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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(s825-nr) NREL's S825 Airfoil | NREL HAWT airfoil S825 primary 17.0% Dia=20 to 40 m Re=2.0E+6 Clmax(S)=1.44 Clmax(R)=1.37 High max lift coef Max thickness 17.1% at 29.9% chord Max camber 3.9% at 65.3% chord | Remove Airfoil details Airfoil plotter |
(tempest1-il) HAWKER TEMPEST 37.5% SEMISPAN AIRFOIL | Hawker Tempest 37.5% semispan airfoil (NPL?) Max thickness 14.5% at 38.3% chord Max camber 1% at 40.4% chord | Remove Airfoil details Airfoil plotter |
(defcnd2-il) DEFIANT CANARD BL110 AIRFOIL | Rutan DEFIANT canard BL110 airfoil Max thickness 14.7% at 28.6% chord Max camber 3.8% at 28.6% chord | Remove Airfoil details Airfoil plotter |
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Polars for (s825-nr,tempest1-il,defcnd2-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s825-nr | 50,000 | 9 | 29.3 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s825-nr | 50,000 | 5 | 32.2 at α=8.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s825-nr | 100,000 | 9 | 50.3 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s825-nr | 100,000 | 5 | 52.8 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s825-nr | 200,000 | 9 | 70.1 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s825-nr | 200,000 | 5 | 70.5 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s825-nr | 500,000 | 9 | 97.4 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s825-nr | 500,000 | 5 | 94 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s825-nr | 1,000,000 | 9 | 118.9 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s825-nr | 1,000,000 | 5 | 111 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| tempest1-il | 50,000 | 9 | 30.9 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| tempest1-il | 50,000 | 5 | 30.2 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| tempest1-il | 100,000 | 9 | 49.8 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| tempest1-il | 100,000 | 5 | 47.7 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| tempest1-il | 200,000 | 9 | 67 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| tempest1-il | 200,000 | 5 | 53.7 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| tempest1-il | 500,000 | 9 | 71.5 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| tempest1-il | 500,000 | 5 | 62.2 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| tempest1-il | 1,000,000 | 9 | 81.5 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| tempest1-il | 1,000,000 | 5 | 68.6 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| defcnd2-il | 50,000 | 9 | 8.4 at α=0.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| defcnd2-il | 50,000 | 5 | 28.3 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| defcnd2-il | 100,000 | 9 | 41.7 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| defcnd2-il | 100,000 | 5 | 47.9 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| defcnd2-il | 200,000 | 9 | 64.5 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| defcnd2-il | 200,000 | 5 | 64.5 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| defcnd2-il | 500,000 | 9 | 89.6 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| defcnd2-il | 500,000 | 5 | 89.6 at α=8.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| defcnd2-il | 1,000,000 | 9 | 117.2 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| defcnd2-il | 1,000,000 | 5 | 115 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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