EPPLER 678 AIRFOIL (e678-il)
EPPLER 678 AIRFOIL - Eppler E678 sailplane airfoil
| Details | Dat file | Parser | |
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(e678-il) EPPLER 678 AIRFOIL Eppler E678 sailplane airfoil Max thickness 15.1% at 39.8% chord. Max camber 5.1% at 53.7% chord Source UIUC Airfoil Coordinates Database Source dat file The dat file is in Lednicer format |
EPPLER 678 AIRFOIL
33.0 29.0
0.0003200 0.0026900
0.0048800 0.0120000
0.0137900 0.0226100
0.0269500 0.0339200
0.0442500 0.0455300
0.0655400 0.0571100
0.0906900 0.0683800
0.1195000 0.0791000
0.1517400 0.0890800
0.1871000 0.0981600
0.2252600 0.1061700
0.2658500 0.1129800
0.3084900 0.1184800
0.3527500 0.1225600
0.3981700 0.1251400
0.4442700 0.1261300
0.4904700 0.1252800
0.5365900 0.1221900
0.5828000 0.1168800
0.6290800 0.1098300
0.6752700 0.1017800
0.7203300 0.0939500
0.7621900 0.0861300
0.8004300 0.0766300
0.8363800 0.0652900
0.8703100 0.0534900
0.9014000 0.0421600
0.9288000 0.0315900
0.9520700 0.0217200
0.9713000 0.0127700
0.9864000 0.0056700
0.9964200 0.0013600
1.0000000 0.0000000
0.0003200 0.0026900
0.0011700 -.0043700
0.0082700 -.0099100
0.0212300 -.0149100
0.0397300 -.0191400
0.0635100 -.0226400
0.0922900 -.0253800
0.1257400 -.0273700
0.1635200 -.0286500
0.2051700 -.0292900
0.2501700 -.0293100
0.2979800 -.0286900
0.3481000 -.0274400
0.3999200 -.0256000
0.4528700 -.0231100
0.5064900 -.0200000
0.5601400 -.0164400
0.6130600 -.0123000
0.6649900 -.0072300
0.7161100 -.0014700
0.7661900 0.0041000
0.8144600 0.0085900
0.8597900 0.0112900
0.9007800 0.0119200
0.9361200 0.0105000
0.9644100 0.0074100
0.9844900 0.0037700
0.9961900 0.0010100
1.0000000 0.0000000
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Polars for EPPLER 678 AIRFOIL (e678-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e678-il | 50,000 | 9 | 22.4 at α=13.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e678-il | 50,000 | 5 | 20 at α=12.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e678-il | 100,000 | 9 | 41.5 at α=11° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e678-il | 100,000 | 5 | 45.7 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e678-il | 200,000 | 9 | 79.3 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e678-il | 200,000 | 5 | 78.1 at α=6.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e678-il | 500,000 | 9 | 116.8 at α=6.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e678-il | 500,000 | 5 | 109.6 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e678-il | 1,000,000 | 9 | 141.1 at α=5.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e678-il | 1,000,000 | 5 | 130.7 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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