AIRCRAFT ABBREVIATIONS

BACK

r/min Revolutions per Minute
rem/hr Rems per Hour
R Radius
R Rankine
R Red
R Resistor
R Right
R Yaw Rate
R&D Research and Development
R/hr Roentgens per Hour
R/AD Retro/Adaptation Drawing
R/C Rate of Climb
R/D Rate of Descent
R/H Radar Height
R/I Radio/Inertial
R/I Removal/Installation
R/L Reading Light
R/T Radio Transmit
R/T Receiver Transmitter Unit
RadM Radioactive Material
RA "Radio Altimeter, Radio Altitude"
RA Redundancy Assurance
RA Resolution Advisory
RAC Rotor Active Clearance
RAC Rules of the Air and Air Traffic Control
RACC Rotor Active Clearance Control
RACON Radar Beacon
RACSB Rotor Active Clearance Start Bleed
RAD Radio
RAD Roll Anticipation Distance
RADCON Radar Data Converter
RADVR Random Access Digital Video Reproducer
RAIL Runway Alignment Indicator Light System
RALTU Reprogrammable Annunciator Light Test Unit
RAM Random Access Memory
RAPCON Radar Approach Control
RAT Ram Air Temperature
RAT Ram Air Turbine
RAX Random Access Transfer Memory
RBN Radio Beacon
RBP Right Bottom Plug
RC Reference Chord
RC Repetitive Chime
RCC Remote Charge Converter
RCCB Remote Control Circuit Breaker
RCCU Remote Calibration Control Unit
RCDG Recording
RCDR Recorder
RCL Recall
RCLM Runway Center Line Marking
RCLS Runway Center Line Light System
RCP Reverse Current Protection
RCPT Receptacle
RCPTN Reception
RCVR Receiver
RCVY Recovery
RD Retro Drawing
RD Right Display
RDDMI Radio Dual Distance Magnetic Indicator
RDNG Reading
RDY Ready
RECIRC "Recirculate, Recirculation"
RECOG Recognition
RECONF Reconfiguration
RECT Rectifier
RED Reduction
REDCR Reducer
REDUND Redundancy
REF Reference
REF ALIGN Reference Alignment
REFLNG Refueling
REFR Refrigerator
REFUEL Refueling
REG Register
REG Regulator
REIL Runway End Identification Lights
REL Release
REL Reluctance
REP Reporting Point
REPL BY Replaced by
RES Resistance
RET Return
RETR Retract
RETRD Retracted
RETRG Retracting
RETRN Retraction
REV Reverse
REV "Revise, Revision"
RF Radio Frequency
RFC Request for Change
RFI Radio Frequency Interference
RFI Request for Information
RFP Request for Proposal
RFS Reason for Selection
RFS Regardless of Feature Size
RFU Radio Frequency Unit
RFW Request for Work
RGLRD Regulated
RGLTG Regulating
RGLTN Regulation
RGTR Register
RH Right Hand
RHEO Rheostat
RHL Rudder Hinge Line
RJB Radio Junction Box
RK Rack
RLA Reverser Lever Angle
RLG Ring Laser Gyro
RLS Remote Light Sensor
RLS Right Line Select Key
RLSED Released
RLTD Related
RLY Relay
RM Radio Magnetic
RMCU Remote Magnetic Compensation Unit
RMI Radio Magnetic Indicator
RMO Request for Modification Order
RMO Retrofit Modification Offer
RMO Retrofit Modification Order
RMP Radio Management Panel
RMP Right Middle Plug
RMS Root Mean Square
RMT Remote
RMU Radio Management Unit
RNAV Area Navigation
RNG Range
RNI Radio Navigation Indicator
ROLR Roller
ROM Read Only Memory
ROTG Rotating
RPDR Reproducer
RPG Report Program General
RPLNT Repellent
RPM Revolution per Minute
RPTG Repeating
RPTR Repeater
RPU Receiver Processor Unit
RQ Recommended Quantity
RQRD Required
RR Low or Medium Range Frequency Radio Range Station
RR Rolls Royce
RR Rudder Rib
RS Rear Spar
RS Repeating Stroke
RSA Request for Service Allowance
RSP Responder Beacon
RSR Route Surveillance Radar
RSS Root Sum Square
RST Reset
RSU Raster Shading Unit
RSV Reserve
RSVR Reservoir
RTA Receiver Transmitter ARINC
RTC Real Time Clock
RTCA Radio Technical Commission for Aeronautics
RTE Route
RTF Radio Telephony
RTG Rating
RTK Revenue Tonne Kilometre
RTL Rudder Travel Limiting
RTN Return
RTNR Retainer
RTO Rejected Takeoff
RTOLW Runway Takeoff and Landing Weight
RTOW Runway Takeoff Weight
RTP Right Top Plug
RTRSW Rotary Switch
RTRY Rotary
RTS Return to Seat
RTU Rate of Turn Unit
RUD Rudder
RVDT Rotary Variable Differential Transducer
RVR Runway Visual Range
RVS Reverse
RVSN Reversion
RVT Rivet
RVT Rotary Variable Transformer
RWDS Rearwards
RWK Rework
RWY Runway
RZ Return to Zero
R-LMF Right Side Local Maintenance Function
R-OMS Right Side Onboard Maintenance System
RAAS Runway Awareness and Advisory System
RACA Ram Air Channel Actuator
RAI Ram Air Inlet
RAIMS Radio and Audio Integrating Management System
RATC Remote Air Traffic Control
RCCBM RCCB Module
RCD RAAS Configuration DataBase
RCF Right Center Fuselage
RCT Rear Center Tank
RDC Remote Data Concentrator
RDL Resident Data Loader
RDU Receiver Decoder Unit
READG Reading
RECN Repair Engineering Change Note
REGUL Regulation
ROLS Remote Oil Level Sensor
RPCU Residual Pressure Control Unit
RPF Reporting Processing Function
RPSA Rotating Pressure Sensing Assembly
RTM Real Time Monitoring
RTR Router
RTT Return To Tank
RVCP Remote Video Control Panel
RVSM Reduced Vertical Separation Minimum
RW Right Wing
RX Receive
RCC Remote Control Center
REP Repository
RET Retract
RSS Receiver Surveillance System
RTU Radar Transceiver Unit
RADIUS Remote Authentication Dial-In User Service
RAO Ram Air Outlet
RBPU Rudder and Brake Pedal Unit
REW Recoverable Empty Weight
RLD Required Landing Distance
RLF Relief
RNP Required Navigation Performance
ROP Runway Overrun Protection
ROPS Runway Overrun Prevention System
ROT Runway Occupancy Time
ROW Runway end Overrun Warning
RTBC Refuel and Towing on Battery Contactor

BACK