Airplane Factory SLING 4
Pilot Operating Handbook
Page | 7-22
DC-POH-001-X-C-3
Revision : 1.3
From a battery back-up circuit, via a selection switch (labeled
EFIS BKUP) mounted on the instrument panel. Refer to paragraphs
7.19.2 and 7.19.3.
Operational use of the EFIS and EFIS back-up battery system
Use and set-up of the EFIS features are extensively described in the
documentation supplied with the unit and will not be dealt with in this
handbook. Refer to the supplied EFIS documentation.
Autopilot functionality is incorporate in the EFIS. Refer to paragraph 7.24
for additional information.
The EFIS is operated during flight with the EFIS back-up battery selection
switch on at all times. This will ensure automatic switch-over of the EFIS to
the EFIS back-up battery in the event that power is lost to the main bus.
In the event of a charge system failure:
Switch the EFIS main switch off. This will allows the EFIS to switch
over to (and be powered from) the EFIS back-up battery supply
(provided that the EFIS battery back-up switch is on and the EFIS
back-up battery contains adequate charge). Leaving the EFIS main
switch on will cause the EFIS to be powered from the main bus,
contributing (unnecessarily) to the discharge of the main battery.
Set the EFIS screen brightness to the minimum acceptable for
readability (to reduce current drain on the back-up battery).
WARNING
Users should refrain from entering the EFIS set-up pages during flight, as
changes to the set-up may result in incorrect readings and/or warnings
resulting in safety degradation.
Содержание SLING 4
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