% chord Max camber 2% at 31.7% chord | Remove Airfoil details Airfoil plotter |
(august160-il) AUGUST 160 | AUGUST 160 airfoil Max thickness 16% at 25% chord Max camber 5.4% at 25% chord | Remove Airfoil details Airfoil plotter |
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Polars for (ah81131-il,ah79k143-il,ah80140-il,ah21-7-il,ag45c03-il,august160-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| ah81131-il | 50,000 | 9 | 23.4 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 50,000 | 5 | 21.5 at α=9.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 100,000 | 9 | 37.5 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 100,000 | 5 | 38.1 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 200,000 | 9 | 72.2 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 200,000 | 5 | 70.6 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 500,000 | 9 | 110 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 500,000 | 5 | 95.8 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81131-il | 1,000,000 | 9 | 126.8 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81131-il | 1,000,000 | 5 | 104.8 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k143-il | 50,000 | 9 | 20.5 at α=10.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k143-il | 50,000 | 5 | 19.8 at α=10.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k143-il | 100,000 | 9 | 39 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k143-il | 100,000 | 5 | 37.8 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k143-il | 200,000 | 9 | 76.2 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k143-il | 200,000 | 5 | 62.4 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k143-il | 500,000 | 9 | 90.9 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k143-il | 500,000 | 5 | 86.7 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah79k143-il | 1,000,000 | 9 | 110.9 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah79k143-il | 1,000,000 | 5 | 107.1 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah80140-il | 50,000 | 9 | 5.3 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah80140-il | 50,000 | 5 | 14.3 at α=2° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah80140-il | 100,000 | 9 | 22.5 at α=14° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah80140-il | 100,000 | 5 | 35.7 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah80140-il | 200,000 | 9 | 70.9 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah80140-il | 200,000 | 5 | 74.2 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah80140-il | 500,000 | 9 | 116.4 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah80140-il | 500,000 | 5 | 113.2 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah80140-il | 1,000,000 | 9 | 149.2 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah80140-il | 1,000,000 | 5 | 139 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah21-7-il | 50,000 | 9 | 35.6 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah21-7-il | 50,000 | 5 | 35.6 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah21-7-il | 100,000 | 9 | 55.4 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah21-7-il | 100,000 | 5 | 51.6 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah21-7-il | 200,000 | 9 | 78.1 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah21-7-il | 200,000 | 5 | 69.8 at α=3° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah21-7-il | 500,000 | 9 | 111.5 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah21-7-il | 500,000 | 5 | 82.9 at α=1.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah21-7-il | 1,000,000 | 9 | 119.7 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah21-7-il | 1,000,000 | 5 | 84.7 at α=0.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag45c03-il | 50,000 | 9 | 29.7 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag45c03-il | 50,000 | 5 | 34.9 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag45c03-il | 100,000 | 9 | 46 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag45c03-il | 100,000 | 5 | 47.9 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag45c03-il | 200,000 | 9 | 62.4 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag45c03-il | 200,000 | 5 | 61 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag45c03-il | 500,000 | 9 | 83 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag45c03-il | 500,000 | 5 | 78.1 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag45c03-il | 1,000,000 | 9 | 97.4 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag45c03-il | 1,000,000 | 5 | 91.2 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| august160-il | 50,000 | 9 | 4.7 at α=-0.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| august160-il | 50,000 | 5 | 17.3 at α=2.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| august160-il | 100,000 | 9 | 20.8 at α=0° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| august160-il | 100,000 | 5 | 34.7 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| august160-il | 200,000 | 9 | 42.5 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| august160-il | 200,000 | 5 | 56.1 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| august160-il | 500,000 | 9 | 82.1 at α=10° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| august160-il | 500,000 | 5 | 90.3 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| august160-il | 1,000,000 | 9 | 117.2 at α=11° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| august160-il | 1,000,000 | 5 | 120.2 at α=9.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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