instrument approach procedure


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instrument approach procedure

[′in·strə·mət a¦prōch prə‚sē·jər]
(navigation)
A series of predetermined maneuvers for the orderly transfer of an aircraft under instrument flight conditions from the initial approach to a landing, or to a point from which a landing can be made visually.

instrument approach procedure

instrument approach procedureclick for a larger image
A series of predetermined maneuvers by reference to flight instruments with protection from obstacles from the initial approach fix, or where applicable, from the beginning of a defined arrival route to a point from which a landing can be completed and thereafter, if a landing is not completed, to a position at which holding or en-route obstacle clearance criteria apply (ICAO). The instrument approach charts indicate these procedures.
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3 miles from the ship, a distance closer than is required by Naval Air Training and Operating Procedures Standardization (NATOPS) instrument approach procedures.
In Brisbane, Australia, government sponsored trials demonstrated that RNP instrument approach procedures saved aircraft operators 882,000 pounds of jet fuel a year, even though only 18 percent of the aircraft were capable of flying the procedures.
Instrument Approach Procedures on the large-screen Kindle DX electronic book reader