Method and system for calculating altitude above runway for an aircraft
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United States of America Patent
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-
Mar 2, 2010
Grant Date -
Jun 18, 2009
app pub date -
Dec 12, 2007
filing date -
Dec 12, 2007
priority date (Note) -
In Force
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Abstract
The system contains a receiver in communication with a programmable device. The receiver receives a first horizontal distance from the aircraft to a threshold of the runway, an angle of a glide path, and a threshold crossing height. The programmable device determines a projected ground distance from the aircraft to the threshold. The programmable device determines a projected ground distance from the threshold to a glide path intercept point. The programmable device determines a vertical value along the glide path relative to a projected ground distance between the aircraft and the glide path intercept point. The programmable device determines a synthetic altitude above runway for the aircraft.
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