EPPLER 431 AIRFOIL (e431-il)
EPPLER 431 AIRFOIL - Eppler E431 sailplane airfoil
| Details | Dat file | Parser | |
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(e431-il) EPPLER 431 AIRFOIL Eppler E431 sailplane airfoil Max thickness 15.1% at 37.4% chord. Max camber 4.2% at 42.6% chord Source UIUC Airfoil Coordinates Database Source dat file The dat file is in Lednicer format |
EPPLER 431 AIRFOIL
35. 38.
0.0000100 0.0002100
0.0001200 0.0018100
0.0006400 0.0043800
0.0023800 0.0090300
0.0090700 0.0192500
0.0199900 0.0302700
0.0350600 0.0416400
0.0541600 0.0530000
0.0771700 0.0640600
0.1039100 0.0745600
0.1341800 0.0842800
0.1677000 0.0930500
0.2042000 0.1007000
0.2433400 0.1070900
0.2847600 0.1121100
0.3280600 0.1156500
0.3728400 0.1176200
0.4186600 0.1179300
0.4651300 0.1164800
0.5119000 0.1132100
0.5586700 0.1081000
0.6051500 0.1012400
0.6511400 0.0927700
0.6964900 0.0830300
0.7408000 0.0726200
0.7834600 0.0620200
0.8238400 0.0515600
0.8613099 0.0415600
0.8952800 0.0322200
0.9251900 0.0237600
0.9504901 0.0162600
0.9708999 0.0096900
0.9863800 0.0043900
0.9964400 0.0010800
1.0000000 0.0000000
0.0000100 0.0002100
0.0000700 -.0012600
0.0001800 -.0019400
0.0003400 -.0025900
0.0005700 -.0031700
0.0009100 -.0037200
0.0013400 -.0042600
0.0018600 -.0048000
0.0031200 -.0058700
0.0046500 -.0069300
0.0074100 -.0085100
0.0131600 -.0110800
0.0289000 -.0158000
0.0501100 -.0198800
0.0765400 -.0233400
0.1079100 -.0261900
0.1438400 -.0285400
0.1838400 -.0304200
0.2274100 -.0318600
0.2740000 -.0328600
0.3230200 -.0334400
0.3738400 -.0335700
0.4258300 -.0332200
0.4783400 -.0323100
0.5307100 -.0307500
0.5822600 -.0282400
0.6328300 -.0243600
0.6825000 -.0192500
0.7311200 -.0133400
0.7785000 -.0072500
0.8240000 -.0019000
0.8665400 0.0020900
0.9050000 0.0044300
0.9382499 0.0050400
0.9651200 0.0040900
0.9845700 0.0023000
0.9961700 0.0006500
1.0000000 0.0000000
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Polars for EPPLER 431 AIRFOIL (e431-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e431-il | 50,000 | 9 | 22.1 at α=13.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e431-il | 50,000 | 5 | 19.8 at α=12° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e431-il | 100,000 | 9 | 48.3 at α=9.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e431-il | 100,000 | 5 | 46.2 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e431-il | 200,000 | 9 | 79.8 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e431-il | 200,000 | 5 | 76.8 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e431-il | 500,000 | 9 | 116 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e431-il | 500,000 | 5 | 109.2 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e431-il | 1,000,000 | 9 | 144.4 at α=5.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e431-il | 1,000,000 | 5 | 130.2 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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