R

• R
• RA (1)
• RA (2)
• RA (3)
• RAAS
• radar position indicator
• radar position symbol
• radio direction finding
• radio frequency identification
• radio magnetic indicator
• radiocommunication failure
• radiotelephony
• RAeS
• RAG
• RAI
• RAIL
• RAIM
• RASGPA
• RASS
• rate of climb
• rate of descent
• rated output
• rated thrust
• RB
• RBN
• RCA
• RCC
• RCF
• RCL
• RCLL
• RCLM
• RCLS
• RCO
• RCP
• RDF
• RDH
• RDOF
• RE
• reach cruising altitude
• receiver autonomous integrity monitoring
• reclearance in flight
• REDL
• reduced vertical separation minimum
• reference datum height
• reference path data selector
• regional aviation safety group pan america
• regional office
• regional safety oversight organization
• regional supplementary procedures
• REIL
• rejected take-off distance available, helicopter
• rejected takeoff
• REL
• remote AFIS
• remote altimeter setting source
• remote pilot station
• remotely-piloted aircraft
• remotely-piloted aircraft system
• RENL
• repetitive flight plan
• report leaving
• report reaching
• request flight plan
• request level change en route
• request level not available
• request supplementary flight plan
• required communication performance
• required navigation performance
• required navigation performance authorization required
• RESA
• rescue and firefighting services
• rescue boat
• rescue coordination centre
• rescue sub-centre
• rescue vessel
• resolution advisory
• responder beacon
• restricted take off and landing weight
• return to service
• revenue passenger-kilometres
• revenue tonne-kilometers
• reverberation time
• RFFS
• RFID
• RFS
• RHC
• RI
• RI-A
• RI-VAP
• RIF
• right-hand circuit
• risk assessment
• RJ
• RL
• RLCE
• RLLS
• RLNA
• RMI
• RNAV
• RNP
• RNP AR
• RO (1)
• RO (2)
• RO (3)
• ROC (1)
• ROC (2)
• ROD
• romeo
• root sum square
• ROTAER
• RPA
• RPAS
• RPDS
• RPI
• RPKs
• RPL
• RPR
• RPS
• RPS (2)
• RQP
• RQS
• RR
• RSC
• RSCD
• RSOO
• RSP (1)
• RSP (2)
• RSS
• RT (1)
• RT (2)
• RTF
• RTHL
• RTK
• RTO
• RTODAH
• RTS
• RTZL
• runway
• runway alignment indicator
• runway alignment indicator lights
• runway arresting gear
• runway awareness and advisory system
• runway centre line
• runway centre line lights
• runway edge light
• runway end lights
• runway end safety area
• runway entrance lights
• runway excursion
• runway incursion
• runway incursion-animal
• runway incursion-vehicle, aircraft or person
• runway lead-in lighting system
• runway surface condition
• runway threshold light(s)
• runway touchdown zone lights
• runway visual range
• runway(s) cleared
• RV
• RVR
• RVSM
• RVV
• RWS
• RWY