Flytec 4030 * - Manual (Page 23)

Flytec
MacCready nominal flight display
The single bar in the upper part of the analog display represents the anticipated ascent in the
next thermal. If a greater ascent is anticipated, you must fly faster; if a lower ascent is antici-
pated, you must fly slower.
The benefit of this type of display when compared with MacCready rings is that you do not
have to touch the instrument during flight - changing your flight speed is sufficient.
Two arrows appear when the current actual glide ratio is displayed.
MacCready:
Anticipated ascent in the next thermal.
Vario and Vario integrator:
Is displayed in accordance with the VARIO OPTION mode.
Actual glide ratio:
Current glide ratio of the craft (computed with ground speed).
MacCready nominal flight instrument setting
GPS function on/off:
If the GPS function is set at off, all the instrument’s GPS functions are switched off
(q.v. ALT 2 OPTION MODE).
Polars: 4 polars can be saved in the instrument. The active polar is always the one that
was displayed on the flight instrument before leaving SINK OPTION mode and not
the one that was last loaded from the PC into the flight instrument.
It is better to
enter the polar data with a PC as the supporting values of the polars can be
determined from saved calibration flights. The polar data can also be edited in the
flight instrument.
(q.v. SINK OPTION MODE).
Operating Instructions FLYTEC 4030 22
m/s
Ac tual glide ratio Vario Integrator
Mac Cready
Vario
16 sec onds 4 sec onds
0
1
2
3
4
-1
-2
-3
-4
0
1
2
3
4
-1
-2
-3
-4
0
1
2
3
4
-1
-2
-3
-4
Mac Cready > 4 m/s
Mac Cready < 0 m/s
Picture 1
Descent phase