RFTP Request For Technical Proposal RFU Radio Frequency Unit RGB Red/Green/Blue RGCSP Review.of.the.General.Concept.of.Separation.
Panel
RH Radio.Handler
RHI Range.and.Height.Indicator
RHO Response.on.Handoff
RHSM Reduced.Horizontal.Separation.Minima
RIB (.1.).Right.Inboard..
(.2.).Routing.Information.Base
RIP Routing.Information.Protocol
RIPS Recorder.Independent.Power.Supply
RISC Reduced.Instruction.Set.Computer
RIU Radio.Interface.Unit
RJ Regional.Jet
R/L Red.Label
RA Radio.Altitude
RLD Rijksluchtvaartdienst.(The.Netherlands’.Civil.
Aviation.Agency)
RLE Response.on.Link.Establishment
RLG Ring.Laser.Gyros
RLI Relative.Location.Indicator
RLP Ring.Laser.Gyro
RLS (.1.).Reliable.Link.Source..
(.2.).Remote.Light.Sensor
RLY Relay
R&M Reliability.and.Maintainability
RM&A Reliability.Maintainability.and.Availability
RMA Remote.Maintenance.Access.
RMI Radio.Magnetic.Indicator
RMMS RM.Management.System

RMP (.1.).Radio.Management.Panel. (.2.).Remote.Maintenance.Panel RMT Remote R-NAV Area.Navigation RNG Range RNGA Range.Arc RNP Required Navigation Performance. A statement
of.the.navigation.performance.necessary.for.
operation within a defined airspace.
RNR Receive.Not.Ready RNTP Radio.Nav.Tuning.Panel RO ( 1 ) Radio Operator .
(
 2 ) Roll Out ROA Recognized Operating Agency ROB Right Outboard ROC ( 1 ) Rate Of Climb .

(
 2 ) Rate of Operational Capability ROD Rate Of Descent ROL Roll ROLL Movement.about.the.longitudinal.(front.to.back).

axis.of.the.aircraft.
Rollout  Rollout starts from the first contact of the wheels with the runway and finishes when the airplane
has.slowed.to.a.safe.taxi.speed.(in.the.order.of. 30.knots).
ROM  ( 1 ) Read Only Memory .
( 2 ) Rough Order of Magnitude RON Remain Over Night ROT Runway Occupancy Time ROTHR Relocatable Over-The-Horizon Radar ROUTE An ordered group of flight reference points
(Airports,.Navaids,.Geographic.Reference.Points,.
etc.) representing part or all of a planned flight
path.

RP  Routing.Protocol 
RPDU  Remote.Power.Distribution.Unit 
RPI  Rapid.Process.Improvement 
RPM  Revolutions.Per.Minute 
RPOA  Recognized Private Operation Agency (CCITT)