R
- radar
- radar approach
- radar contact
- radar control
- radar data
- radar dome
- radar identification
- radar service
- radar surveillance
- radar vectoring
- radial
- radial engine
- radio-frequency
- radio altimeter
- radio detecting and ranging
- radio direction finder
- radio direction finding
- radio navigation
- radio navigation aid
- radio wave
- radionavigation
- radiosonde
- radiosonde station
- radiotelephony
- radius to fix
- radome
- rain-gauge shield
- rain gauge
- rain shower
- raingauge
- raingauge shield
- ram air temperature
- ram air turbine
- ramp
- rapid exit taxiway
- rapid exit taxiway indicator lights
- rate of climb
- rate of descent
- rated maximum continuous thrust
- rated output
- rated takeoff thrust
- rated thrust
- reaction engine
- readback
- real time
- receiver autonomous integrity monitoring
- recovery position
- rectifier
- reduced runway separation minima
- reduced vertical separation minimum
- reference atmosphere
- reference landing speed
- refief rain
- refueler
- refuelling
- refuelling tanker
- regional accident and incident investigation organization
- regional air service
- regional aircraft
- regional airport
- regional aviation
- regional carrier
- regional jet
- regional safety oversight organization
- registered baggage
- regular training
- rejected landing
- rejected takeoff
- relación de pressiones del motor
- relative wind
- relay
- relief flight
- relief valve
- remote air traffic control towers
- remote pilot
- remote pilot station
- remote towers
- remotely-piloted aircraft
- remotely-piloted aircraft system
- remotely piloted aircraft
- removal of disable aircraft
- rendez-vous point
- rendezvous point
- repair
- repetitive flight plan
- required navigation performance
- rescue and firefighting
- rescue and firefighting service
- rescue boat
- rescue coordination centre
- rescue operation
- reserve parachute
- respiratory protection equipment
- response time
- restricted area
- restricted articles
- resultant wind
- resultant wind force
- retractable landing gear
- retractable undercarriage
- revenue passenger-kilometres
- reverse pitch
- reverse thrust
- reversible-pitch propeller
- reversing cam
- revolutions per minute
- rib
- right-handed engine
- right-handed propeller
- right of overflight
- right of technical stop
- rigid airship
- rigid rotor
- rigid rotor system
- rip panel
- risk
- risk assessment
- road
- road-holding position light
- road-holding position marking
- road-holding position sign
- rocket-assisted takeoff
- rocket (1)
- rocket (2)
- rocket motor
- rockoon
- roger
- roll
- roll-on landing
- roll guidance
- roll over
- rotary-wing aircraft
- rotary wing aircraft
- rotating beacon
- rotating swash plate
- rotation speed
- rotational speed
- rotative beacon
- rotor
- rotor blade (airfoil)
- rotor blade tip
- rotor brake
- rotor disk
- rotorcraft
- rough air
- route
- route segment
- rudder
- rudder pedal
- ruddervator
- ruddevator
- runway
- runway-holding position
- runway-in-use
- runway alignment beacon
- runway centerline
- runway centerline lighting
- runway centre line
- runway centre line lighting
- 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 heading
- runway hol
- runway holding position
- runway incursion
- runway lead-in lighting system
- runway lighting system
- runway safety
- runway shoulder
- runway side stripe marking
- runway slope
- runway strip
- runway surface condition
- runway surface condition descriptor
- runway threshold
- runway threshold identification lights
- runway threshold light(s)
- runway turn pad
- runway vacated sign
- runway visual range