Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-63
26-Jul-2017
ALTITUDE ALERTS
The altitude alerts notifies the crew that preselected altitudes are going to be captured or a deviation from a
preselected altitude occurs.
Three types of altitude alerts may occur:
• Acquisition mode
• Cross side tracking
• Deviation mode
Mode
Short Description
Aural warning
Visual warning
How to cancel
Acquisition mode
Present altitude is
within ±1,000ft or
preselected altitude.
C-chord
Preselected altitude
flashes.
Flashing stops when ±200ft
within preselected altitude
Press altitude
knob on flight
control panel
Cross side tracking
In case a difference
between the
preselected altitudes
from ADC 1 and 2 is
detected
None
Altitude digits change from
magenta to cyan
NIL
Deviation mode
Altitude deviates
more than ±200ft
from preselected
altitude.
OR
Altitude capture is
active and aircraft
deviates from
preselected altitude
by more than ±100ft
C-Chord
Preselected altitude and
bug change from magenta
to amber and start
flashing.
LOW SPEED CUE
The low speed cure displays the speed margin to stick shaker during normal low speed manoeuvers and
approaches to stall. The top of the low speed cue corresponds to stick shaker speed.
AIR DATA REVERSION
During normal operation, each air data computer supplies one pilot’s side with data. In case one air data
computer fails or provides unreliable data, the pilots may switch to the remaining air data computer, which
supplies both pilots’ instruments then.
As failure of an air data computer is not simulated, this function has no relevance in FS even though switching
the selector and the respective message is implemented.