Flytec 4030 * - Manual (Page 25)

Flytec
the following- and head-wind components, the flight instrument will then switch over from A)
to B) and the lower part of the analog bar display will appear black (final approach possible).
The last thermal integrator (the average ascent of the thermal) is shown in the upper part of
the analog display and is slowly deleted from the bottom to the top until the right flight moment
is reached. The entire lower part of the analog display then begins to flash. This is the moment
of transition to the final approach.
During the final approach, you must fly in such a way that the MacCready display in the ana-
log display matches the last thermal integrator in the last thermal.
In addition, the plus / minus target altitude is displayed in ALT 2 as a check. If the pilot flies
faster, it is reduced.
The “A” that is displayed stands for “Approach”. If he flies more slowly, it
increases. If it becomes negative, the destination can no longer be reached at the current actual
glide ratio.
Nominal glide ratio:
The glide ratio which must be attained to fly directly to your destination from your current
position.
Target minus / plus altitude:
The altitude at which you will fly below or above your destination if you maintain your current
glide ratio.
Last thermal integrator:
Ascent calculated over a longer period for the precise determination of the optimum point in
time for your final approach.
MacCready:
Anticipated ascent in the next thermal.
Operating Instructions FLYTEC 4030 24
MacCready
Vario
4 seconds
ALT 2
m
Target minus /
Plus alzitude
larger
nom inalglide
actualglide ratio
0
1
2
3
4
-1
-2
-3
-4
m/s
ALT 2
m
Vario integrator
8 seconds
0
1
2
3
4
-1
-2
-3
-4
actualglide ratio
Picture 4
Descent phase: