Super 80 Professional – AOM
FLIGHT MANAGEMENT
Section 15 Page 6
Super 80 Professional – Aircraft Operating Manual
Coolsky, 2018
IRS MODE SELECT PANEL
1. IRS MODE SELECT SWITCH (1 and 2)
OFF
IRS is off and not producing any
navigation or attitude data.
ALIGN Initiates the IRS alignment process.
Navigation and attitude data will
not be available with the switch in
this position even after completion
of alignment. The aircraft must be
stationary during the whole
alignment process (about 10
minutes). The ALIGN light will start
flashing if there is a problem with
the alignment process. To
complete the alignment process, a
reference position must be entered
into the FMS (POS INIT REF page).
NAV
This is the normal in-flight switch
position. When IRS alignment is
complete, navigation and attitude
data will be available.
ATT
Only attitude data is available.
Note: When the switch is set to the
ATT position in flight, navigational
data will not be available for the
remainder of the flight. The IRS must
be realigned to supply navigation
data again.
2. IRS ANNUNCIATOR LIGHTS (4 L & R)
ALIGN
IRS alignment in progress.
ON BAT
IRS unit operating on battery
power only. During normal
operation the IRS will drain the
battery in about 30 minutes if left
on battery power only. On initial
startup, the ON BAT will come on
for 21 seconds before switching
to the ALIGN light.
BAT FAIL Battery power not available as a
power source.
FAULT
Alignment process failed. This will
happen if the aircraft is moved
during the alignment process.