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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(hq3012-il) HQ 3.0/12 AIRFOIL | Quabeck HQ 3.0/12 R/C sailplane airfoil Max thickness 12% at 35% chord Max camber 3% at 50% chord | Remove Airfoil details Airfoil plotter |
(isa571-il) I.S.A. 571 | I.S.A. 571 airfoil Max thickness 7.4% at 30% chord Max camber 3.6% at 30% chord | Remove Airfoil details Airfoil plotter |
(lnv109a-il) LNV109A | Douglas/Liebeck LNV109A high lift airfoil Max thickness 13% at 23.5% chord Max camber 6% at 31.5% chord | Remove Airfoil details Airfoil plotter |
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Polars for (hq3012-il,isa571-il,lnv109a-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| hq3012-il | 50,000 | 9 | 34.4 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq3012-il | 50,000 | 5 | 36.8 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hq3012-il | 100,000 | 9 | 57.4 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq3012-il | 100,000 | 5 | 56.5 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hq3012-il | 200,000 | 9 | 80.8 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq3012-il | 200,000 | 5 | 75.1 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hq3012-il | 500,000 | 9 | 109.4 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq3012-il | 500,000 | 5 | 88.3 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hq3012-il | 1,000,000 | 9 | 117.1 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq3012-il | 1,000,000 | 5 | 98.4 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| isa571-il | 50,000 | 9 | 35.4 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| isa571-il | 50,000 | 5 | 39.4 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| isa571-il | 100,000 | 9 | 51.6 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| isa571-il | 100,000 | 5 | 54.3 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| isa571-il | 200,000 | 9 | 69.6 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| isa571-il | 200,000 | 5 | 70.6 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| isa571-il | 500,000 | 9 | 93.6 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| isa571-il | 500,000 | 5 | 89.1 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| isa571-il | 1,000,000 | 9 | 109.4 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| isa571-il | 1,000,000 | 5 | 100.5 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| lnv109a-il | 50,000 | 9 | 5.5 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| lnv109a-il | 50,000 | 5 | 9.8 at α=2.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| lnv109a-il | 100,000 | 9 | 7 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| lnv109a-il | 100,000 | 5 | 23.3 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| lnv109a-il | 200,000 | 9 | 25.5 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| lnv109a-il | 200,000 | 5 | 58.3 at α=9.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| lnv109a-il | 500,000 | 9 | 111.2 at α=11.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| lnv109a-il | 500,000 | 5 | 113.7 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| lnv109a-il | 1,000,000 | 9 | 151.5 at α=10° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| lnv109a-il | 1,000,000 | 5 | 149.6 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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