The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2009
Filed:
Mar. 26, 2008
Hervé Barny, Valence, FR;
Jean-claude Lehureau, Sainte Genevieve des Bois, FR;
Patrick Feneyrou, Igny, FR;
Hervé Barny, Valence, FR;
Jean-Claude Lehureau, Sainte Genevieve des Bois, FR;
Patrick Feneyrou, Igny, FR;
Thales, , FR;
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 Pbeing the horizontal plane passing through P. According to the invention, the method includes performing at least one pair of evaluations of air temperature T, Tat two points B, C which have positions that are symmetrical relative to the plane P. At least one pair of horizontal air speed evaluations are performed VH, VHat 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.