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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(rg15a111-il) RG 15A-1.8/11.0 AIRFOIL | Rolf Girsberger RG 15A-1.8/11.0 airfoil Max thickness 11% at 30.2% chord Max camber 1.8% at 39.7% chord | Remove Airfoil details Airfoil plotter |
(sc20614-il) NASA SC(2)-0614 AIRFOIL | NASA SC(2)-0614 airfoil (NASA TP-2969) Max thickness 14% at 36% chord Max camber 2.1% at 81% chord | Remove Airfoil details Airfoil plotter |
(sc20706-il) NASA SC(2)-0706 AIRFOIL | NASA SC(2)-0706 airfoil (NASA TP-2969) Max thickness 6% at 34% chord Max camber 1.6% at 82% chord | Remove Airfoil details Airfoil plotter |
(sd8000-il) SD8000-089-88 | Selig/Donovan SD8000 low Reynolds number airfoil Max thickness 8.9% at 29.4% chord Max camber 1.5% at 54% chord | Remove Airfoil details Airfoil plotter |
(s8025-il) S8025 (8%) | Selig S8025 low Reynolds number airfoil Max thickness 8% at 22.9% chord Max camber 0.4% at 18.8% chord | Remove Airfoil details Airfoil plotter |
(s9027-il) S9027 (8%) | Selig S9027 (8%) symmetrical vertical stab airfoil used on the Opus R/C sailplane Max thickness 8% at 22.9% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
(s827-nr) NREL's S827 Airfoil | NREL HAWT airfoil S827 primary 21.0% Dia=40 to 50 m Re=4.0E+6 Clmax(S)=1.00 Clmax(R)=0.99 Restrained max lift coef Max thickness 21% at 44.9% chord Max camber 2.2% at 68% chord | Remove Airfoil details Airfoil plotter |
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Polars for (rg15a111-il,sc20614-il,sc20706-il,sd8000-il,s8025-il,s9027-il,s827-nr)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| rg15a111-il | 50,000 | 9 | 32.3 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| rg15a111-il | 50,000 | 5 | 35.1 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| rg15a111-il | 100,000 | 9 | 50 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| rg15a111-il | 100,000 | 5 | 49.5 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| rg15a111-il | 200,000 | 9 | 66.8 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| rg15a111-il | 200,000 | 5 | 62.7 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| rg15a111-il | 500,000 | 9 | 87.9 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| rg15a111-il | 500,000 | 5 | 79.7 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| rg15a111-il | 1,000,000 | 9 | 101.9 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| rg15a111-il | 1,000,000 | 5 | 90 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20614-il | 50,000 | 9 | 26.4 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20614-il | 50,000 | 5 | 22.7 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20614-il | 100,000 | 9 | 28.8 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20614-il | 100,000 | 5 | 31.7 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20614-il | 200,000 | 9 | 38.9 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20614-il | 200,000 | 5 | 44.5 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20614-il | 500,000 | 9 | 62.7 at α=1° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20614-il | 500,000 | 5 | 64.3 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20614-il | 1,000,000 | 9 | 77.6 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20614-il | 1,000,000 | 5 | 80.1 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20706-il | 50,000 | 9 | 24 at α=2.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20706-il | 50,000 | 5 | 25.3 at α=2° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20706-il | 100,000 | 9 | 38.2 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20706-il | 100,000 | 5 | 33.3 at α=1.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20706-il | 200,000 | 9 | 40.6 at α=1.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20706-il | 200,000 | 5 | 44.1 at α=0.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20706-il | 500,000 | 9 | 67 at α=0.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20706-il | 500,000 | 5 | 55.8 at α=-0.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sc20706-il | 1,000,000 | 9 | 96.6 at α=-0.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sc20706-il | 1,000,000 | 5 | 68 at α=2.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd8000-il | 50,000 | 9 | 33.6 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd8000-il | 50,000 | 5 | 34.5 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd8000-il | 100,000 | 9 | 49.3 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd8000-il | 100,000 | 5 | 46.6 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd8000-il | 200,000 | 9 | 64.2 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd8000-il | 200,000 | 5 | 57.9 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd8000-il | 500,000 | 9 | 80.6 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd8000-il | 500,000 | 5 | 74.3 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| sd8000-il | 1,000,000 | 9 | 92.2 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| sd8000-il | 1,000,000 | 5 | 87.6 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s8025-il | 50,000 | 9 | 22.7 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s8025-il | 50,000 | 5 | 26.6 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s8025-il | 100,000 | 9 | 33.6 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s8025-il | 100,000 | 5 | 37.2 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s8025-il | 200,000 | 9 | 46.8 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s8025-il | 200,000 | 5 | 48.9 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s8025-il | 500,000 | 9 | 65.6 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s8025-il | 500,000 | 5 | 65.1 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s8025-il | 1,000,000 | 9 | 79.7 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s8025-il | 1,000,000 | 5 | 78 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9027-il | 50,000 | 9 | 22.6 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9027-il | 50,000 | 5 | 23.9 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9027-il | 100,000 | 9 | 30.6 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9027-il | 100,000 | 5 | 32.8 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9027-il | 200,000 | 9 | 40.7 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9027-il | 200,000 | 5 | 43.3 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9027-il | 500,000 | 9 | 57.9 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9027-il | 500,000 | 5 | 59.5 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s9027-il | 1,000,000 | 9 | 71.8 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s9027-il | 1,000,000 | 5 | 73.1 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s827-nr | 50,000 | 9 | 16.5 at α=12.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s827-nr | 50,000 | 5 | 14 at α=11.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s827-nr | 100,000 | 9 | 20.4 at α=10.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s827-nr | 100,000 | 5 | 21.3 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s827-nr | 200,000 | 9 | 35.6 at α=9.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s827-nr | 200,000 | 5 | 35 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s827-nr | 500,000 | 9 | 84.4 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s827-nr | 500,000 | 5 | 81.3 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s827-nr | 1,000,000 | 9 | 121.4 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s827-nr | 1,000,000 | 5 | 109.6 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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