AIRBORNE EQUIPMENT for Sale
(click on the pictures to enlarge them)
Survey navigation is provided by a LiNav-3D system from Ag-Nav Inc.
The system consists of an integrated computer/monitor/keypad and a
colour LED digital pilot display (array of 28 by 30 lines) that
shows horizontal cross-track and vertical elevation simultaneously
along with other pertinent navigation information. The primary GPS
receiver provides the system with real-time corrected horizontal and
vertical positional information for precise guidance along the
pre-programmed survey flight grid. For 3D drape flying an elevation
grid is input which has been calculated from a digital elevation
model (DEM) and the aircraft climb characteristics. Vertical input
to the system can be GPS altitude or radar altimeter.
The radar altimeter is a FreeFlight TRA-3000 coupled with a TRI-40 digital indicator. The altimeter
has a range of 40 to 2500 feet
and an accuracy of 5%. Output is analogue.
Digital Video Flight Track System:
A Stack DVR3-130 digital video & data recorder with input from a colour video camera
mounted in the belly of the aircraft is used to record the ground
track of the survey aircraft. The DVR3 is a compact solid-state video recorder
with data input from the primary GPS receiver. The date, GPS time in
seconds, latitude and longitude position are overlain on the video
image on the top left side of the video frame. The video files are recorded
as mpeg-2 compressed files with a separate file per survey flight line.
The spectrometer equipment consists of a PicoEnvirotec GRS-10 external
concentrator with two of 2-pack crystal boxes. Each of the two crystals in
each pack being 256 cubic inches for a total of 1024 cu. in. or 16.7 litres.
The concentrator outputs the full 256 channel spectrum for each of the
VLF Electromagnetic Receiver:
The VLF-EM receiver is the industry standard TOTEM-2A manufactured
under contract by RMS Instruments Ltd. The TOTEM-2A has three
orthogonally mounted coils which measure the total field strength
and the vertical quadrature component of the magnetic VLF field.
Airborne VLF EM data are mainly used for geological mapping,
interpretation of large scale geological features, such as faults
and shears, and locating graphite and base metal conductors.
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