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Flight experience with altitude hold and mach hold autopilots on the yf-12 aircraft at mach 3
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gilyard, G. B. Smith, J. W. |
| Copyright Year | 1978 |
| Description | The altitude hold mode of the YF-12A airplane was modified to include a high-pass-filtered pitch rate feedback along with optimized inner loop altitude rate proportional and integral gains. An autothrottle control system was also developed to control either Mach number or KEAS at the high-speed flight conditions. Flight tests indicate that, with the modified system, significant improvements are obtained in both altitude and speed control, and the combination of altitude and autothrottle hold modes provides the most stable aircraft platform thus far demonstrated at Mach 3 conditions. |
| File Size | 1164996 |
| Page Count | 23 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780024116 |
| Archival Resource Key | ark:/13960/t1jh8bz79 |
| Language | English |
| Publisher Date | 1978-08-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Throttling Flight Tests Yf-12 Aircraft High Pass Filters Supersonic Cruise Aircraft Research Supersonic Flight Altitude Control Airborne/spaceborne Computers Automatic Pilots Control Stability Angle of Attack Flight Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
