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Aviation
Aviation, aircraft and air-traffic acronyms explained.
PAPI
Precision Approach Path Indicator
PAR
Precision Approach Radar
PAR
Preferred Arrival Route
PDC
Pre-departure Clearance
PFD
Personal Flotation Device
PIC
Pilot-in-Command
crew position responsible for control of an aircraft and ultimately responsible for all operations of the aircraft
PinS
Point-in-Space
PIREP
Pilot Weather Report
POB
Persons on Board
POFZ
Precision Obstacle Free Zone
POI
Principal Operations Inspector
PPS
Precise Positioning Service
PRM
Precision Runway Monitor
PT
Procedure Turn
QICP
Qualified Internet Communications Provider
RA
Resolution Advisory
RAA
Remote Advisory Airport
RAIM
Receiver Autonomous Integrity Monitoring
RAIS
Remote Airport Information Service
RBDT
Ribbon Display Terminals
RC
Radio-Controlled
RCAG
Remote Center Air/Ground
RCC
Rescue Coordination Center
RCLS
Runway Centerline Lighting System
RCO
Remote Communications Outlet
RD
Rotor Diameter
REIL
Runway End Identifier Lights
REL
Runway Entrance Lights
RFM
Rotorcraft Flight Manual
RID
Remote Identification
RLIM
Runway Light Intensity Monitor
RMI
Radio Magnetic Indicator
RNAV
Area Navigation
RNP
Required Navigation Performance
ROC
Required Obstacle Clearance
RPAT
RNP Parallel Approach Runway Transitions
RPIC
Remote Pilot-in-Command
RVR
Runway Visual Range
RVSM
Reduced Vertical Separation Minimum
RWSL
Runway Status Light