EPPLER 668 AIRFOIL (e668-il)
EPPLER 668 AIRFOIL - Eppler E668 sailplane airfoil
| Details | Dat file | Parser | |
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(e668-il) EPPLER 668 AIRFOIL Eppler E668 sailplane airfoil Max thickness 13.9% at 37.3% chord. Max camber 4% at 47.8% chord Source UIUC Airfoil Coordinates Database Source dat file The dat file is in Lednicer format |
EPPLER 668 AIRFOIL
36. 37.
0.0000100 0.0002400
0.0001000 0.0017000
0.0003800 0.0032500
0.0011500 0.0057300
0.0016800 0.0070200
0.0077900 0.0162800
0.0183000 0.0263200
0.0331000 0.0367100
0.0521000 0.0470900
0.0751400 0.0572100
0.1020700 0.0668500
0.1326300 0.0758100
0.1665900 0.0839200
0.2036300 0.0910500
0.2434200 0.0970700
0.2855900 0.1018900
0.3297200 0.1054300
0.3754200 0.1076500
0.4222100 0.1085000
0.4696300 0.1079600
0.5171900 0.1060300
0.5644100 0.1026700
0.6107700 0.0978500
0.6558800 0.0914100
0.6995100 0.0833600
0.7414000 0.0734700
0.7822900 0.0618300
0.8224199 0.0501100
0.8603500 0.0395900
0.8948200 0.0302800
0.9251300 0.0221600
0.9506199 0.0151300
0.9710500 0.0090200
0.9864800 0.0040700
0.9964700 0.0009900
1.0000000 0.0000000
0.0000100 0.0002400
0.0000300 -.0004400
0.0001200 -.0010900
0.0002900 -.0016900
0.0005400 -.0022600
0.0009000 -.0028400
0.0013300 -.0034200
0.0023800 -.0045800
0.0036900 -.0057400
0.0060800 -.0074700
0.0155700 -.0121900
0.0316700 -.0172800
0.0529200 -.0217200
0.0791100 -.0254200
0.1100000 -.0283500
0.1452800 -.0305400
0.1846000 -.0319900
0.2275300 -.0327600
0.2736100 -.0328900
0.3223100 -.0324300
0.3730700 -.0314500
0.4252900 -.0299800
0.4783500 -.0280700
0.5316100 -.0257200
0.5844300 -.0228800
0.6363100 -.0194900
0.6867100 -.0155900
0.7351700 -.0109600
0.7819100 -.0056200
0.8269100 -.0006300
0.8690799 0.0029800
0.9071200 0.0048800
0.9398100 0.0050900
0.9660500 0.0039600
0.9849800 0.0021600
0.9962700 0.0006100
1.0000000 0.0000000
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Polars for EPPLER 668 AIRFOIL (e668-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| e668-il | 50,000 | 9 | 31 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e668-il | 50,000 | 5 | 27 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e668-il | 100,000 | 9 | 51.6 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e668-il | 100,000 | 5 | 47.2 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e668-il | 200,000 | 9 | 81.1 at α=7.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e668-il | 200,000 | 5 | 77.2 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e668-il | 500,000 | 9 | 123 at α=5.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e668-il | 500,000 | 5 | 113.2 at α=3.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| e668-il | 1,000,000 | 9 | 155.5 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| e668-il | 1,000,000 | 5 | 135.8 at α=2.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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