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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(s9032-il) S9032 (9%) | Selig S9032 (9%) symmetrical horizontal stab airfoil used on the Blackhawk R/C sailplane Max thickness 9% at 25% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
(s6062-il) S6062 8% | Selig S6062 low Reynolds number airfoil Max thickness 7.9% at 29.4% chord Max camber 1.4% at 43.7% chord | Remove Airfoil details Airfoil plotter |
(s831-nr) NREL's S831 Airfoil | NREL HAWT airfoil S831 tip 18.0% Dia=40 to 50 m Re=3.5E+6 Clmax(S)=1.50 Clmax(R)=1.48 High max lift coef Max thickness 18% at 44.2% chord Max camber 5% at 53.1% chord | Remove Airfoil details Airfoil plotter |
(s4180-il) S4180-098-84 | Selig S4180 low Reynolds number airfoil Max thickness 9.8% at 26.1% chord Max camber 4% at 39.4% chord | Remove Airfoil details Airfoil plotter |
(s9026-il) S9026 (9.5%) | Selig S9026 (9.5%) symmetrical horizontal stab airfoil used on the Opus R/C sailplane Max thickness 9.5% at 27.3% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
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Polars for (s9032-il,s6062-il,s831-nr,s4180-il,s9026-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s9032-il | 50,000 | 9 | 23.5 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9032-il | 50,000 | 5 | 25 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9032-il | 100,000 | 9 | 32.7 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9032-il | 100,000 | 5 | 34.2 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9032-il | 200,000 | 9 | 43.2 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9032-il | 200,000 | 5 | 44.9 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9032-il | 500,000 | 9 | 60.2 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9032-il | 500,000 | 5 | 61 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9032-il | 1,000,000 | 9 | 74.2 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9032-il | 1,000,000 | 5 | 74.1 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s6062-il | 50,000 | 9 | 34.6 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s6062-il | 50,000 | 5 | 35.6 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s6062-il | 100,000 | 9 | 50.4 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s6062-il | 100,000 | 5 | 48.4 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s6062-il | 200,000 | 9 | 65.2 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s6062-il | 200,000 | 5 | 58.8 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s6062-il | 500,000 | 9 | 82 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s6062-il | 500,000 | 5 | 68.4 at α=2.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s6062-il | 1,000,000 | 9 | 91 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s6062-il | 1,000,000 | 5 | 73.2 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s831-nr | 50,000 | 9 | 17.2 at α=13.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s831-nr | 50,000 | 5 | 14.2 at α=13.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s831-nr | 100,000 | 9 | 21.8 at α=13° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s831-nr | 100,000 | 5 | 21.2 at α=12.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s831-nr | 200,000 | 9 | 36.7 at α=11.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s831-nr | 200,000 | 5 | 47 at α=3.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s831-nr | 500,000 | 9 | 113.9 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s831-nr | 500,000 | 5 | 112.6 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s831-nr | 1,000,000 | 9 | 152.7 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s831-nr | 1,000,000 | 5 | 147.5 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4180-il | 50,000 | 9 | 28.3 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4180-il | 50,000 | 5 | 37.7 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4180-il | 100,000 | 9 | 55.1 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4180-il | 100,000 | 5 | 58.8 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4180-il | 200,000 | 9 | 78.7 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4180-il | 200,000 | 5 | 78.7 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4180-il | 500,000 | 9 | 110.5 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4180-il | 500,000 | 5 | 104.4 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s4180-il | 1,000,000 | 9 | 133.9 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s4180-il | 1,000,000 | 5 | 122.6 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9026-il | 50,000 | 9 | 24.2 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9026-il | 50,000 | 5 | 25.4 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9026-il | 100,000 | 9 | 33.8 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9026-il | 100,000 | 5 | 34.6 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9026-il | 200,000 | 9 | 44.3 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9026-il | 200,000 | 5 | 45.3 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9026-il | 500,000 | 9 | 60.9 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9026-il | 500,000 | 5 | 61.5 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9026-il | 1,000,000 | 9 | 75.1 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9026-il | 1,000,000 | 5 | 74.6 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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