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Flight measurements of buffet characteristics of the f-104 airplane for selected wing-flap deflections
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Sefic, W. J. Friend, E. L. |
| Copyright Year | 1972 |
| Description | A flight program was conducted on the F-104 airplane to investigate the effects of moderate deflections of wing leading- and trailing-edge flaps on the buffet characteristics at subsonic and transonic Mach numbers. Selected deflections of the wing leading and trailing-edge flaps, individually and in combination, were used to assess buffet onset, intensity, and frequency; lift curves; and wing-rock characteristics for each configuration. Increased deflection of the trailing-edge flap delayed the buffet onset and buffet intensity rise to a significantly higher airplane normal-force coefficient. Deflection of the leading-edge flap produced some delay in buffet onset and the resulting intensity rise at low subsonic speeds. Increased deflection of the trailing-edge flap provided appreciable lift increments in the angle-of-attack range covered, whereas the leading-edge flap provided lift increments only at high angles-of-attack. The pilots appreciated the increased maneuvering envelope provided by the flaps because of the improved turn capability. |
| File Size | 1494476 |
| Page Count | 50 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720022354 |
| Archival Resource Key | ark:/13960/t6450fk1w |
| Language | English |
| Publisher Date | 1972-08-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft F-104 Aircraft Subsonic Speed Leading Edge Slats Aircraft Performance Transonic Speed Trailing Edge Flaps Aerodynamic Characteristics Buffeting Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
