Aircraft systems and methods for providing landing approach alerts
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United States of America Patent
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Mar 13, 2018
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app pub date -
Nov 4, 2015
filing date -
Nov 4, 2015
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Abstract
A method is provided for monitoring a landing approach of an aircraft. The method includes receiving instrument landing system (ILS) signals; determining a glideslope deviation from the ILS signals; disabling, when the glideslope deviation is less than a first predetermined threshold, at least one glideslope alert function; evaluating a current glideslope condition by comparing a designated glideslope angle to a glideslope check value; and re-enabling the at least one glideslope alert function when the glideslope check value differs from the designated glideslope angle by more than a second predetermined threshold.
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