C5108588N00756023ETSKSTART Task Start
C5208588N00756023TP001 Turnpoint 1
C5208588N00856023TP007 Turnpoint x
C5100000N00818416ESCHAMEDE Task finish
C5100000N00818416ESCHAMEDE Landing
LFILORIGIN0924405108590N00756026E
B0924405108590N00756026EA0021500375 'B' records show time, position, pressure and
B0924525108589N00756026EA0021500369 GPS altitudes, as well as optional records such as
B0925045108590N00756026EA0021400379 ENL (Engine Noise Level)
B0925165108590N00756026EA0021500371
B0927045108590N00756024EA0021400371999
G1FFFFA7E810EA2A83B88847A3825C8331FEC65DF5 'G' record (file integrity)
The B record contains following data:
• UTC time (hh,mm,ss)
• The GPS Coordinates (dd,mm.mmm) terminating with N(S) or E (W).
• The GPS status, an ‘A’ indicates a good fix while a ‘V’ indicates a bad fix
• GPS altitude (00371)in meters
• Pressure altitude (00214)in meters
• The example shows engine noise level (ENL) as the last 3 numbers; this record is set as required by the
pilot and is not obligatory for pure gliders.
The G record is always the last record and is used exclusively for data security purpose. Flights without a valid
G record will fail security and are not acceptable for FAI/IGC purposes.
The .LXN file type is binary and cannot be opened using a text editor. When using LXe or ConnectLX, the
binary .LXN file will automatically be converted into an .IGC file.
IGC requires that some additionally programs are made available for flight recorder downloading and flight
evaluation. These programs are mostly used by third party competition analysis software. These additional
programs are available on http://www.fai.org/gliding/gnss and are also included on the CD supplied with every
Colibri.
• IGC-LXN.DLL A Windows program running in conjunction with IGC-Shell
• DATA-LXN.EXE A DOS program for flight downloading
• CONV-LXN.EXE A DOS program which converts an .LXN file into an .IGC version
• VALI-LXN.EXE A DOS program which checks the data integrity of the .IGC file
However, LX Navigation strongly recommend that only LXe, See You or ConnectLX are used to download
flight records from the Colibri.
1.2 Hardware configuration
The Colibri flight recorder contains the following sub-modules:
• A GPS receiver with antenna
• A microprocessor with volatile memory that is backed up with a 3.0V Lithium cell. The memory
battery life is expected to be at least five years, and it is recommended that the battery is replaced after
this period. Battery replacement can only be carried out by an authorized LX service station as the unit
will require resealing after the battery replacement.
• A pressure sensor which measures pressure altitude based on the International Standard Atmosphere,
1013.2 HPa
• A physical and digital secure device. The unit is sealed with both a physical seal placed over one of
the case securing screws, and an electronic seal that is broken if the case is removed. If a non
authorized person opens the unit, then both the physical and electronic seals will be broken and the
message SEAL NOT VALID will appear after power on. While the unit is fully operable in this
condition, any flight record downloaded will be not be secure and is not acceptable for FAI/IGC
purposes. Only an authorized LX Navigation service station can restore the seals.
• An engine noise level (ENL) sensor for the detection of engine noise in self launched and self sustainer
gliders. The ENL is enabled as a factory option in all units.
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