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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(cap21c-il) CAP 21 (TraCFoil) | CAP 21 (TraCFoil) airfoil Max thickness 15.6% at 15.7% chord Max camber 0.6% at 23.9% chord | Remove Airfoil details Airfoil plotter |
(e836-il) EPPLER E836 HYDROFOIL AIRFOIL | Eppler E836 hydrofoil Max thickness 12.6% at 42.8% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
(ht12-il) HT12 | Drela HT12 airfoil Max thickness 5% at 18.6% chord Max camber 0% at 0% chord | Remove Airfoil details Airfoil plotter |
(goe367-il) GOE 367 AIRFOIL | Gottingen 367 airfoil Max thickness 16.3% at 29.7% chord Max camber 4.6% at 39.7% chord | Remove Airfoil details Airfoil plotter |
(c5a-il) LOCKHEED C-5A BL0 AIRFOIL | Lockheed-Georgia C-5A transonic wing airfoils Max thickness 13.1% at 40% chord Max camber 0.7% at 85% chord | Remove Airfoil details Airfoil plotter |
(e184-il) E184 (8.33%) | Eppler E184 low Reynolds number airfoil Max thickness 8.3% at 33.3% chord Max camber 0.8% at 38.3% chord | Remove Airfoil details Airfoil plotter |
(dae21-il) DAE-21 AIRFOIL | Drela DAE21 low Reynolds number airfoil Max thickness 11.8% at 32% chord Max camber 6.6% at 43.7% chord | Remove Airfoil details Airfoil plotter |
(b737d-il) BOEING 737 OUTBOARD AIRFOIL | Boeing Commercial Airplane Company model 737 airfoils Max thickness 10.8% at 40% chord Max camber 1.6% at 20% chord | Remove Airfoil details Airfoil plotter |
(e330-il) EPPLER 330 AIRFOIL | Eppler E330 flying wing airfoil Max thickness 11% at 29.2% chord Max camber 2.1% at 16.9% chord | Remove Airfoil details Airfoil plotter |
(e407-il) EPPLER 407 AIRFOIL | Eppler E407 sailplane airfoil Max thickness 14.4% at 36.6% chord Max camber 3.5% at 71.7% chord | Remove Airfoil details Airfoil plotter |
(k2-il) GRUMMAN K-2 AIRFOIL | Grumman K-2 transonic airfoil (GAC .80-.53-10.3) Max thickness 10.3% at 38.9% chord Max camber 1.3% at 88.3% chord | Remove Airfoil details Airfoil plotter |
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Polars for (cap21c-il,e836-il,ht12-il,goe367-il,c5a-il,e184-il,dae21-il,b737d-il,e330-il,e407-il,k2-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| cap21c-il | 50,000 | 9 | 9.9 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cap21c-il | 50,000 | 5 | 14.6 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| cap21c-il | 100,000 | 9 | 17.1 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cap21c-il | 100,000 | 5 | 26 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| cap21c-il | 200,000 | 9 | 38.4 at α=10° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cap21c-il | 200,000 | 5 | 48.1 at α=11.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| cap21c-il | 500,000 | 9 | 74 at α=10° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cap21c-il | 500,000 | 5 | 77.6 at α=10.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| cap21c-il | 1,000,000 | 9 | 97.4 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| cap21c-il | 1,000,000 | 5 | 97.4 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e836-il | 50,000 | 9 | 28.7 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e836-il | 50,000 | 5 | 28.6 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e836-il | 100,000 | 9 | 43.1 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e836-il | 100,000 | 5 | 34.5 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e836-il | 200,000 | 9 | 45.6 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e836-il | 200,000 | 5 | 42.4 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e836-il | 500,000 | 9 | 60 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e836-il | 500,000 | 5 | 49.9 at α=3.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e836-il | 1,000,000 | 9 | 67.1 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e836-il | 1,000,000 | 5 | 59.1 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ht12-il | 50,000 | 9 | 21.2 at α=2.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ht12-il | 50,000 | 5 | 20.3 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ht12-il | 100,000 | 9 | 26.8 at α=2.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ht12-il | 100,000 | 5 | 26.8 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ht12-il | 200,000 | 9 | 32.3 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ht12-il | 200,000 | 5 | 35.1 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ht12-il | 500,000 | 9 | 45.2 at α=4.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ht12-il | 500,000 | 5 | 50.2 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ht12-il | 1,000,000 | 9 | 58.3 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ht12-il | 1,000,000 | 5 | 64.7 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe367-il | 50,000 | 9 | 5.3 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe367-il | 50,000 | 5 | 20.8 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe367-il | 100,000 | 9 | 41.2 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe367-il | 100,000 | 5 | 47.7 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe367-il | 200,000 | 9 | 68 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe367-il | 200,000 | 5 | 64.8 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe367-il | 500,000 | 9 | 93.2 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe367-il | 500,000 | 5 | 83.7 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| goe367-il | 1,000,000 | 9 | 111.3 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| goe367-il | 1,000,000 | 5 | 98.4 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5a-il | 50,000 | 9 | 27.2 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5a-il | 50,000 | 5 | 27.1 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5a-il | 100,000 | 9 | 41.5 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5a-il | 100,000 | 5 | 32.5 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5a-il | 200,000 | 9 | 44.9 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5a-il | 200,000 | 5 | 40.7 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5a-il | 500,000 | 9 | 56.8 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5a-il | 500,000 | 5 | 55.8 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| c5a-il | 1,000,000 | 9 | 68.9 at α=10.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| c5a-il | 1,000,000 | 5 | 72.3 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e184-il | 50,000 | 9 | 30.9 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e184-il | 50,000 | 5 | 31.7 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e184-il | 100,000 | 9 | 44.4 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e184-il | 100,000 | 5 | 43.2 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e184-il | 200,000 | 9 | 58 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e184-il | 200,000 | 5 | 53.5 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e184-il | 500,000 | 9 | 73.9 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e184-il | 500,000 | 5 | 63.9 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e184-il | 1,000,000 | 9 | 82.4 at α=3.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e184-il | 1,000,000 | 5 | 67 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| dae21-il | 50,000 | 9 | 7.1 at α=11.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| dae21-il | 50,000 | 5 | 17.1 at α=8.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| dae21-il | 100,000 | 9 | 45.9 at α=11° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| dae21-il | 100,000 | 5 | 50.1 at α=7.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| dae21-il | 200,000 | 9 | 86.3 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| dae21-il | 200,000 | 5 | 88.7 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| dae21-il | 500,000 | 9 | 136.5 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| dae21-il | 500,000 | 5 | 130.4 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| dae21-il | 1,000,000 | 9 | 173.5 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| dae21-il | 1,000,000 | 5 | 158.1 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b737d-il | 50,000 | 9 | 33.7 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b737d-il | 50,000 | 5 | 34.3 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b737d-il | 100,000 | 9 | 50.9 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b737d-il | 100,000 | 5 | 48.8 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b737d-il | 200,000 | 9 | 68.7 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b737d-il | 200,000 | 5 | 62.3 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b737d-il | 500,000 | 9 | 89.8 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b737d-il | 500,000 | 5 | 71.9 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| b737d-il | 1,000,000 | 9 | 95.3 at α=3.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| b737d-il | 1,000,000 | 5 | 80.7 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e330-il | 50,000 | 9 | 17.2 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e330-il | 50,000 | 5 | 26.9 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e330-il | 100,000 | 9 | 40.6 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e330-il | 100,000 | 5 | 44.9 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e330-il | 200,000 | 9 | 60.6 at α=9° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e330-il | 200,000 | 5 | 61.5 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e330-il | 500,000 | 9 | 85.1 at α=8.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e330-il | 500,000 | 5 | 71.9 at α=8.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e330-il | 1,000,000 | 9 | 89.6 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e330-il | 1,000,000 | 5 | 84.8 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e407-il | 50,000 | 9 | 34.2 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e407-il | 50,000 | 5 | 30.9 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e407-il | 100,000 | 9 | 50.6 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e407-il | 100,000 | 5 | 48.2 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e407-il | 200,000 | 9 | 72 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e407-il | 200,000 | 5 | 72 at α=4.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e407-il | 500,000 | 9 | 113 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e407-il | 500,000 | 5 | 104.1 at α=2.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e407-il | 1,000,000 | 9 | 144.3 at α=2.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e407-il | 1,000,000 | 5 | 121.5 at α=1.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k2-il | 50,000 | 9 | 21.7 at α=4.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k2-il | 50,000 | 5 | 21.1 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k2-il | 100,000 | 9 | 28.9 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k2-il | 100,000 | 5 | 25.8 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k2-il | 200,000 | 9 | 29 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k2-il | 200,000 | 5 | 35.1 at α=7° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k2-il | 500,000 | 9 | 44 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k2-il | 500,000 | 5 | 52.3 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| k2-il | 1,000,000 | 9 | 60.4 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| k2-il | 1,000,000 | 5 | 66.7 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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