Terrain clearance warning system for aircraft
US4030065A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1976 |
| Grant date | Jun 14, 1977 |
| Priority date | — |
| Expiry date | Jul 19, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/935
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
By utilizing a radio altimeter in conjunction with a measure of the aircraft speed, landing gear position and flap position, an aircraft terrain warning system is made possible which provides a voice warning indicating that the aircraft is too low with respect to the terrain when the aircraft is above a predetermined speed. For aircraft speeds below the predetermined speed, a voice warning is provided when the aircraft is below a predetermined altitude with the landing gear up indicating that the aircraft is too low with the gear up and when the gear is down and the flaps are not in a landing position and the aircraft descends below a second predetermined altitude a voice warning is generated indicating that the aircraft is too low with flaps up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.