Method and system for controlling the decelerated approach of an aerodyne
US4232839A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1977 |
| Grant date | Nov 11, 1980 |
| Priority date | — |
| Expiry date | Nov 10, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S1/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for controlling the decelerated approach of an aerodyne on radioignment generally referred to as "glide," in particular for the purpose of reducing its fuel consumption and reducing the noise, mainly in the final stage of the approach, by approaching the glide at high speed, initiating the descent according to the glide angle, also at high speed then beginning a decelerated phase in order to reach a predetermined speed V sel+k, k being generally equal to 10 knots, on reaching a predetermined altitude, h.sub.F, and then passing progessively from the speed V sel+k to the speed V sel. From the time when the aerodyne reaches the axis of the glide path, a course is determined in two sections, as regards the variables of speed and altitude, for reaching the point situated at the altitude h.sub.F at the given speed V sel+k, namely a first section, at the beginning of which the aerodyne which was previously travelling along the glide, begins a first braking stage, the speed of the aerodyne, during this first section, bein reduced by at least a predetermined speed .DELTA.V.sub.1, and a second section, at the beginning of which the aerodyne initiates a second braking stage, the grad…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.