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EPPLER 678 AIRFOIL (e678-il)

EPPLER 678 AIRFOIL - Eppler E678 sailplane airfoil


Airfoil e678-il
Details Dat file Parser  
(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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Lednicer format dat file
Selig format dat file

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Polars for EPPLER 678 AIRFOIL (e678-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   e678-il50,000922.4 at α=13.5°Mach=0 Ncrit=9Xfoil predictionDetails
   e678-il50,000520 at α=12.25°Mach=0 Ncrit=5Xfoil predictionDetails
   e678-il100,000941.5 at α=11°Mach=0 Ncrit=9Xfoil predictionDetails
   e678-il100,000545.7 at α=7.25°Mach=0 Ncrit=5Xfoil predictionDetails
   e678-il200,000979.3 at α=8°Mach=0 Ncrit=9Xfoil predictionDetails
   e678-il200,000578.1 at α=6.5°Mach=0 Ncrit=5Xfoil predictionDetails
   e678-il500,0009116.8 at α=6.5°Mach=0 Ncrit=9Xfoil predictionDetails
   e678-il500,0005109.6 at α=5.5°Mach=0 Ncrit=5Xfoil predictionDetails
   e678-il1,000,0009141.1 at α=5.75°Mach=0 Ncrit=9Xfoil predictionDetails
   e678-il1,000,0005130.7 at α=4.5°Mach=0 Ncrit=5Xfoil predictionDetails
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