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Method for implementing required navigational performance procedures

  • US 7,302,318 B2
  • Filed: 03/10/2006
  • Issued: 11/27/2007
  • Est. Priority Date: 03/10/2005
  • Status: Active Grant
First Claim
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1. A method for designing an approach path for an aircraft approaching a particular runway comprising the steps:

  • selecting a runway;

    gathering topographic data for an obstacle evaluation area for the selected runway, identifying all upwardly projecting obstacles in the obstacle evaluation area;

    laying out a preliminary approach path to the runway, including a missed approach segment;

    calculating an obstacle clearance surface for the preliminary approach path;

    calculating a momentary descent portion of the obstacle clearance surface;

    adjusting the obstacle clearance surface such that none of the identified obstacles intersects the obstacle clearance surface, wherein the obstacle clearance surface comprises a final approach obstacle clearance segment, a momentary descent segment and a missed approach segment.

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