Precision approach path indicator systems and light assemblies useful in same
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United States of America Patent
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Jul 13, 2010
Grant Date -
Feb 14, 2008
app pub date -
Oct 10, 2007
filing date -
Aug 22, 2005
priority date (Note) -
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Abstract
Precision approach path indicator systems (PAPIs) effective in providing approach slope guidance for aircraft approaching an airport runway are provided. Such PAPIs include a plurality of light assemblies positioned on or in proximity to an airport runway and structured or configured to be effective in providing approach slope guidance light signals to a pilot of an aircraft approaching a runway. Each light assembly includes a light source comprising light emitting diodes (LEDs), preferably a first array of LEDs and a second array of LEDs.
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