Aircraft terrain warning system with configuration modified warning and improved mode switching
US4987413A · kind A · utility
42Cited by
12References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1987 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Jun 4, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C5/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A proximity to terrain warning system for aircraft utilizes a first set of warning criteria to generate a warning in the event of insufficient terrain clearance after take off. A different set of criteria are employed to generate warnings when the aircraft in in a cruise or approach phase of flight or on a tactical mission. Mode switching is provided to select the appropriate criteria and to select an excessive descent after take-off set of warning criteria in addition to the first set of criteria when appropriate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.