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Wind-tunnel investigation of rectangular air-duct entrances in the leading edge of an naca 23018 wing, special report
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1940 |
| Description | A preliminary investigation of a number of duct entrances of rectangular shape installed in the leading edge of a wing was conducted in the NACA 20-foot tunnel to determine the external drag, the available pressure, the critical Mach numbers, and the effect on the maximum lift. The results showed that the most satisfactory entrances, which had practically no effect on the wing characteristics, had their lips approximately in the vertical plane of the leading edge of the wing. This requirement necessitated extending the lips outside the wing contour for all except the small entrances. Full dynamic pressure was found to be available over a fairly wide range of angle of attack. The critical Mach number for a small entrance was calculated to be as high as that for the plain wing but was slightly lower for the larger entrances tested. |
| File Size | 1114778 |
| Page Count | 19 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20090014885 |
| Archival Resource Key | ark:/13960/t38089611 |
| Language | English |
| Publisher Date | 1940-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
