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174 Cards in this Set
- Front
- Back
ACCELERATE STOP DISTANCE AVAILABLE
(ASDA) |
The length of the takeoff run available
plus the length of the stopway, if provided. |
|
ADEQUATE VIS REF (Adequate Visual Reference)
|
Runway markings or runway lighting that
provides the pilot with adequate visual reference to continuously identify the takeoff surface and maintain directional control throughout the takeoff run. |
|
AIRCRAFT APPROACH CATEGORY (USA
TERPS) |
A grouping of aircraft based on a speed
of Vref, if specified, or if Vref is not specified, 1.3 VS0 at the maximum certificated landing weight. |
|
AERONAUTICAL RADIO, INCORPORATED
(ARINC) |
An international radio network providing
air-to-ground communications available on a subscription (fee) basis. |
|
AIRCRAFT APPROACH CATEGORY (ICAO)
|
The
following ICAO table indicates the specified range of handling speeds (IAS in Knots) for each category of aircraft to perform the maneuvers specified. These speed ranges have been assumed for use in calculating airspace and obstacle clearance for each procedure |
|
CategoryA
|
Speed less than 91 knots.
|
|
Category B
|
Speed 91 knots or more but less
than 121 knots. |
|
Category C
|
Speed 121 knots or more but less
than 141 knots. |
|
Category D
|
Speed 141 knots or more but less
than 166 knots. |
|
Category E
|
Speed 166 knots or more.
|
|
AIR DEFENSE IDENTIFICATION ZONE
|
The area
of airspace over land or water, extending upward from the surface, within which the ready identification, the location, and the control of aircraft are required in the interest of national security |
|
AIRPORT ELEVATION/FIELD ELEVATION
|
The
highest point of an airports usable runways measured in feet from mean sea level. |
|
AIRPORT REFERENCE POINT (ARP
|
A point on
the airport designated as the official airport location. |
|
AIRWAY (ICAO)
|
A control area or portion thereof
established in the form of a corridor equipped with radio navigation aids. |
|
AIRWAY (USA)
|
A Class “E” airspace area established
in the form of a corridor, the centerline of which is defined by radio navigational aids. |
|
ALTERNATE AERODROME (ICAO)
|
An aerodrome
to which an aircraft may proceed when it becomes either impossible or inadvisable to proceed to or to land at the aerodrome of intended landing. |
|
ALTERNATE AIRPORT (USA)
|
An airport at which
an aircraft may land if a landing at the intended airport becomes inadvisable. |
|
AIR TRAFFIC CONTROL CLEARANCE
|
An
authorization by air traffic control, for the purpose of preventing collision between known aircraft, for an aircraft to proceed under specified traffic conditions within controlled airspace. |
|
ALTIMETER SETTING
|
The barometric pressure
reading used to adjust a pressure altimeter for variations in existing atmospheric pressure or to the standard altimeter setting (29.92 inches of mercury, 1013.2 hectopascals or 1013.2 millibars). |
|
ALTITUDE (ICAO)
|
The vertical distance of a level,
a point, or an object considered as a point, measured from Mean Sea Level (MSL). |
|
ALTITUDE (USA)
|
The height of a level, point or
object measured in feet Above Ground Level (AGL) or from Mean Sea Level (MSL). |
|
AGL Altitude
|
Altitude expressed in feet measured
above ground level (QFE). |
|
MSL Altitude
|
Altitude expressed in feet measured
from mean sea level (QNH). |
|
Indicated Altitude
|
The Altitude as shown by
an altimeter. |
|
AREA NAVIGATION/RNAV
|
A method of navigation
that permits aircraft operations on any desired course within the coverage of station referenced navigation signals or within the limits of self contained system capability. |
|
BRAKING ACTION (GOOD, FAIR, POOR, NIL)
|
A
report of conditions on the airport movement area providing a pilot with a degree/quality of braking that might be expected. Braking action is reported in terms of good, fair, poor, or nil. |
|
ARRIVAL ROUTES (ICAO)
|
Routes on an instrument
approach procedure by which aircraft may proceed from the enroute phase of flight to the initial approach fix. |
|
CARDINAL ALTITUDES OR FLIGHT LEVELS
|
“Odd” or “Even” thousand-foot altitudes
or flight levels; e.g., 5000, 6000, 7000, FL60, FL250, FL260, FL270. |
|
CEILING (ICAO)
|
The height above the ground or
water of the base of the lowest layer of cloud below 6000 meters (20,000 feet) covering more than half the sky. |
|
CEILING (USA)
|
The height above the earth’s surface
of the lowest layer of clouds or obscuring phenomena that is reported as “broken”, “overcast”, or “obscuration”, and not classified as “thin”, or “partial”. |
|
DECISION ALTITUDE/HEIGHT (DA/H) (ICAO)
|
A
specified altitude or height (A/H) in the precision approach at which a missed approach must be initiated if the required visual reference to continue the approach has not been established. |
|
Decision altitude (DA)
|
is referenced to mean sea
level (MSL) decision height |
|
(DH)decision height
|
is referenced
to the threshold elevation. |
|
DECISION HEIGHT (DH) (USA)
|
With respect to
the operation of aircraft, means the height at which a decision must be made, during an ILS or PAR instrument approach, to either continue the approach or to execute a missed approach. |
|
NOTE: Jeppesen approach charts use the abbreviation
|
DA(H). The decision altitude “DA” is referenced
to mean sea level (MSL) and the parenthetical decision height (DH) is referenced to the TDZE or threshold elevation. A DA(H) of 1440 ft (200 ft is a Decision Altitude of 1440 ft and a Decision Height of 200 ft. |
|
CONTROL AREA (ICAO)
|
A controlled airspace
extending upwards from a specified limit above the earth. |
|
CONTROLLED AIRSPACE
|
An airspace of
defined dimensions within which air traffic control service is provided to IFR flights and to VFR flights in accordance with the airspace classification. NOTE: Controlled airspace is a generic term which covers ATS airspace Classes “A”, “B”, “C”, “D”, and “E”. |
|
CONTROL ZONE (ICAO)
|
A controlled airspace
extending upwards from the surface of the earth to a specified upper limit. |
|
COURSE
|
a. The intended direction of flight in the horizontal
plane measured in degrees from north. b. The ILS localizer signal pattern usually specified as front course or back course. |
|
DIRECT ROUTE
|
A requested route published
on a Jeppesen Enroute or Area chart to assist pilots who have previous knowledge of acceptance of these routes by ATC. |
|
DISPLACED THRESHOLD
|
A threshold that is
located at a point on the runway other than the designated beginning of the runway. |
|
FEEDER ROUTE
|
Routes depicted on instrument
approach procedure charts to designate routes for aircraft to proceed from the enroute structure to the initial approach fix (IAF). |
|
FINAL APPROACH FIX OR POINT (FAP)
(ICAO) |
That fix or point of an instrument approach
procedure where the final approach segment commences. |
|
FINAL APPROACH COURSE
|
A published course, a straight line extension of a localizer, a final
approach radial/bearing, or a runway centerline all without regard to distance. |
|
FLIGHT INFORMATION REGION (FIR, UIR)
|
An
airspace of defined dimensions within which Flight Information Service and Alerting Service are provided. |
|
FINAL APPROACH (ICAO)
|
That part of an instrument
approach procedure which commences at the specified final approach fix or point, or where such a fix or point is not specified, a. at the end of the last procedure turn, base turn or inbound turn of a racetrack procedure, if specified; or b. at the point of interception of the last track specified in the approach procedure; and ends at a point in the vicinity of an aerodrome from which: 1. a landing can be made; or 2. a missed approach procedure is initiated. |
|
FINAL APPROACH FIX (FAF)
|
The fix from
which the final approach (IFR) to an airport is executed and which identifies the beginning of the final approach segment. |
|
GLIDE PATH (ICAO)
|
A descent profile determined
for vertical guidance during a final approach. |
|
GLIDE SLOPE (GS) (USA)
|
Provides vertical guidance
for aircraft during approach and landing |
|
GLIDE SLOPE / GLIDE PATH INTERCEPT ALTITUDE
|
The minimum altitude to intercept the glide
slope/path on a precision approach. |
|
GLOBAL POSITIONING SYSTEM (GPS)
|
A
space-based radio positioning, navigation, and time-transfer system. |
|
HIGH SPEED TAXIWAY / TURNOFF (HST)
|
A long
radius taxiway designed and provided with lighting or marking to define the path of an aircraft, traveling at high speed (up to 60 knots), from the runway center to a point on the center of a taxiway. |
|
HOLD / HOLDING PROCEDURE
|
A predetermined
maneuver which keeps aircraft within a specified airspace while awaiting further clearance from air traffic control. |
|
GRID MINIMUM OFFROUTE ALTITUDE (Grid
MORA) |
An altitude derived by Jeppesen or provided
by State Authorities. The Grid MORA altitude provides terrain and man-made structure clearance within the section outlined by latitude and longitude lines. MORA does not provide for navaid signal coverage or communication coverage. |
|
ILS CATEGORIES (ICAO)ILS Category I
|
ILS Category I — An ILS approach procedure
which provides for an approach to a decision height not lower than 200 feet (60m) and a visibility not less than 2400 feet (800m) or a runway visual range not less than 1800 feet (550m). |
|
ILS Category II (Special authorization required)
|
An ILS approach procedure which provides
for an approach to a decision height lower than 200 feet (60m) but not lower than 100 feet (30m) and a runway visual range not less than 1200 feet (350m). |
|
ILS Category III (Special authorization required)IIIA
|
An ILS approach procedure which
provides for approach with either a decision height lower than 100 feet (30m) or with no decision height and with a runway visual range of not less than 700 feet (200m). |
|
IIIB
|
An ILS approach procedure which
provides for approach with either a decision height lower than 50 feet (15m) or with no decision height and with a runway visual range of less than 700 feet (200m) but not less than 150 feet (50m). |
|
IIIC
|
An ILS approach procedure which
provides for approach with no decision height and no runway visual range limitations. |
|
HEIGHT ABOVE AIRPORT (HAA)
|
The height of
the Minimum Descent Altitude (MDA) above the published airport elevation. This is published in conjunction with circling minimums. |
|
HEIGHTABOVE TOUCHDOWN (HAT)
|
The height
of the Decision Height or Minimum Descent Altitude above the highest runway elevation in the touchdown |
|
ILS CATEGORIES (USA)ILS Category I
|
An ILS approach procedure
which provides for approach to a height above touchdown of not less than 200 feet and with runway visual range of not less than 1800 feet. |
|
ILS Category II
|
An ILS approach procedure
which provides for approach to a height above touchdown of not less than 100 feet and with runway visual range of not less than 1200 feet. |
|
ILS Category IIIA
|
IIIA — An ILS approach procedure which
provides for approach without a decision height minimum and with runway visual range of not less than 700 feet. |
|
IIIB
|
An ILS approach procedure which
provides for approach without a decision height minimum and with runway visual range of not less than 150 feet. |
|
IIIC
|
An ILS approach procedure which
provides for approach without a decision height minimum and without runway visual range minimum. |
|
INSTRUMENT DEPARTURE PROCEDURE (DP)
(USA) |
A preplanned instrument flight rule (IFR)
air traffic control departure procedure printed for pilot use in graphic and/or textual form. DPs provide transition from the terminal to the appropriate enroute structure. |
|
INTERNATIONAL AIRPORT (ICAO)
|
Any airport
designated by the Contracting State in whose territory it is situated as an airport of entry and departure for international air traffic, where the formalities incident to customs, immigration, public health, animal and plant quarantine and similar procedures are carried out. |
|
INTERNATIONAL CIVIL AVIATION ORGANIZATION
(ICAO) |
A specialized agency of the United
Nations whose objective is to develop the principles and techniques of international air navigation and to foster planning and development of international civil air transport. |
|
LAND AND HOLD SHORT OPERATIONS
|
Operations
which include simultaneous takeoffs and landings and/or simultaneous landings when a landing aircraft is able and is instructed by the controller to hold short of the intersecting runway / taxiway or designated hold short point. Pilots are expected to promptly inform the controller if the hold short clearance cannot be accepted. |
|
MAGNETIC VARIATION
|
The orientation of a horizontal
magnetic compass with respect to true north. Because there is a continuous small change of direction of lines of magnetic force over the surface of the earth, magnetic variation at most locations is not constant over long periods of time. |
|
MANDATORY ALTITUDE
|
An altitude depicted on
an instrument approach procedure chart requiring the aircraft to maintain altitude at the depicted value. |
|
MAXIMUM AUTHORIZED ALTITUDE (MAA)
|
A
published altitude representing the maximum usable altitude or flight level for an airspace structure or route segment. |
|
MINIMUM OBSTRUCTION CLEARANCE ALTITUDE
(MOCA) |
The lowest published altitude in
effect between radio fixes on VOR airways, off airway routes, or route segments which meets obstacle clearance requirements for the entire route segment and in the USA assures acceptable navigational signal coverage only within 22 nautical miles of a VOR. |
|
MINIMUM OFF-ROUTE ALTITUDE (MORA)
|
This
is an altitude derived by Jeppesen. The MORA provides known obstruction clearance 10 NM either side of the route centerline including a 10 NM radius beyond the radio fix reporting or mileage break defining the route segment. For terrain and man-made structure clearance refer to Grid MORA. |
|
MINIMUM RECEPTION ALTITUDE (MRA)
|
The
lowest altitude at which an intersection can be determined. |
|
MINIMUM SAFE ALTITUDE (MSA)
|
Altitude
depicted on an instrument approach chart and identified as the minimum safe altitude which provides 1000 feet of obstacle clearance within a 25 NM radius from the navigational facility upon which the MSA is predicated. If the radius limit is other than 25 NM, it is stated. This altitude is for EMERGENCY USE ONLY and does not necessarily guarantee navaid reception. When the MSA is divided into sectors, with each sector a different altitude, the altitudes in these sectors are referred to as “minimum sector altitudes”. |
|
MINIMUM SECTOR ALTITUDE (MSA)
(ICAO) |
The lowest altitude that may be
used under emergency conditions that provides a minimum clearance of 300 meters (1000 feet) above all obstacles within a sector of a circle of 46 kilometers (25 NM) centered on a navigational aid. |
|
MINIMUM CROSSING ALTITUDE (MCA)
|
The
lowest altitude at certain fixes at which an aircraft must cross when proceeding in the direction of a higher minimum enroute IFR altitude (MEA). |
|
MINIMUM DESCENT ALTITUDE/HEIGHT (MDA/H)
(ICAO) |
A specified altitude or height in a non-precision
approach or circling approach below which descent may not be made without visual reference. |
|
MINIMUM DESCENT ALTITUDE (MDA)
(USA) |
The lowest altitude, expressed in
feet above mean sea level, to which descent is authorized on final approach or during circle-to-land maneuvering in execution of a standard instrument approach procedure where no electronic glide slope is provided. |
|
MINIMUM ENROUTE IFR ALTITUDE (MEA)
|
The
lowest published altitude between radio fixes that meets obstacle clearance requirements between those fixes and in many countries assures acceptable navigational signal coverage. The MEA applies to the entire width of the airway, segment, or route between the radio fixes defining the airway, segment, or route. |
|
MINIMUM VECTORING ALTITUDE (MVA)
|
The
lowest MSL altitude at which an IFR aircraft will be vectored by a radar controller, except as otherwise authorized for radar approaches, departures and missed approaches. |
|
MISSED APPROACH
|
A maneuver conducted by a pilot when an
instrument approach cannot be completed to a landing. |
|
MISSED APPROACH POINT (MAP) (ICAO)
|
That
point in an instrument approach procedure at or before which the prescribed missed approach procedure must be initiated in order to ensure that the minimum obstacle clearance is not infringed. |
|
MISSED APPROACH POINT (MAP) (USA)
|
A
point prescribed in each instrument approach procedure at which a missed approach procedure shall be executed if the required visual reference does not exist. |
|
NON-PRECISION APPROACH PROCEDURE
|
A
standard instrument approach procedure in which no electronic glideslope is provided; e.g., VOR, TACAN, NDB, LOC, ASR, LDA, or SDF approaches. |
|
OBSTACLE CLEARANCE ALTITUDE (HEIGHT)
OCA(H) (ICAO) |
The lowest altitude (OCA), or
alternatively the lowest height above the elevation of the relevant runway threshold or above the aerodrome elevation as applicable (OCH), used in establishing compliance with the appropriate obstacle clearance criteria. |
|
PROCEDURE TURN (PT) (USA)
|
The maneuver
prescribed when it is necessary to reverse direction to establish an aircraft on the intermediate approach segment or final approach course. |
|
PROCEDURE TURN INBOUND
|
That point of
a procedure turn maneuver where course reversal has been completed and an aircraft is established inbound on the intermediate approach segment or final approach course. |
|
RUNWAY EDGE LIGHTS (USA)
|
Lights used
to outline the edges of runways during periods of darkness or restricted visibility conditions. |
|
RADAR WEATHER ECHO INTENSITY LEVELS
|
Level 1.
Level 2. Level 3. Level 4. Level 5. Level 6. WEAK MODERATE STRONG VERY STRONG INTENSE EXTREME |
|
RADIO ALTIMETER / RADAR ALTIMETER
|
Aircraft
equipment which makes use of the reflection of radio waves from the ground to determine the height of the aircraft above the surface. |
|
REDUCED VERTICAL SEPARATION MINIMUMS
(RVSM) |
A reduction in the vertical separation
between flight levels 290 – 410 from 2000 to 1000 feet. |
|
REQUIRED NAVIGATION PERFORMANCE
(RNP) |
A statement of navigation position accuracy
necessary for operation within a defined airspace. RNP is performance-based and not dependent on a specific piece of equipment. |
|
SIDESTEP MANEUVER
|
A visual maneuver
accomplished by a pilot at the completion of an instrument approach to permit a straight-in landing on a parallel runway not more than 1200 feet to either side of the runway to which the instrument approach was conducted. |
|
Initial Approach
|
The segment between the
initial approach fix and the intermediate fix or the point where the aircraft is established on the intermediate course or final course. |
|
Intermediate Approach
|
The segment
between the intermediate fix or point and the final approach fix. |
|
Final Approach
|
The segment between the
final approach fix or point and the runway, airport or missed approach point. |
|
Missed Approach
|
The segment between the
missed approach point, or point of arrival at decision height, and the missed approach fix at the prescribed altitude. |
|
SELECTIVE CALL SYSTEM (SELCAL)
|
A system
which permits the selective calling of individual aircraft over radiotelephone channels linking a ground station with the aircraft. |
|
STANDARD INSTRUMENT ARRIVAL (STAR)
(ICAO) |
A designated instrument flight rule (IFR)
arrival route linking a significant point, normally on an ATS route, with a point from which a published instrument approach procedure can be commenced. |
|
STANDARD INSTRUMENT DEPARTURE (SID)
(ICAO) |
A designated instrument flight rule (IFR)
departure route linking the aerodrome or a specified runway of the aerodrome with a specified point, normally on a designated ATS route, at which the enroute phase of a flight commences. |
|
STANDARD INSTRUMENT DEPARTURE (SID)
(USA) |
A preplanned instrument flight rule (IFR)
air traffic control departure procedure printed for pilot use in graphic and/or textual form. SIDs provide transition from the terminal to the appropriate enroute structure. |
|
STANDARD TERMINAL ARRIVAL ROUTE (STAR)
(USA) |
A preplanned instrument flight rule (IFR) air
traffic control arrival procedure published for pilot use in graphic and/or textual form. STARs provide transition from the enroute structure to an outer fix or an instrument approach fix/arrival waypoint in the terminal area. |
|
TAKE-OFFRUN AVAILABLE (TORA) (ICAO)
|
The
length of runway declared available and suitable for the ground run of an airplane taking off. |
|
TERMINAL CONTROL AREA (ICAO)
|
A control
area normally established at the confluence of ATS routes in the vicinity of one or more major aerodromes. |
|
STANDARD TERMINAL ARRIVAL ROUTE (STAR)
(USA) |
A preplanned instrument flight rule (IFR) air
traffic control arrival procedure published for pilot use in graphic and/or textual form. |
|
TAKE-OFF DISTANCE AVAILABLE (TODA)
(ICAO) |
The length of the takeoff run available
plus the length of the clearway, if provided. |
|
VISIBILITY (ICAO)
|
The ability, as determined by
atmospheric conditions and expressed in units of distance, to see and identify prominent unlighted objects by day and prominent lighted objects by night. |
|
Flight Visibility
|
The visibility forward from the
cockpit of an aircraft in flight. |
|
Ground Visibility
|
The visibility at an aerodrome
as reported by an accredited observer. |
|
Runway Visual Range (RVR)
|
The range over
which the pilot of an aircraft on the centerline of a runway can see the runway surface markings or the lights delineating the runway or identifying |
|
VISIBILITY (USA)
|
The ability, as determined by
atmospheric conditions and expressed in units of distance, to see and identify prominent unlighted objects by day and prominent lighted objects by night. |
|
THRESHOLD
|
The beginning of that portion of the
runway usable for landing. |
|
THRESHOLD CROSSING HEIGHT
|
The theoretical
height above the runway threshold at which the aircraft’s glideslope antenna would be if the aircraft maintains the trajectory established by the mean ILS glideslope or MLS glidepath. |
|
TOUCHDOWN ZONE ELEVATION (TDZE)
|
The
highest elevation in the first 3000 feet of the landing surface. |
|
TRANSITION ALTITUDE (QNH)
|
The altitude in
the vicinity of an airport at or below which the vertical position of an aircraft is controlled by reference to altitudes (MSL). |
|
TRANSITION HEIGHT (QFE)
|
The height in the
vicinity of an airport at or below which the vertical position of an aircraft is expressed in height above the airport reference datum. |
|
Runway Visual Range (RVR)
|
An instrumentally
derived value, based on standard calibrations, that represents the horizontal distance a pilot will see down the runway from the approach end |
|
VISUAL APPROACH (USA)
|
An approach conducted
on an instrument flight rules (IFR) flight plan which authorizes the pilot to proceed visually and clear of clouds to the airport. |
|
VISUAL DESCENT POINT (VDP)
|
A defined point
on the final approach course of a non-precision straight-in approach procedure from which normal descent from the MDA to the runway touchdown point may be commenced, provided the approach threshold of that runway, or approach lights, or other markings identifiable with the approach end of that runway are clearly visible to the pilot. |
|
ACARS
|
Airborne Communications
Addressing and Reporting System |
|
ARINC
|
Aeronautical Radio, Inc.
|
|
ARTCC
|
Air Route Traffic Control Center
|
|
ASDA
|
Accelerate Stop Distance Available
|
|
ADIZ
|
Air Defense Identification Zone
|
|
DECMSND
|
Decommissioned
|
|
DISPL
THRESH |
Displaced Threshold
|
|
CFIT
|
Controlled Flight Into Terrain
|
|
ETOPS
|
Extended Range Operation with
two-engine airplanes |
|
HIALS
|
High Intensity Approach Light
System |
|
HIRL
|
High Intensity Runway Edge Lights
|
|
HIWAS
|
Hazardous Inflight Weather
Advisory Service |
|
FMC
|
Flight Management Computer
|
|
FMS
|
Flight Management System
|
|
INDEFLY
|
Indefinitely
|
|
MALS
|
Medium Intensity Approach Light
System |
|
MALSF
|
Medium Intensity Approach Light
System with Sequenced Flashing Lights |
|
MALSR
|
Medium Intensity Approach Light
System with Runway Alignment Indicator Lights |
|
LAHSO
|
Land and Hold Short Operations
|
|
MIALS
|
Medium Intensity Approach Light
System |
|
LLWAS
|
Low Level Wind Shear Alert
System |
|
MIRL
|
Medium Intensity Runway Edge
Lights |
|
MNPS
|
Minimum Navigation Performance
Specifications |
|
PAPI
|
Precision Approach Path Indicator
|
|
PLASI
|
Pulsating Visual Approach Slope
Indicator |
|
OCNL
|
Occasional
|
|
RAIL
|
Runway Alignment Indicator Lights
|
|
RAIM
|
Receiver Autonomous Integrity
Monitoring |
|
REIL
|
Runway End Identifier Lights
|
|
RNP
|
Required Navigation Performance
|
|
SID
|
Standard Instrument Departure
|
|
RVR
|
Runway Visual Range
|
|
RVSM
|
Reduced Vertical Separation
Minimum |
|
STAR
|
Standard Terminal Arrival Route
(USA) |
|
SATCOM
|
Satellite voice air-ground calling
|
|
TCA
|
Terminal Control Area
|
|
TCAS
|
Traffic Alert and Collision
Avoidance System |
|
TCH
|
Threshold Crossing Height
|
|
TDZE
|
Touchdown Zone Elevation
|
|
UTA
|
Upper Control Area
|
|
UTC
|
Coordinated Universal Time
|
|
VASI
|
Visual Approach Slope Indicator
|
|
VDP
|
Visual Descent Point
|
|
VMC
|
Visual Meteorological Conditions
|
|
VNAV
|
Vertical Navigation
|
|
VOLMET
|
Meteorological Information for
Aircraft in Flight |
|
TODA
|
Take-off Distance Available
|
|
TORA
|
Take-off Run Available
|
|
TRACON
|
Terminal Radar Approach Control
|
|
Z
|
Coordinated Universal Time (UTC)
Coordinated Universal Time (UTC) |
|
U
|
Unspecified
|
|
UNCT’L
|
Uncontrolled
|