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BARX).
The vertical scale (y), vario (in m/s) can also be adjusted, go to (MAIN SETUP \ n. 7
FS_V).
6.3
AIR EFFICIENCY (GLIDE RATIO)
To utilize the air efficiency functions you must have an air
speed probe connected. The optional air speed probe should
be plugged in to the right hand socket on the bottom of the vario.
The air efficiency indicates the current efficiency (glide ratio) related to the air.
If your Air speed drops lower than 5km/h, the display is blank.
To adjust the time over which efficiency is averaged, go to (ADV. SETUP \ n. 4 EFF).
To show “instant Air Efficiency” information in any of these customizable fields, press
the
,
keys to highlight & select the data field you wish to adjust.
As you scroll up or down, the fields that you can customize are highlighted (inverted)
and a description of the data currently being shown is that field is shown for approx 3
seconds.
To change the data you wish to display, press the
,
keys. Each time the data field
is changed, the field briefly shows a description of the data type currently selected.
6.4
POLAR DATA
To utilize the polar data functions, you must
have an air speed probe connected. The
optional air speed probe should be plugged in
to the right hand socket on the bottom of the
vario.
A polar curve (shown in bold on the figure) is a graph of your glider’s sink rate over its
speed range.
The glider’s stall speed is shown by at point S and the glider’s max speed at point T on
the graph.
On the graph, you can also see three pairs of relative speed readings and sink rates. At
point A, you can see that the lowest sink rate achieved is at the top of the curve.
