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by pilots to request that the entire route of flight be
read verbatim in an ATC clearance. Such request
should be made to preclude receiving an ATC
clearance based on the original filed flight plan when
a filed IFR flight plan has been revised by the pilot,
company, or operations prior to departure.
REQUIRED NAVIGATION PERFORMANCE
(RNP)– A statement of the navigational performance
necessary for operation within a defined airspace.
The following terms are commonly associated with
RNP:
a. Required Navigation Performance Level or
Type (RNP‐X). A value, in nautical miles (NM), from
the intended horizontal position within which an
aircraft would be at least 95‐percent of the total flying
time.
b. Required Navigation Performance (RNP)
Airspace. A generic term designating airspace, route
(s), leg (s), operation (s), or procedure (s) where
minimum required navigational performance (RNP)
have been established.
c. Actual Navigation Performance (ANP). A
measure of the current estimated navigational
performance. Also referred to as Estimated Position
Error (EPE).
d. Estimated Position Error (EPE). A measure of
the current estimated navigational performance. Also
referred to as Actual Navigation Performance (ANP).
e. Lateral Navigation (LNAV). A function of area
navigation (RNAV) equipment which calculates,
displays, and provides lateral guidance to a profile or
path.
f. Vertical Navigation (VNAV). A function of area
navigation (RNAV) equipment which calculates,
displays, and provides vertical guidance to a profile
or path.
RESCUE COORDINATION CENTER- A search
and rescue (SAR) facility equipped and manned to
coordinate and control SAR operations in an area
designated by the SAR plan. The U.S. Coast Guard
and the U.S. Air Force have responsibility for the
operation of RCCs.
(See ICAO term RESCUE CO‐ORDINATION
CENTRE.)
RESCUE CO‐ORDINATION CENTRE [ICAO]- A
unit responsible for promoting efficient organization
of search and rescue service and for coordinating the
conduct of search and rescue operations within a
search and rescue region.
RESOLUTION ADVISORY-A display indication
given to the pilot by the traffic alert and collision
avoidance systems (TCAS II) recommending a
maneuver to increase vertical separation relative to an
intruding aircraft. Positive, negative, and vertical
speed limit (VSL) advisories constitute the resolution
advisories. A resolution advisory is also classified as
corrective or preventive
RESTRICTED AREA-
(See SPECIAL USE AIRSPACE.)
(See ICAO term RESTRICTED AREA.)
RESTRICTED AREA [ICAO]- An airspace of
defined dimensions, above the land areas or territorial
waters of a State, within which the flight of aircraft
is restricted in accordance with certain specified
conditions.
RESUME NORMAL SPEED- Used by ATC to
advise a pilot that previously issued speed control
restrictions are deleted. An instruction to “resume
normal speed” does not delete speed restrictions that
are applicable to published procedures of upcoming
segments of flight, unless specifically stated by ATC.
This does not relieve the pilot of those speed
restrictions which are applicable to 14 CFR
Section 91.117.
RESUME OWN NAVIGATION- Used by ATC to
advise a pilot to resume his/her own navigational
responsibility. It is issued after completion of a radar
Pilot/Controller Glossary 2/14/08
PCG R-6
vector or when radar contact is lost while the aircraft
is being radar vectored.
(See RADAR CONTACT LOST.)
(See RADAR SERVICE TERMINATED.)
RMI-
(See RADIO MAGNETIC INDICATOR.)
RNAV-
(See AREA NAVIGATION.)
(See ICAO Term AREA NAVIGATION.)
RNAV APPROACH- An instrument approach
procedure which relies on aircraft area navigation
equipment for navigational guidance.
(See AREA NAVIGATION.)
(See INSTRUMENT APPROACH
PROCEDURE.)
ROAD RECONNAISSANCE- Military activity
requiring navigation along roads, railroads, and
rivers. Reconnaissance route/route segments are
seldom along a straight line and normally require a
lateral route width of 10 NM to 30 NM and an altitude
range of 500 feet to 10,000 feet AGL.
ROGER- I have received all of your last
transmission. It should not be used to answer a
question requiring a yes or a no answer.
(See AFFIRMATIVE.)
(See NEGATIVE.)
ROLLOUT RVR-
(See VISIBILITY.)
ROUTE- A defined path, consisting of one or more
courses in a horizontal plane, which aircraft traverse
over the surface of the earth.
　
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