Acronyms: R

Acronym	Name
R&D	Research and Development
R,E&D	Research, Engineering and Development
RA	Resolution Advisory
RA	Risk Assessment
RAA	Remote Advisory Airport
RADLO	Regional Air Defense Liaison Office
RAIL	Runway Alignment Indicator Lights
RAIM	Receiver Autonomous Integrity Monitoring
RAIS	Remote Airport Information Service
RAPCO	Radar Approach Control (USAF)
RAPCON	Radar Approach Control
RAPCON	Radar Approach Control (FAA)
RAPPI	Random Access Plan Position Indicator
RASP	Regional Airport System Plan
RAT	Risk Assessment Team
RATCC	Radar Air Traffic Control Center
RATCF	Radar Air Traffic Control Facility (USN)
RBC	Rotating Beam Ceilometer
RBDPE	Radar Beacon Data Processing Equipment
RBDT	Ribbon Display Terminals
RBPM	Remote Beacon Performance Monitor
RBSS	Radar Bomb Scoring Squadron
RC	Radio-Controlled
RCAG	Remote Center Air/Ground
RCAG	Remote Communications Air/Ground
RCAS	Radio Coverage Analysis System
RCC	Rescue Coordination Center
RCCC	Regional Communications Control Center
RCCC	Regional Communications Control Centers
RCE	Radio Control Equipment
RCF	Remote Communication Facility
RCF	Remote Communications Facility
RCIU	Remote Control Interface Unit
RCL	Radio Communications Link
RCLR	RCL Repeater
RCLR	Radio Communications Link Repeater
RCLS	Runway Centerline Lighting System
RCLT	RCL Terminal
RCM	Reliability Centered Maintenance
RCO	Remote Communications Outlet
RCU	Remote Control Unit
RD	Requirements Document
RD	Rotor Diameter
RDAT	Digitized Radar Data
RDP	Radar Data Processing
RDSIM	Runway Delay Simulation Model
RDVS	Rapid Deployment Voice Switch
RE	Resident Engineer
REC	Request Evaluation Checklist
REDAC	Research, Engineering & Development Advisory Committee
REDMACS	Research, Engineering, and Development Monitoring, Analysis and Control System
REGIS	Regional Information System
REIL	Runway End Identification Light
REIL	Runway End Identification Lights
REIL	Runway End Identifier Lights
REL	Runway Entrance Lights
RF	Radio Frequency
RFI	Radio Frequency Interference
RFI	Request for Information
RFI	Return on Future Investment
RFM	Rotorcraft Flight Manual
RFQ	Request for Quotes
RID	Remote Identification
RIIEP	Runway Incursion Information Evaluation Program
RIP	Runway Incursion Program
RIWS	Runway Incursion Warning Systems
RL	General Aviation Reliever Airport
RLIM	Runway Light Intensity Monitor
RM	Risk Management
RMCC	Remote Monitor Control Center
RMCF	Remote Monitor Control Facility
RMI	Radio Magnetic Indicator
RML	Radar Microwave Link
RML	Radio Microwave Link
RMLR	RML Repeater
RMLS	Remote Monitoring and Logging System
RMLT	RML Terminal
RMM	Remote Maintenance Monitoring
RMMC	Remote Maintenance Monitoring and Control
RMMS	Remote Maintenance Monitoring System
RMMS	Remote Maintenance Monitoring Systems
RMS	Remote Maintenance Subsystem
RMS	Remote Monitoring Subsystem
RMS	Risk Management System
RMSC	Remote Monitoring Subsystem Concentrator
RMT	Resource Management Tool
RMT	Risk Management Team
RNAV	Area Navigation
RNP	Required Navigation Performance
RNP-10	Required Navigation Performance
ROA	Record of Assistance
ROC	Regional Operations Center
ROC	Required Obstacle Clearance
ROD	Record of Decision
ROM	Read-Only Memory
ROSA	Report of Service Activity
ROSHM	Regional Occupational Safety and Health Manager
ROT	Runway Occupancy Time
RP	Restoration Priority
RPAT	RNP Parallel Approach Runway Transitions

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Acronyms: R