Patent ID: 6571155
Filing Date: 2003-05-27
Classification: G01C,G05D

Abstract:
A method of providing navigation performance based flight path deviation information comprising:providing at least one flight path scale, wherein each flight path scale comprises a reference point bounded by end markers extending in at least one of a lateral and vertical direction, wherein the reference point relates to an actual flight path, and wherein the end markers represent a required navigation performance (RNP); determining a deviation of the actual flight path of the aircraft relative to a predefined flight path and thereafter displaying at least one moveable deviation pointer on the at least one flight path scale based upon the deviation and the reference point; and determining an actual navigation performance (ANP) and the RNP based upon a flight phase of the aircraft and thereafter displaying a representation of at least one extendable navigation error on the at least one flight path scale based upon the ANP and RNP, wherein the representation extends from at least one of the end markers toward the reference point of the at least one flight path scale to thereby define at least one navigation performance suspect region.