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Aerodynamic derivatives for an oblique wing aircraft estimated from flight data by using a maximum likelihood technique
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Maine, R. E. |
| Copyright Year | 1978 |
| Description | There are several practical problems in using current techniques with five degree of freedom equations to estimate the stability and control derivatives of oblique wing aircraft from flight data. A technique was developed to estimate these derivatives by separating the analysis of the longitudinal and lateral directional motion without neglecting cross coupling effects. Although previously applied to symmetrical aircraft, the technique was not expected to be adequate for oblique wing vehicles. The application of the technique to flight data from a remotely piloted oblique wing aircraft is described. The aircraft instrumentation and data processing were reviewed, with particular emphasis on the digital filtering of the data. A complete set of flight determined stability and control derivative estimates is presented and compared with predictions. The results demonstrated that the relatively simple approach developed was adequate to obtain high quality estimates of the aerodynamic derivatives of such aircraft. |
| File Size | 1727888 |
| Page Count | 74 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780025111 |
| Archival Resource Key | ark:/13960/t0wq4s080 |
| Language | English |
| Publisher Date | 1978-10-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Flight Tests Aircraft Stability Degrees of Freedom Cross Coupling Wings Performance Prediction Aerodynamic Characteristics Remotely Piloted Vehicles Aircraft Configurations Stability Derivatives Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
