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Aviation abbreviations
Please select a letter from below.
You will then be presented with a list of aviation terminology beginning
with that letter.
A B
C D
E F
G H
I J
K L
M N
O P
Q R
S T
U V
W X
Y Z
r/t
- radio
telephony. Voice communications, as opposed to WT, wireless telegraphy.
Also styled RTF.
rabbit lights - colloquialism for sequentially flashing lead-in
runway approach lights.
RAF - Royal Air Force
ramp weight - maximum permissible weight of an aircraft, which
exceeds maximum take-off weight by an allowance for fuel burned during
engine-start and taxi.
RAPID - change expected to take place in thirty minutes or less,
term used in mer reports.
RAS (1) - rectified airspeed. Indicated airspeed corrected for
instrument position error.
RAS (2) - Radar Advisory Service. Provided outside regulated
airspace to notify pilots of conflicting traffic and to advise suitable
avoiding action. Also RASA Radar Advisory Service Area.
rating - add-on qualification to a pilot's licence, e.g. Night
Rating, Multi-engine Rating, Instrument Rating, Seaplane Rating etc.
Individual Type Ratings are necessary to fly aircraft over 12,500 pounds
MTWA.
RBI - relative bearing indicator, displaying information from the
ADF.
RCL - runway centre-line.
RDO - radio.
RIS - Radar Information Service. Provided to notify pilots of
conflicting traffic outisde regulated airspace, but offering no avoiding
action.
RMI - radio magnetic indicator. A navigation aid which combines
DI, VOR and/or ADF display and will indicate bearings to stations,
together with aircraft heading.
RMK - remark(s).
RMU - radio management unit.
Rnav - area navigation. A system of radio navigation which
permits direct point-to-point off-airways navigation by means of an
on-board computer creating phantom VOR/DME transmitters termed
waypoints.
RON - remain over night (night-stop).
root - inner end of wing where it meets fuselage.
rpm - revolutions per minute.
RVR - runway visual range, a horizontal measurement of visibility
along a runway.
rwy - runway.
Rx -
receiver.
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