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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(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 |
(cr1-il) CURTISS CR-1 AIRFOIL | Curtiss CR-1 general aviation airfoil Max thickness 12.2% at 24% chord Max camber 4.7% at 42% chord | Remove Airfoil details Airfoil plotter |
(clarkk-il) CLARK K AIRFOIL | CLARK K airfoil Max thickness 11.7% at 29.7% chord Max camber 3.3% at 39.6% chord | Remove Airfoil details Airfoil plotter |
(ag17-il) AG17 | Drela AG17 airfoil Max thickness 6.5% at 22.1% chord Max camber 2% at 45.5% chord | Remove Airfoil details Airfoil plotter |
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Polars for (ah21-7-il,cr1-il,clarkk-il,ag17-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| 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 | |
| cr1-il | 50,000 | 9 | 22.7 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cr1-il | 50,000 | 5 | 32.4 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| cr1-il | 100,000 | 9 | 54.7 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cr1-il | 100,000 | 5 | 53 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| cr1-il | 200,000 | 9 | 79.1 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cr1-il | 200,000 | 5 | 72.9 at α=3.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| cr1-il | 500,000 | 9 | 109.5 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cr1-il | 500,000 | 5 | 89.8 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| cr1-il | 1,000,000 | 9 | 120.9 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cr1-il | 1,000,000 | 5 | 104.3 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| clarkk-il | 50,000 | 9 | 32.2 at α=10° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| clarkk-il | 50,000 | 5 | 36.4 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| clarkk-il | 100,000 | 9 | 54.1 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| clarkk-il | 100,000 | 5 | 54.7 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| clarkk-il | 200,000 | 9 | 75.7 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| clarkk-il | 200,000 | 5 | 71.5 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| clarkk-il | 500,000 | 9 | 102.7 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| clarkk-il | 500,000 | 5 | 91.3 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| clarkk-il | 1,000,000 | 9 | 121.4 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| clarkk-il | 1,000,000 | 5 | 104.4 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag17-il | 50,000 | 9 | 34.6 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag17-il | 50,000 | 5 | 36.3 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag17-il | 100,000 | 9 | 49.5 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag17-il | 100,000 | 5 | 48.4 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag17-il | 200,000 | 9 | 64.1 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag17-il | 200,000 | 5 | 60.4 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag17-il | 500,000 | 9 | 82.1 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag17-il | 500,000 | 5 | 76.7 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ag17-il | 1,000,000 | 9 | 95.4 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ag17-il | 1,000,000 | 5 | 89.2 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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