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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(arad13-il) ARA-D 13% AIRFOIL | Aeronautical Research Association/Bocci-Dowty Rotol ARA-D 13% thick propeller airfoil Max thickness 13% at 25% chord Max camber 3.6% at 30% chord | Remove Airfoil details Airfoil plotter |
(usnps4-il) USNPS4 (smoothed) | Jacobs USNPS4 (smoothed) 17.5 kW wind turbine airfoil Max thickness 11.9% at 34.2% chord Max camber 5% at 34.2% chord | Remove Airfoil details Airfoil plotter |
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Polars for (arad13-il,usnps4-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| arad13-il | 50,000 | 9 | 25.7 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| arad13-il | 50,000 | 5 | 31.8 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| arad13-il | 100,000 | 9 | 41.8 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| arad13-il | 100,000 | 5 | 44.5 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| arad13-il | 200,000 | 9 | 56.1 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| arad13-il | 200,000 | 5 | 58.4 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| arad13-il | 500,000 | 9 | 78.6 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| arad13-il | 500,000 | 5 | 79.4 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| arad13-il | 1,000,000 | 9 | 97.9 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| arad13-il | 1,000,000 | 5 | 96.4 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| usnps4-il | 50,000 | 9 | 32.7 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| usnps4-il | 50,000 | 5 | 37.1 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| usnps4-il | 100,000 | 9 | 55.5 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| usnps4-il | 100,000 | 5 | 53.2 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| usnps4-il | 200,000 | 9 | 74.3 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| usnps4-il | 200,000 | 5 | 67.2 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| usnps4-il | 500,000 | 9 | 95.2 at α=1° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| usnps4-il | 500,000 | 5 | 87.2 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| usnps4-il | 1,000,000 | 9 | 110.8 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| usnps4-il | 1,000,000 | 5 | 105.3 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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