11/3/22
Pilot/Controller Glossary
Area, and applicable En Route charts. Where joint
use is authorized, the name of the ATC controlling
facility is also shown.
Note: Temporary restricted areas are not charted.
(Refer to 14 CFR Part 73.)
(Refer to AIM.)
g.
Warning Area
−
A warning area is airspace of
defined dimensions extending from 3 nautical miles
outward from the coast of the United States, that
contains activity that may be hazardous to
nonparticipating aircraft. The purpose of such
warning area is to warn nonparticipating pilots of the
potential danger. A warning area may be located over
domestic or international waters or both.
SPECIAL VFR CONDITIONS
−
Meteorological
conditions that are less than those required for basic
VFR flight in Class B, C, D, or E surface areas and
in which some aircraft are permitted flight under
visual flight rules.
(See SPECIAL VFR OPERATIONS.)
(Refer to 14 CFR Part 91.)
SPECIAL VFR FLIGHT [ICAO]
−
A VFR flight
cleared by air traffic control to operate within Class
B, C, D, and E surface areas in meteorological
conditions below VMC.
SPECIAL VFR OPERATIONS
−
Aircraft operating
in accordance with clearances within Class B, C, D,
and E surface areas in weather conditions less than the
basic VFR weather minima. Such operations must be
requested by the pilot and approved by ATC.
(See SPECIAL VFR CONDITIONS.)
(See ICAO term SPECIAL VFR FLIGHT.)
SPEED
−
(See AIRSPEED.)
(See GROUND SPEED.)
SPEED ADJUSTMENT
−
An ATC procedure used to
request pilots to adjust aircraft speed to a specific
value for the purpose of providing desired spacing.
Pilots are expected to maintain a speed of plus or
minus 10 knots or 0.02 Mach number of the specified
speed. Examples of speed adjustments are:
a.
“Increase/reduce speed to Mach point
(number).”
b.
“Increase/reduce speed to (speed in knots)” or
“Increase/reduce speed (number of knots) knots.”
SPEED BRAKES
−
Moveable aerodynamic devices
on aircraft that reduce airspeed during descent and
landing.
SPEED SEGMENTS
−
Portions of the arrival route
between the transition point and the vertex along the
optimum flight path for which speeds and altitudes
are specified. There is one set of arrival speed
segments adapted from each transition point to each
vertex. Each set may contain up to six segments.
SPOOFING
−
Denotes emissions of GNSS
−
like
signals that may be acquired and tracked in
combination with or instead of the intended signals
by civil receivers. The onset of spoofing effects can
be instantaneous or delayed, and effects can persist
after the spoofing has ended. Spoofing can result in
false and potentially confusing, or hazardously
misleading, position, navigation, and/or date/time
information in addition to loss of GNSS use.
SPEED ADVISORY
−
Speed advisories that are
generated within Time
−
Based Flow Management to
assist controllers to meet the Scheduled Time of
Arrival (STA) at the meter fix/meter arc. See also
Ground
−
Based Interval Management
−
Spacing
(GIM
−
S) Speed Advisory.
SQUAWK (Mode, Code, Function)
−
Used by ATC
to instruct a pilot to activate the aircraft transponder
and ADS
−
B Out with altitude reporting enabled, or
(military) to activate only specific modes, codes, or
functions. Examples: “Squawk five seven zero
seven;” “Squawk three/alpha, two one zero five.”
(See TRANSPONDER.)
STA
−
(See SCHEDULED TIME OF ARRIVAL.)
STAGING/QUEUING
−
The placement, integration,
and segregation of departure aircraft in designated
movement areas of an airport by departure fix, EDCT,
and/or restriction.
STAND BY
−
Means the controller or pilot must
pause for a few seconds, usually to attend to other
duties of a higher priority. Also means to wait as in
“stand by for clearance.” The caller should
reestablish contact if a delay is lengthy. “Stand by” is
not an approval or denial.
STANDARD INSTRUMENT APPROACH PRO-
CEDURE (SIAP)
−
(See INSTRUMENT APPROACH PROCEDURE.)
STANDARD INSTRUMENT DEPARTURE (SID)
−
A preplanned instrument flight rule (IFR) air traffic
PCG S
−
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