EPPLER 642 AIRFOIL (e642-il)
EPPLER 642 AIRFOIL - Eppler E642 sailplane airfoil
| Details | Dat file | Parser | |
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(e642-il) EPPLER 642 AIRFOIL Eppler E642 sailplane airfoil Max thickness 15.1% at 39.4% chord. Max camber 3% at 39.4% chord Source UIUC Airfoil Coordinates Database Source dat file The dat file is in Lednicer format |
EPPLER 642 AIRFOIL
32.0 30.0
0.0001200 0.0014700
0.0041400 0.0102700
0.0125900 0.0202500
0.0253600 0.0308000
0.0423100 0.0415600
0.0632600 0.0521800
0.0880700 0.0623300
0.1166000 0.0718000
0.1486000 0.0804100
0.1837700 0.0880300
0.2217800 0.0945100
0.2622700 0.0997200
0.3048300 0.1035500
0.3490400 0.1058800
0.3944700 0.1066000
0.4407300 0.1056100
0.4873500 0.1028500
0.5338600 0.0980700
0.5802700 0.0908200
0.6271700 0.0814300
0.6744500 0.0710300
0.7212900 0.0604800
0.7668300 0.0502500
0.8101900 0.0407100
0.8505500 0.0320600
0.8871200 0.0244100
0.9191700 0.0177000
0.9463000 0.0117000
0.9684900 0.0065100
0.9854100 0.0026800
0.9962400 0.0005900
1.0000000 0.0000000
0.0001200 0.0014700
0.0017600 -.0053600
0.0098000 -.0110200
0.0236600 -.0164900
0.0429200 -.0215200
0.0673400 -.0260200
0.0966900 -.0299800
0.1306400 -.0334600
0.1687400 -.0364800
0.2105300 -.0390200
0.2555100 -.0410800
0.3031300 -.0426500
0.3528500 -.0437000
0.4040800 -.0442500
0.4562200 -.0442600
0.5086500 -.0437400
0.5607800 -.0426600
0.6119500 -.0410300
0.6615200 -.0387700
0.7088500 -.0357600
0.7533100 -.0315400
0.7952200 -.0253900
0.8356200 -.0179800
0.8742400 -.0110800
0.9097000 -.0056800
0.9407000 -.0020700
0.9660400 -.0002000
0.9847500 0.0003400
0.9961700 0.0001700
1.0000000 0.0000000
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Polars for EPPLER 642 AIRFOIL (e642-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e642-il | 50,000 | 9 | 21.9 at α=12.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e642-il | 50,000 | 5 | 19.2 at α=12.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e642-il | 100,000 | 9 | 43.7 at α=10.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e642-il | 100,000 | 5 | 43 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e642-il | 200,000 | 9 | 77.1 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e642-il | 200,000 | 5 | 65.4 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e642-il | 500,000 | 9 | 98.2 at α=7.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e642-il | 500,000 | 5 | 92.6 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e642-il | 1,000,000 | 9 | 121.4 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e642-il | 1,000,000 | 5 | 109.7 at α=5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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