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Sideslip-induced static pressure errors in flight-test measurements
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bach Jr., Ralph E. Tran, Duc Parks, Edwin K. |
| Copyright Year | 1990 |
| Description | During lateral flight-test maneuvers of a V/STOL research aircraft, large errors in static pressure were observed. An investigation of the data showed a strong correlation of the pressure record with variations in sideslip angle. The sensors for both measurements were located on a standard air-data nose boom. An algorithm based on potential flow over a cylinder that was developed to correct the pressure record for sideslip-induced errors is described. In order to properly apply the correction algorithm, it was necessary to estimate and correct the lag error in the pressure system. The method developed for estimating pressure lag is based on the coupling of sideslip activity into the static ports and can be used as a standard flight-test procedure. The estimation procedure is discussed and the corrected static-pressure record for a typical lateral maneuver is presented. It is shown that application of the correction algorithm effectively attenuates sideslip-induced errors. |
| File Size | 380798 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900018386 |
| Archival Resource Key | ark:/13960/t02z64k13 |
| Language | English |
| Publisher Date | 1990-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Instrumentation Flight Tests Static Pressure Errors V/stol Aircraft Laminar Boundary Layer Algorithms Estimating Aircraft Maneuvers Sideslip Potential Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
