Research/Patents/US 5646854
US 5646854

LATERAL GUIDANCE TRANSITION CONTROL APPARATUS FOR AIRCRAFT AREA NAVIGATION SYSTEMS

Assignee

HONEYWELL INC.

Filed

Nov 14, 1989

Granted

Jul 8, 1997

Location

GLENDALE AZ US

Abstract

An apparatus for providing lateral guidance through a plurality of waypoints utilizing curved path transitions. When the curved path transitions overlap due to a short leg there is a discontinuity in the desired path of the aircraft, causing the aircraft to experience excessive and oscillatory bank angles to maneuver through the turn. The invention adjusts the transition parameters so that there are no discontinuities in the flight path by computing a new turn radius, turn center, or turn center coordinates, in accordance with the course through the waypoints. The invention determines which flight plan legs are short and calculates the parameters so that the path will not violate air space boundaries and bank angles will be minimized. A circular path is generated tangential to course changes in the same or opposite direction, irrespective of the value of the flight plan leg length.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Sep 18, 1990

Rescinded

May 15, 1996

Duration

5 years, 8 months

Inventor

  • 1ERIK T. BEVAN

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records