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fgdata/Navaids/ReadMeFG.txt
2000-10-22 21:05:31 +00:00

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Document updated March 18 1999
==============================
Change log:
-----------
Mar 18 1999 version 1.22:
-New codes for runway markings
-Runway surface codes changed
Mar 17 1999:
-Runway Stopways added
-Displaced runway thresholds added
-Approach light codes changed
General
-------
This document describes the new prototype data files for X-Plane. The files are:
default.apt (airports and runways)
default.nav (VORs, NDBs and DME)
default.ils (ILS)
default.fix (IFR intersections)
The data in the example files is _not_ limited to 15 per lat lon square - the files are still similar in size to the existing ones, despite much new data.
Contact me with any questions at robin@cpwd.com.
Contents of each file are:
========
Airports
========
AptType
AptCode
AptLat
AptLon
AptElev
AptUse (Civil/military)
AptTwr
AptBdg (Y=Use X-Plane default buildings)
AptName
Runways
=======
RwyType
RwyNo
RwyLat
RwyLon
RwyHdg (note new precision)
RwyLen
RwyWidth
RwySfc
RwyMrk
RwyEdgeLx
RwyCLLx
RwyGuard (aka wig wags)
RwyTDZLxA (First runway end - A ...)
RwyREILA
RwyGSIndA
RwyAppLxA
RwyDispThrA
RwyStopwayA
RwyTDZLxB (First runway end - B ...)
RwyREILB
RwyGSIndB
RwyAppLxB
RwyDispThrB
RwyStopwayB
Fields are in two different types of rows. The airport data is categorised by AptType as:
A = Airport
S = Seaplane base (note - these should have different airport beacon colours - see AIM).
Apt Use is C (Civil), M (Military).
Runways are identified by a leading R as RwyType (and H may be used later for Helipads). There are no runways for Seaplane Bases (though if you want to display bobbing bouys in the waves I can create such data).
Note that the total runway length includes displaced thresholds but excludes stopways.
RwySfc codes:
-------------
X-Plane Master database detail
------- ----------------------
A Asphalt
A Treated
C Concrete
D Dirt
D Sand
G Coral
G Gravel
M Mat
T Turf/Grass
W Water (for those future seaplane base runways...)
X [Unknown]
X Aluminium
X Brick
X Metal
X Neoprene
X Wood
RwyMrk codes (runway markings)
------------
N None
V Visual
R Non-precision
P Precision
B Buoys (water runways?)
RwyEdgeLx codes:
----------------
H High
L Low
M Medium
N [None]
M Non-std
RwyGSInd codes:
---------------
V VASI
P PAPI
N None
RwyAppLx codes:
---------------
X-Plane Abbrev AppLxName
------- ------ ---------
N [None] No system
N [NSTD] Non-standard
A ALS Approach light system (assumed white lights)
B ALSF-I Approach light system with sequenced flashing lights (Rabbit)
C ALSF-II Approach light system with sequenced flashing lights (Rabbit) and red side bar lights the last 1000'
L LDIN Sequenced flashing lead-in lights (Rabbit) only
M MALS Medium intensity approach light system
N MALSF Medium intensity approach light system with sequenced flashing lights (Rabbit)
O MALSR Medium intensity approach light system with runway alignment indicator lights (RAIL)
P MILOVRN Something military, I suppose
N NSTD Non standard
Q ODALS Omni-directional approach light system
R RAIL Runway alignment indicator lights (icw other systems) (RAIL)
S SALS Short approach light system
T SALSF Short approach light system with sequenced flashing lights (Rabbit)
U SSALF Simplified short approach light system with sequenced flashing lights (Rabbit)
V SSALR Simplified short approach light system with runway alignment indicator lights (RAIL)
W SSALS Simplified short approach light system
D CAL Calvert (British) - a jolly good system
E CAL-II Calvert (British) - Cat II and II
========
Nav Aids
========
ExptDataCode
------------
NavType
NavLat
NavLon
NavElev
NavFreq
NavRange (in NM)
NavDME (indicates if co-located DME)
NavIdent
NavName
NavType codes:
--------------
X-Plane Master database detail
------- ----------------------
N Marine NDB
N NDB
D TACAN (only DME part needed)
V VOR
V VORTAC
D DME
N LOM
===
ILS
===
ExptDataCode
------------
ILSType
ILSTypeName
ILSAptCode
ILSRwyNo
LocFreq
LocIdent
LocHdg (note new precision)
LocLat
LocLon
GSElev
GSAngle
GSLat
GSLon
DMELat
DMELon
OMLat
OMLon
MMLat
MMLon
IMLat
IMLon
Codes for ILS type:
-------------------
I ILS Instrument Landing System
M MLS Microwave Landing System
D LDA Localiser Directional Aid
I LOCGS Localiser - Glideslope
L LOC Localiser
S SDF Simplified Directional Facility
I IGS Instrument Guidance System
=====
Fixes
=====
FixName
FixLat
FixLon
Easy - few changes here.