Method and apparatus for an improved autopilot system providing for late runway change
An improvement to an autopilot flight director system allows the flight crew to make a late runway change without disengaging the autopilot. The improved system allows a transition to a new runway assignment if radio altitude is greater than 1500 feet. Control logic determines whether or not localiz...
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| creator | CASHMAN JOHN E CHANEY ROBERT E AGATE ROBERT M LILISCHKIES RONALD GRIFFIN, III JOHN C MCROBERTS TIMOTHY C BLOOM RONALD J HOVLAND CHARLES A MACDONALD JOSEPH M SANTONI, JR. FRANK P |
| description | An improvement to an autopilot flight director system allows the flight crew to make a late runway change without disengaging the autopilot. The improved system allows a transition to a new runway assignment if radio altitude is greater than 1500 feet. Control logic determines whether or not localizer and/or glideslope have been captured and enters predetermined modes as a function thereof to effect a transition to the new approach while enabling instrument landing system retuning while maintaining autopilot engagement. Flight crew workload during approach is significantly reduced as a result of implementation of the improved system. |
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| subjects | CONTROLLING PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES |
| title | Method and apparatus for an improved autopilot system providing for late runway change |
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