Patent ID: 7941251
Filing Date: 2011-05-10
Classification: G08G

Abstract:
1. A method for guiding an aircraft, comprising: determining at least one instrument landing system (ILS) threshold; establishing at least one final approach course (FAC) deviation threshold for the aircraft; receiving at least one ILS localizer error; calculating at least one FAC deviation; comparing the at least one ILS localizer error and the at least one FAC deviation with corresponding ILS and FAC thresholds, respectively; and performing a standard localizer capture maneuver if the at least one ILS localizer error reaches a corresponding ILS threshold prior to the at least one FAC deviation reaching a corresponding FAC threshold, and performing a modified capture maneuver if the at least one FAC deviation reaches the corresponding FAC threshold prior to the at least one ILS localizer error reaching the corresponding ILS threshold.