Aeronautical Terms beginning with R

RA

Resolution Advisory

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RAA

Remote Advisory Airport

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RAIM

Receiver Autonomous Integrity Monitoring

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RAIS

Remote Airport Information Service

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RBDT

Ribbon Display Terminals

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RCAG

Remote Center Air/Ground

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RCC

Rescue Coordination Center

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RCLS

Runway Centerline Lighting System

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RCO

Remote Communications Outlet

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RD

Rotor Diameter

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REIL

Runway End Identifier Lights

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REL

Runway Entrance Lights

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RFM

Rotorcraft Flight Manual

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RIL

Runway Intersection Lights

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RLIM

Runway Light Intensity Monitor

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RMI

Radio Magnetic Indicator

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RNAV

Area Navigation

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RNP

Required Navigation Performance

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ROC

Required Obstacle Clearance

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RPAT

RNP Parallel Approach Runway Transitions

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RVR

Runway Visual Range

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RVSM

Reduced Vertical Separation Minimum

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RWSL

Runway Status Light

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