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OUTER COMPASS LOCATOR-
(See COMPASS LOCATOR.)
OUTER FIX- A general term used within ATC to
describe fixes in the terminal area, other than the final
approach fix. Aircraft are normally cleared to these
fixes by an Air Route Traffic Control Center or an
Approach Control Facility. Aircraft are normally
cleared from these fixes to the final approach fix or
final approach course.
OR
OUTER FIX- An adapted fix along the converted
route of flight, prior to the meter fix, for which
crossing times are calculated and displayed in the
metering position list.
OUTER FIX ARC- A semicircle, usually about a
50-70 mile radius from a meter fix, usually in high
altitude, which is used by CTAS/HOST to calculate
outer fix times and determine appropriate sector
meter list assignments for aircraft on an established
arrival route that will traverse the arc.
OUTER FIX TIME- A calculated time to depart the
outer fix in order to cross the vertex at the ACLT. The
time reflects descent speed adjustments and any
applicable delay time that must be absorbed prior to
crossing the meter fix.
OUTER MARKER- A marker beacon at or near the
glideslope intercept altitude of an ILS approach. It is
keyed to transmit two dashes per second on a 400 Hz
tone, which is received aurally and visually by
compatible airborne equipment. The OM is normally
located four to seven miles from the runway threshold
on the extended centerline of the runway.
(See INSTRUMENT LANDING SYSTEM.)
(See MARKER BEACON.)
(Refer to AIM.)
OVER- My transmission is ended; I expect a
response.
OVERHEAD MANEUVER- A series of predetermined
maneuvers prescribed for aircraft (often in
formation) for entry into the visual flight rules (VFR)
traffic pattern and to proceed to a landing. An
overhead maneuver is not an instrument flight rules
(IFR) approach procedure. An aircraft executing an
overhead maneuver is considered VFR and the IFR
flight plan is cancelled when the aircraft reaches the
“initial point” on the initial approach portion of the
maneuver. The pattern usually specifies the
following:
a. The radio contact required of the pilot.
b. The speed to be maintained.
c. An initial approach 3 to 5 miles in length.
d. An elliptical pattern consisting of two 180
degree turns.
e. A break point at which the first 180 degree turn
is started.
f. The direction of turns.
g. Altitude (at least 500 feet above the conventional
pattern).
h. A “Roll‐out” on final approach not less than 1/4
mile from the landing threshold and not less than 300
feet above the ground.
Pilot/Controller Glossary 2/14/08
PCG O-4
OVERLYING CENTER- The ARTCC facility that
is responsible for arrival/departure operations at a
specific terminal.
2/14/08 Pilot/Controller Glossary
PCG P-1
P
P TIME-
(See PROPOSED DEPARTURE TIME.)
P‐ACP-
(See PREARRANGED COORDINATION
PROCEDURES.)
PAN‐PAN- The international radio‐telephony urgency
signal. When repeated three times, indicates
uncertainty or alert followed by the nature of the
urgency.
(See MAYDAY.)
(Refer to AIM.)
PAR-
(See PRECISION APPROACH RADAR.)
PAR [ICAO]-
(See ICAO Term PRECISION APPROACH
RADAR.)
PARALLEL ILS APPROACHES- Approaches to
parallel runways by IFR aircraft which, when
established inbound toward the airport on the
adjacent final approach courses, are radar‐separated
by at least 2 miles.
(See FINAL APPROACH COURSE.)
(See SIMULTANEOUS ILS APPROACHES.)
PARALLEL MLS APPROACHES-
(See PARALLEL ILS APPROACHES.)
PARALLEL OFFSET ROUTE- A parallel track to
the left or right of the designated or established
airway/route. Normally associated with Area Navigation
(RNAV) operations.
(See AREA NAVIGATION.)
PARALLEL RUNWAYS- Two or more runways at
the same airport whose centerlines are parallel. In
addition to runway number, parallel runways are
designated as L (left) and R (right) or, if three parallel
runways exist, L (left), C (center), and R (right).
PBCT-
(See PROPOSED BOUNDARY CROSSING
TIME.)
PDC-
(See PRE-DEPARTURE CLEARANCE.)
PERMANENT ECHO- Radar signals reflected from
fixed objects on the earth's surface; e.g., buildings,
towers, terrain. Permanent echoes are distinguished
from “ground clutter” by being definable locations
rather than large areas. Under certain conditions they
may be used to check radar alignment.
PHOTO RECONNAISSANCE- Military activity
　
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