. abbreviation: RCAG
remote communications outlet A facility remotely established from a FSS or flight information centre (FIC) for the provision of communications between aircraft and this FSS or FIC.
. abbreviation: RCO
Fr: installation radio télécommandée
rendezvous A prearranged meeting at a given time and location from which to begin an action or phase of an operation or to which to return after an operation. Fr: point de rassemblement
reporting point
A specific fix in relation to which the position of an aircraft can be reported.
Fr: point de compte rendu
required navigation performance
A statement of the navigation performance accuracy necessary for operation within a defined airspace.
. abbreviation: RNP
Fr: qualité de navigation requise
required navigation performance capability airspace As geographically delineated in the Designated Airspace Handbook (DAH), controlled airspace within the Canadian Domestic Airspace (CDA) designated for area navigation (RNAV) operations. Only aircraft certified as meeting the required navigation performance capability (RNPC) are permitted to operate on published, high level fixed RNAV routes or receive improved ATC separation minimums based on RNPC. Certification is dependent upon crew training and navigation equipment that permits position determination within ± 4 NM. Note: Aircraft certified for Canadian minimum navigation performance specifications (CMNPS)  and North Atlantic minimum navigation performance specifications (NAT MNPS) operations are deemed to be RNPC certified.
. also called: RNPC airspace
Fr: espace aérien de performances minimales de navigation requises
required navigation performance type A containment value expressed as a distance in nautical miles from the intended position within which flights would be for at least 95 percent of the total flying time. For example, RNP 4 represents a navigation accuracy of ± 4 NM on a 95 percent containment basis.  Fr: type de qualité de navigation requise
required visual reference In respect of an aircraft on an approach to a runway, the section of the approach area of the runway or the visual aids that, when viewed by the pilot of the aircraft, enable the pilot to make an assessment of the aircraft position and the rate of change of position relative to the nominal  flight path in order to continue the approach and complete the landing. Fr: référence visuelle requise
rescue co-ordination centre A centre established within an assigned search and rescue area to promote the efficient organization of search and rescue operations.
. abbreviation: RCC
Fr: centre de coordination de sauvetage
resolution advisory An advisory issued by airborne collision avoidance system (ACAS)/traffic alert and collision avoidance system (TCAS) to alert pilots to potential conflicting air traffic and provide them with  a suggested flight-path change in the vertical plane to reduce the possibility of collision.