Precision Approach Radar
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Precision Approach Radar (PAR) is a type of radar guidance system designed to provide lateral and vertical guidance to an aircraft pilot for landing up to the missed approach point. Controllers monitoring the PAR displays observe each aircraft's position and issue instructions to the pilot that keep the aircraft on course. It is similar to an Instrument Landing System (ILS) but requires control instructions.
Precision Approach Radars are heavily used by Navy and Marine Corps Air Traffic Control Facilities. Most of these facilities use the FPN-63 Precision Approach Radar. This Radar can provide precision guidance to a distance of 20 miles in normal mode and 15 miles in MTI mode. The OJ-333 Radar scope is the indicator which the Air Traffic Controller uses to provide instructions to the pilot.
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