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Primary flight display presenting resolution advisory information provided by a traffic alert and collision avoidance system

  • US 5,185,606 A
  • Filed: 05/08/1990
  • Issued: 02/09/1993
  • Est. Priority Date: 05/08/1990
  • Status: Expired due to Fees
First Claim
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1. A display for presenting symbolically to an aircraft flight crew resolution advisory information developed by a Traffic Collision Avoidance System (TCAS) computer aboard an aircraft said computer providing a vertical speed limit output wherein said display comprises:

  • a line symbol representing the artificial horizon,a pitch scale extending perpendicularly to said line symbol and indicating pitch angles with reference to said line symbol,an aircraft reference symbol indicating by its position on said pitch scale the instantaneous aircraft pitch attitude, wherein said display further comprises;

    a pitch cue symbol havinga first line segment extending parallel to the artificial horizon and across said pitch scale, said first line-segment indicating a limit pitch value processed from said TCAS vertical speed limit output, andan area indicator extending from said line segment and indicating a range of pitch values bounded by said limit pitch value, which range of pitch values has to be avoided by the aircraft flight crew.

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