Method and device for protecting an aircraft against clear air turbulence
US7581441B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2008 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Mar 26, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01W2001/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method of protecting aircraft in flight against clear air turbulence (CAT). Consider an aircraft occupying a position P and moving horizontally at a speed V, a plane PH0 being the horizontal plane passing through P. According to the invention, the method includes performing at least one pair of evaluations of air temperature TB, TC at two points B, C which have positions that are symmetrical relative to the plane PH0. At least one pair of horizontal air speed evaluations are performed VHB, VHC at the two points B, C; An air temperature gradient is determined; A horizontal air speed gradient is determined; An index signifying a presence of CAT is determined; The preceding steps are repeated; A trend is analyzed over time of the index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.