distance to the start will become highlighted when the pilot is in an irregular position, i.e. inside a start
cylinder where he should be out or vice-versa.
Thermal Core Map
Another useful feature of the Navigation Circle Element is the thermal core map. This map corresponds to
a black dot which is shown inside the inner navigation wheel (together with the navigation arrows).During
a thermal climb the LIVE SD keeps track of the strongest climb values point for each 50m layer. The
point of strongest lift is then graphically represented by the black ball in the inner Navigation Circle,
showing where the thermal core is relative to the pilot's position. The position of the dot (thermal core)
is constantly updated as the pilot moves. When the pilot is over 300m from the thermal core the dot will
be at the edge of the circle. As the pilot moves closer to the thermal core the dot will move towards the
center.
Figure 3.8: Thermap Core Map
In Figure
3.8
the thermal core is currently behind the pilot at a distance of approximately 150 meters
(half of 300 m wheel radius).
Wind Flag
The external circle contains a small ag which indicates the Wind Direction relative to the pilot direction
(direction the wind is coming from). For example, if the pilot is facing the wind then the ag is on the
top of the circle. In the example of (Figure
3.5
) the wind is blowing from Northeast.
3.1.7 Airspaces Map
The Airspaces Map element provides information to the user relative to specic three-dimensional objects,
previously loaded to the instrument. Each of this objects can be an airspace volume. Airspace information
can loaded to the instrument using the Flymaster Designer software (see Designer user manual for more
information). The LIVE SD only accepts data in the OpenAir format, and it has a limitation of 12000
polygons points. (See
http://www.gdal.org/ogr/drv_openair.html
for more information about the
open air format).
Figure 3.9: Airspace Element
When the element of Figure
3.9
is inserted in a layout using DESIGNER, a 2D map (box) is shown on
the instrument (see Figure
3.10
). On the bottom left of the map the scale is indicated in Km, and on the
centre of the map is an arrow. This arrow represents the pilot position, and its orientation indicates the
bearing of the movement. The map is always oriented North Up.
Note: When new Airspaces data is uploaded to the LIVE SD using DESIGNER the previews
data is deleted. If a empty Airspaces data le is uploaded then all the Airspaces will be deleted.
13
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