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ow section
row section Group of consecutive seat rows called to
board at the same time.
Roydazide Hot-isostatic-pressed sinide.
Royal Flight Single mission notified by Notam of flight
carrying at least one of certain nominated members of the
Royal Family [v. rarely, other VIP] (UK).
Royal Naval Aircraft Yard Major maintenance facility
for RN aircraft.
Royal Observer Corps Civilian body established to keep
watch on sky [and surface if necessary] and report occurrences
[22 September 1925, prefix Royal 9 April 1941]
(UK).
ROZ RON (G).
RP 1 Reporting point, or post.
2 Rocket projectile.
3 Rocket propellant (fuel designation prefix).
4 Route package.
5 Rapid prototyping.
6 Report [when you are] passing.
7 Reticulated polyurethane.
8 Routeing protocol.
9 Radar processor.
R/P 1 Rocket projectile (WW2 usage).
2 Receiver processor.
R:P Reserve to production ratio [petroleum].
RP-1 1 Common kerosene fuel for rockets and ramjets.
2 One-minute racetrack pattern for holding.
RPA 1 Remotely piloted aircraft.
2 Recreational pilot, airplane.
3 Rotorcraft pilot’s associate.
RPAR Revenue per available room.
RPB Retarded practice bomb.
RPC 1 Recreational Pilot[’s] Certificate (FAA).
2 Remote procedure call[s].
RPCC Rotating-parts cycle count.
RPCM 1 Reply processing and channel management.
2 Remote power-control module (ISS4).
RPD 1 Rapid, or rapid inertial alignment.
2 Random pulse discrimination.
RPDE Reliability and performance in demonstrator
engine[s].
RPDL Receiver pilot director light.
RPDLY Rapidly.
RPDU Remote power-distribution unit.
RPE Rocket Propulsion Establishment (Westcott,
UK).
RPEH Rate per engine hour.
RPF Reticulated-plastics foam.
RPFS Radio position-fixing system.
RPFT Rapid pucker factor take-off.
RPG 1 Rounds [of ammunition] per gun.
2 Regional Planning Group (ICAO).
3 Radar product generator.
4 Receiver/processor group.
5 Recreational pilot, gyroplane.
RPGT Radar procedure[s] ground trainer.
RPH 1 Remotely piloted helicopter.
2 Recreational pilot, helicopter.
RPI 1 Runway point of intersection.
2 Rapid process improvement.
3 Retail price index [various suffixes].
RPK 1 Revenue passenger-kilometres.
2 Fragmentation bomblet (as well as a series of
Kalashnikov LMGs) (USSR, R).
RR
RPL 1 Radiophotoluminescence.
2 Rated power level (electronic).
3 Runway planning length.
4 Repetitive flight plan; S adds system.
5 Regional Plans (ICAO Standing Group).
6 Recreational Pilot licence/license.
RPLC Replace[d].
RPM 1 Revenue passenger-mile[s].
2 Rounds per minute (often rds/min or spm).
3 Reliability prediction manual.
4 Research and program(me) management.
5 Remotely piloted munition.
6 Radar performance monitor.
7 Rendezvous pitch manoeuvre.
rpm, r.p.m. Revolutions per minute; SI dictates rev/min.
RPMB Remotely piloted mini-blimp.
RPMD Repeater projected map display.
RPO 1 Rotorcraft program office.
2 Resident project officer.
RPOA Recognised private-operation agency (CCITT).
RPOADS Remotely piloted observation aircraft designator
system (USA).
RPOW Relative power, one-way (SSR and other
radars).
RPP Reversible-pitch propeller.
RPPG Radar Planning and Policy Group (ICAO).
RPPL Recreational Private Pilot’s Licence [likely to be
valid to AUW