曝光台 注意防骗
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has been observed by radar to be off course. ONER
reporting parameters and procedures are contained in
FAAO 7110.82, Monitoring of Navigational Performance
In Oceanic Areas.
OCEANIC PUBLISHED ROUTE- A route established
in international airspace and charted or
described in flight information publications, such as
Route Charts, DOD Enroute Charts, Chart Supplements,
NOTAMs, and Track Messages.
OCEANIC TRANSITION ROUTE- An ATS route
established for the purpose of transitioning aircraft
to/from an organized track system.
ODAPS-
(See OCEANIC DISPLAY AND PLANNING
SYSTEM.)
ODP-
(See OBSTACLE DEPARTURE PROCEDURE.)
OFF COURSE- A term used to describe a situation
where an aircraft has reported a position fix or is
observed on radar at a point not on the ATC‐approved
route of flight.
OFF‐ROUTE VECTOR- A vector by ATC which
takes an aircraft off a previously assigned route.
Altitudes assigned by ATC during such vectors
provide required obstacle clearance.
OFFSET PARALLEL RUNWAYS- Staggered
runways having centerlines which are parallel.
OFFSHORE/CONTROL AIRSPACE AREA- That
portion of airspace between the U.S. 12 NM limit and
the oceanic CTA/FIR boundary within which air
traffic control is exercised. These areas are
established to provide air traffic control services.
Offshore/Control Airspace Areas may be classified
as either Class A airspace or Class E airspace.
OFT-
(See OUTER FIX TIME.)
OM-
(See OUTER MARKER.)
OMEGA- An RNAV system designed for long‐range
navigation based upon ground‐based electronic
navigational aid signals.
ON COURSEa.
Used to indicate that an aircraft is established on
the route centerline.
b. Used by ATC to advise a pilot making a radar
approach that his/her aircraft is lined up on the final
approach course.
(See ON‐COURSE INDICATION.)
ON‐COURSE INDICATION- An indication on an
instrument, which provides the pilot a visual means
of determining that the aircraft is located on the
centerline of a given navigational track, or an
indication on a radar scope that an aircraft is on a
given track.
ONE‐MINUTE WEATHER- The most recent one
minute updated weather broadcast received by a pilot
from an uncontrolled airport ASOS/AWOS.
ONER-
(See OCEANIC NAVIGATIONAL ERROR
REPORT.)
OPERATIONAL-
(See DUE REGARD.)
OPPOSITE DIRECTION AIRCRAFT- Aircraft are
operating in opposite directions when:
a. They are following the same track in reciprocal
directions; or
b. Their tracks are parallel and the aircraft are
flying in reciprocal directions; or
c. Their tracks intersect at an angle of more than
135.
OPTION APPROACH- An approach requested and
conducted by a pilot which will result in either a
touch‐and‐go, missed approach, low approach,
stop‐and‐go, or full stop landing.
(See CLEARED FOR THE OPTION.)
(Refer to AIM.)
ORGANIZED TRACK SYSTEM- A series of ATS
routes which are fixed and charted; i.e., CEP,
NOPAC, or flexible and described by NOTAM; i.e.,
NAT TRACK MESSAGE.
OROCA- An off‐route altitude which provides
obstruction clearance with a 1,000 foot buffer in
2/14/08 Pilot/Controller Glossary
PCG O-3
nonmountainous terrain areas and a 2,000 foot buffer
in designated mountainous areas within the United
States. This altitude may not provide signal coverage
from ground‐based navigational aids, air traffic
control radar, or communications coverage.
OTR-
(See OCEANIC TRANSITION ROUTE.)
OTS-
(See ORGANIZED TRACK SYSTEM.)
OUT- The conversation is ended and no response is
expected.
OUTER AREA (associated with Class C airspace)-
Nonregulatory airspace surrounding designated
Class C airspace airports wherein ATC provides radar
vectoring and sequencing on a full‐time basis for all
IFR and participating VFR aircraft. The service
provided in the outer area is called Class C service
which includes: IFR/IFR-standard IFR separation;
IFR/VFR-traffic advisories and conflict resolution;
and VFR/VFR-traffic advisories and, as appropriate,
safety alerts. The normal radius will be 20 nautical
miles with some variations based on site‐specific
requirements. The outer area extends outward from
the primary Class C airspace airport and extends from
the lower limits of radar/radio coverage up to the
ceiling of the approach control's delegated airspace
excluding the Class C charted area and other airspace
as appropriate.
(See CONFLICT RESOLUTION.)
(See CONTROLLED AIRSPACE.)
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