Avionics Magazine presents the third edition of our comprehensive Aerospace Acronym Guide. Since we started compiling the list in 2002, the number of acronyms and abbreviations has grown by 660 entries, from 2,306 to 2,966.
Though it is not an exhaustive list, we trust it will serve you well.
-
RA radio altitude
-
RA resolution advisories
-
RA routing area
-
RAA Regional Airline Association
-
RAAF Royal Australian Air Force
-
RAAS runway awareness and advisory system
-
RAC-GAT Russian/American Coordinating Group for Air Traffic Control
-
RACs runway analysis charts
-
RAD rapid application development
-
RAE Royal Aircraft Establishment (Farnborough)
-
RAF requirements analysis folder
-
RAF Royal Air Force (UK)
-
RAI radio altimeter indicator
-
RAIM receiver autonomous integrity monitoring
-
RALA request automatic line adapter
-
RALT radar altimeter
-
RAM random access memory
-
RAMICS rapid airborne mine clearance system
-
RAP required automation performance
-
RATMP required air traffic management performance
-
RCAG remote control air-to-ground
-
RCAT re-configurable cockpit and avionics testbed
-
RCD radar cable detection
-
RCE radio control equipment
-
RCF required communications performance
-
RCL radio communications link
-
RCO remote communications outlet
-
RCP radio control panel
-
RCR routing and circuit restoral
-
RCSU romote control and status unit
-
RCU radio control unit
-
RCU remote control unit
-
RC&W rack connectors and wiring
-
R&D research and development
-
RD (taxi) route deviation
-
RD routing domain
-
RDARA regional domestic air route area
-
RDC routing domain confederation
-
RDDMI radio digital distance magnetic indicator
-
RDF RD format
-
RDI radio direction indicator
-
RDI RD identifier
-
RDP radar data processing
-
RDR radar
-
RDSS radio determination satellite system
-
RDT&E research, development, test and evaluation
-
REA radar electronics assembly
-
RE&D research, engineering and development
-
REDAC Research, Engineering and Development Advisory Committee (FAA)
-
REP required environmental performance
-
RERB reliability enhancement and re-engining program
-
REQ request
-
RER residual error rate
-
REVS radar-enhanced vision system
-
RF radio frequency
-
RFC request for comments
-
RFG requirement focus group
-
RFI radio frequency interference
-
RFI request for information
-
RFO request for offer
-
RFP request for proposal
-
RFQ request for quote
-
RFU radio frequency unit
-
RGB red green blue
-
RGCSP Review of the General Concept of Separation Panel (ICAO)
-
RGS relay ground station
-
RH radio handler
-
RHF ridiculously high frequency
-
RHO response on handoff
-
R&M reliability and maintainability
-
RHSM reduced horizontal separation minima
-
RI runway incursion
-
RIB routing information base
-
RIN Royal Institute of Navigation (UK)
-
RIP routing information protocol
-
RISC reduced instruction set computer
-
RLE response on link establishment
-
RLG ring laser gyro
-
RLS reliable link service
-
RM regional manager
-
RM&A reliability, maintainability and availability
-
RMCDE radar message conversion and distribution equipment
-
RMI radio magnetic indicator
-
RMMS remote maintenance monitoring system
-
RMP risk management plan
-
RMS risk management system
-
RMS root mean square
-
RNAV area navigation
-
RNP required navigational performance
-
RNR receive not ready
-
RO radio operator
-
ROA recognized operating agency
-
ROC rate of climb
-
ROC rest of operational capability
-
ROD rate of descent
-
ROIP radio over Internet protocol
-
ROM read only memory
-
ROM rough order of magnitude
-
RON remain over night
-
RP routing protocol
-
RPDE rapid preliminary development effort
-
RPGs rocket-propelled grenades
-
RPM revolutions per minute
-
RPOA Recognized Private Operation Agency (CCITT)
-
RR receive ready
-
RRI router reference implementation
-
RSDP reliable sequencing delivery-confirmation protocol
-
RSN regional sub-network
-
RSP required surveillance performance
-
RPZ Ramensky Priborostroitelny Zavod (Russian avionics manufacturer)
-
RSSI received signal strength indicator
-
RT radio telecommunication
-
RTA required time of arrival
-
RTC red time clock
-
RTCA Radio Technical Commission for Aeronautics
-
RTCM Radio Technical Commission for Maritime Services
-
RTK real-time kinematic
-
RTM radio transmission module
-
RTOS real time operating system
-
RTO rejected takeoff
-
RTR remote transmitter receiver site
-
RTS request to send
-
RTSP required total system performance
-
RTTI run-time type identification
-
RTU radio tuning unit
-
RU rack unit (1 inch)
-
RVP required vision performance
-
RVR runway visual range
-
RVSM reduced vertical separation minimum
-
R/W read/write
-
RWM R/W memory
-
RWP required weather performance
-
RWR radar warning receiver
-
RX receiver
-
RZ return to zero
?>