| 主权项 |
1. An aircraft terrain awareness warning system, comprising:
a. a database comprising recognized waypoints and user-entered waypoints, each of the recognized user-entered waypoints representing a geographical area, at least one of the recognized waypoints including a recognized landing zone associated with a unique landing-zone identifier at least one of the user-entered waypoints not included in the recognized waypoints and including a recognized landing zone associated with a unique landing-zone identifier, and b. an interface for entering flight plan details of an aircraft including at least one user-entered waypoint that is not a recognized waypoint, the at least one user-entered waypoint having an identifier including a textual code that indicates the nature of the waypoint, wherein the terrain awareness system is configured to parse the user-entered waypoints for identifiers to determine if one or more entered waypoints includes an identifier indicating a landing zone, such that alerts are suppressed in the terrain awareness system during a landing operation thereof performed at the entered waypoint having an identifier associated with a landing zone. |
