Method and apparatus for obtaining accurately the angle of attack of an aircraft
US3930610A · kind A · utility
9Cited by
4References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jun 3, 1974 |
| Grant date | Jan 6, 1976 |
| Priority date | — |
| Expiry date | Jun 3, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to a method and apparatus for obtaining the angle of attack of an aircraft developed as a result of an appropriate processing of the vertical speed, the airspeed, and the pitch attitude of the aircraft. The latter involves resolving the inverse sine of the vertical speed signal over the airspeed signal, and subsequently differentially combining the end product of the inverse sine computation and the chord line angle signal. The air speed signal is corrected by a corrective network which receives a feedback signal proportional to the angle of attack as well as a signal proportional to drift angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.