1 flight functions, 1 analogue vario, 2 altimeter and air pressure – Flytec 5030 v2.24 * User Manual
Page 6: Flight functions, Analogue vario, Altimeter and air pressure, Flytec

Flytec
5030 GPS
1 Flight
Functions
1.1 Analogue Vario
The most important instrument for any kind of glider is,
without a doubt, the vario. It displays the vertical speed
in metres/sec. (ft/min) and informs the pilot whether
he/she is climbing or sinking. It is only by using the vario
(and its accompanying acoustics) that a pilot can
discover the most efficient climb, and in the opposite
situation, to recognize when they are sinking too rapidly
in descending air which must be avoided.
0
Bat.
3.57V
12h
4
3
2
1
m/s
1
2
3
4
70
60
50
40
30
m
+
0
Bat.
3.57V
12h
8
7
6
5
m/s
5
6
7
8
70
60
50
40
30
m
INT
The scale of the analogue display is 0.2 m/s (or 40
ft/min).
The first full-scale range is from 0to+/-4m/s (800 ft/m),
after which the display switches automatically to a range
from 4 to 8 m/s (800 to 1600 ft/m). The time delay of the
analogue vario is factory set at 1.2 seconds. This can be
changed to any value between 0.6 sec and 4 sec,in the
Set Mode/Basic-Settings/Vario-Speed response delay. If
the time delay is too short, the vario is very twitchy; if too
long, it's rather sluggish.
1.2 Altimeter and Air Pressure
The Flytec 5030 GPS has 4 altitude displays.
Alt1 is always the absolute altitude altimeter above sea level (QNH).
Alt2 in the user selectable fields is a relative reference height altimeter and can be changed
with the arrow keys
. The Next Func/F1 must be set to Mod A2, to perform this setting;
Alt2 can be zeroed at any time by prolonged pressing on F2/Clr A2.
Alt3 Shows the total height gained during a flight. With thermal flights this is dependent
on the flight time. If several pilots complete exactly same flight task, then the one who
climbed the least would have flown most efficiently.
Alt2 and Alt3 are among the user selectable fields
As well there is another altimeter called “Flight-Level” FL (ft) ; It cannot be adjusted by the
user and is based on an air pressure of 1013 hPa at mean sea level.
Altimeter Alt1 should be adjusted to display the correct height above sea level. It is originally
set by the manufacturer to a sea level pressure of 1013hPa. Since this is seldom the case,
the correct altitude should be set before commencing each flight by using the arrow keys,
increases altitude,
decreases altitude. The Info line is telling Mod Alt1
By means of
this adjustment the air pressure display changes too. This air pressure (QNH) always refers
to sea level.
During flight recording Alt1 adjusting is blocked.
The user can obtain the altitude of a location even if this is unknown by setting the sea level
air pressure (QNH) (rec. from the radio) in the set up menu. Or he/she can press the F2
key. If the unit receives satellites the GPS altitude is taken over to Alt1. If there is no
Satellite reception the 1013 hPa altitude will be used. (Same as FL (ft))
A2, A3, FL (ft) and QNH can be displayed within the user selectable fields. (See A7 )
If Alt2 is set to zero for any planned landing area, then the height above this location will
always be indicated after starting. The associated air pressure (QFE) is the actual air
pressure in hPa at this spot, which deviates from QNH, the pressure at sea level, according
to the difference in altitude.
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