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NASA-TM-78709
NASA low-and medium-speed airfoil development
Year: 1979
Abstract: The status of NASA low and medium speed airfoil research is discussed. Effects of airfoil thickness-chord ratios varying from 9 percent to 21 percent on the section characteristics for a design lift coefficient of 0.40 are presented for the initial low speed family of airfoils. Also, modifications to the 17-percent low-speed airfoil to reduce the pitching-moment coefficient and to the 21-percent low speed airfoil results are shown for two new medium speed airfoils with thickness ratios of 13 percent and 17 percent and design-lift coefficients of 0.30. Applications of NASA-developed airfoils to general aviation aircraft are summarized.
Subject: AERODYNAMIC
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:22:30Z | |
| date available | 2017-09-04T15:22:30Z | |
| date copyright | 01/01/1979 | |
| date issued | 1979 | |
| identifier other | NCNKAEAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/22649 | |
| description abstract | The status of NASA low and medium speed airfoil research is discussed. Effects of airfoil thickness-chord ratios varying from 9 percent to 21 percent on the section characteristics for a design lift coefficient of 0.40 are presented for the initial low speed family of airfoils. Also, modifications to the 17-percent low-speed airfoil to reduce the pitching-moment coefficient and to the 21-percent low speed airfoil results are shown for two new medium speed airfoils with thickness ratios of 13 percent and 17 percent and design-lift coefficients of 0.30. Applications of NASA-developed airfoils to general aviation aircraft are summarized. | |
| language | English | |
| title | NASA-TM-78709 | num |
| title | NASA low-and medium-speed airfoil development | en |
| type | standard | |
| page | 22 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1979 | |
| contenttype | fulltext | |
| subject keywords | AERODYNAMIC | |
| subject keywords | AIRCRAFT | |
| subject keywords | AIRFOILS | |
| subject keywords | ASSESSMENT | |
| subject keywords | AVIATION | |
| subject keywords | COEFFICIENTS | |
| subject keywords | DESIGN | |
| subject keywords | GENERAL | |
| subject keywords | LOW | |
| subject keywords | RATIO | |
| subject keywords | SPEED | |
| subject keywords | STRUCTURAL | |
| subject keywords | TECHNOLOGY | |
| subject keywords | TESTS | |
| subject keywords | THICKNESS | |
| subject keywords | TUNNEL | |
| subject keywords | WIND |