Method and device for determining the heading with wind (or with current) of an air (or sea-going) vehicle
US4996776A · kind A · utility
Inventor
Key dates
| Filing date | Feb 28, 1989 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Feb 28, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G1/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a method and device for determining the heading with wind (or with current) of an air (or sea-going) vehicle. The device of the invention comprises a support element with two coaxial compass cards, one of which is assigned to the heading without wind and the other serves as indication of the heading with wind, as well as a plurality of rings which may be mounted for rotation coaxially with said compass cards and in the coronal space therebetween. Each of the rings corresponds to a particular situation of the aircraft determined by a wind speed/aircraft speed ratio and has a pointer intended to be oriented along the wind bearing. A series of lines ensures the correspondence between the compass cards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.