R
- radar
- radar approach
- radar approach controller
- radar contact
- radar control
- radar controller
- radar display
- radar dome
- radar identification
- radar separation
- radar service
- radar surveillance
- radar vectoring
- radial
- radial engine
- radial spar
- rádio-farol não directional
- radio-frequency
- radio altimeter
- radio detecting and ranging
- radio direction finder
- radio direction finding
- radio frequency
- radio navigation
- radio navigation aid
- radio wave
- radionavigation
- radiosonde
- radiosonde station
- radiotelephony
- radius to fix
- radome
- rain
- rain-gauge shield
- rain gauge
- rain shower
- raingauge
- raingauge shield
- ram air temperature
- ram air turbine
- ramjet
- ramjet engine
- rapid deceleration
- rapid exit taxiway
- rapid exit taxiway indicator lights
- ratchet
- rate of climb
- rate of descent
- rated horsepower
- rated maximum continuous thrust
- rated output
- rated pressure ratio
- rated takeoff thrust
- rated thrust
- reaction engine
- reaction turbine
- readback
- real time
- rearward flight
- receiver autonomous integrity monitoring
- recent rain
- reciprocating engine
- reciprocity
- recovery position
- rectangular course
- reduced vertical separation minimum
- reference atmosphere
- reference landing speed
- refuel manifold
- refueler
- refuelling
- refuelling area
- refuelling hose
- refuelling tanker
- regenerative cooling
- regional aircraft
- regional aviation
- regional safety oversight organization
- registered baggage
- regular training
- rejected landing
- rejected takeoff
- relative wind
- release to service
- relief rain
- remote air traffic control tower
- remote pilot
- remote pilot station
- remote towers
- remotely
- remotely-piloted
- remotely-piloted aircraft
- remotely-piloted aircraft system
- remotely piloted aircraft
- removal of disabled aircraft
- rendez-vous point
- rendezvous point
- repair
- repetitive flight plan
- reported traffic
- reporting point
- required inspection items
- required navigation performance
- rescue and firefighting
- rescue and firefighting service
- rescue boat
- rescue coordination centre
- rescue operation
- reserve parachute
- respiratory protection equipment
- response time
- restraint system
- restricted area
- resultant wind
- resultant wind force
- retarder parachute
- retractable landing gear
- retractable undercarriage
- revenue passenger-kilometres
- reverse pitch
- reverse thrust
- reversible-pitch propeller
- reversible pitch propeller
- reversing cam
- reversing system
- rhumb line
- rib
- ribbon parachute
- ridge
- rigging angle of incidence
- rigging line
- rigid airship
- rigid rotor
- rigid rotor system
- rip panel
- risk
- risk assessment
- road
- road-holding position
- road-holding position light
- road-holding position marking
- road-holding position sign
- road-holding positionroad-holding position
- rocket
- rocket-assisted takeoff
- rocketsonde
- rockoon
- roger
- roll
- roll-on landing
- roll-out speed
- roll guidance
- roller bearing
- rolling takeoff
- romeo
- rosa do vento [POR]
- rotary-wing aircraft
- rotary wing aircraft
- rotating beacon
- rotating dynamic airfoil
- rotating swash plate
- rotation speed
- rotational speed
- rotative beacon
- rotor
- rotor blade (airfoil)
- rotor blade tip
- rotor brake
- rotor disk
- rotor lift
- rotorcraft
- rough air
- route
- route segment
- rudder
- rudder gust lock
- rudder pedal
- ruddevator
- rules of engagement
- running landing
- running takeoff
- runway
- runway-holding position
- runway-holding position marking
- runway-in-use
- runway centerline
- runway centerline lighting
- runway centre line
- runway centre line lights
- runway centre line marking
- runway condition assessment matrix
- runway condition code
- runway condition report
- runway designation marking
- runway designation sign
- runway edge lights
- runway end lights
- runway end safety area
- runway entrance lights
- runway excursion
- runway exit sign
- runway guard lights
- runway holding position
- runway incursion
- runway lead-in lighting system
- runway lighting system
- runway lights
- runway overrun
- runway safety
- runway shoulder
- runway side stripe marking
- runway slope
- runway status lights
- runway strip
- runway surface condition
- runway surface condition descriptor
- runway threshold
- runway threshold identification lights
- runway threshold light(s)
- runway turn pad
- runway turn pad lights
- runway vacated sign
- runway visibility value
- runway visual range