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DRAFT - Definitions subject to change
Aircraft labels are defined separately from the colours and symbols used by labels & tracks. The contents and layout of the label may be customised.
Every FIR can specify an unlimited number of label formats. Label formats are defined by the label directory name located in fir/labels/(format_name)
Each named format directory groups the following files:
A number of different aircraft states exist, all of which can have a distinct label format:
Airborne labels
The default label is the unconcerned
state. This label must be defined as a minimum.
All further states are optional and only need to be defined if the label layout for the state differs from the unconcerned
state. Note that the colours of a track/label state completely are independent.
Ground label
Two defaults are required: Ground ARR
and Ground DEP
. Further states are optional and follow the logic of the airborne labels.
A huge variety of usable fields exist which can be customised to suit the desired visual presentation. Some fields also allow the selection of the unit used such as Meters/Feet or Knots/KmH
All fields may be shortened e.g. 23 instead of 230
or NIN instead of NINTU
. A prefix may also be assigned e.g. G435
.
Fields may also be hidden unless the track is selected.
Field ID | Description | Unit |
---|---|---|
CALLSIGN | Aircraft Callsign | |
TSSR | Transmitted Mode A code | |
ASSR | Assigned Mode A code | |
CID | ||
ATYP | Aircraft Type | |
WTC | Weight Turbulence Category | |
AI | ||
AFL | Actual level (Mode C readout) | Meters / Feet |
CFL | Cleared level | Meters / Feet |
RFL | Requested level from flight plan | |
RCD | Rate of climb / descent in ft/min | |
CWP | Cleared waypoint / heading | |
NCOP | Sector entry cleared waypoint | |
PEL | Sector entry level | Meters / Feet / All |
XCOP | Sector exit cleared waypoint | |
XFL | Sector exit level | Meters / Feet / All |
NEXT | Next sector | |
GS | Ground speed (radar calculated) | |
ASP | ||
IAS | Indicated Airspeed (downlinked) | |
HDG | Heading (downlinked) | |
SFL | Selected level (downlinked) | |
ADEP | Departure AD | |
DRWY | Departure RWY | |
ADES | Arrival AD | |
ARWY | Arrival RWY | |
STAND | Arrival Stand | |
STATE | ||
TEXT | Free Text field | |
ACID | ||
NMS | ||
ALERT | Alert state e.g. EMER, COMAIL | |
DUPE | Duplicate code alert | |
SAFE | ||
RT | ||
SPACE | Blank Space |