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Ground proximity warning system, method and computer program product for controllably altering the base width of an alert envelope

  • US 6,484,071 B1
  • Filed: 02/01/2000
  • Issued: 11/19/2002
  • Est. Priority Date: 02/01/1999
  • Status: Expired due to Term
First Claim
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1. A ground proximity warning system comprising a processor for generating an alert envelope that define an alert region extending at least forward of a craft said processor defining the alert envelope based at least partially upon a base width proximate a current position of the craft and extending laterally relative to the craft and a look ahead distance extending forward of the craft, said processor altering the base width of the alert envelope depending upon the type of navigation equipment that provides the current position of the craft to the ground proximity warning system, wherein said processor also alters the base width of the alert envelope based upon the distance of the craft to a runway.

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