Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-18
26-Jul-2017
FLIGHT MODE ANNUNCIATOR – VERTICAL MODES
Mode
Commanded attitude
Annunciation
Select
Cancel
Vertical
Take-off
mode
Generates a fixed pitch-up
command (pitch angle depends
on take-off speed and difference
between V2 and VR – loss of an
engine reduces commanded
pitch)
clears all other modes, turns on
both flight directors and turns
off the autopilot
Green TO
message
Press of TOGA
button on thrust
lever
Press TOGA switch
again
Engage autopilot
Select
synchronization
Select another
active mode
Pitch
mode
Command to maintain pitch
angle at activation.
Reference value may be altered
using the VS pitch wheel (1/2-
degree change per click).
When preselecting an altitude –
altitude preselect mode must be
activated before activating pitch
mode
Green PTCH
message
Pitch mode is
automatically
selected when
the flight
director is
activated.
Rotating the VS
pitch wheel also
activates the
pitch mode
(unless in
glideslope
capture or VS
mode)
Selecting a vertical
hold mode
Selecting a vertical
mode capture
Altitude
Hold
mode
Generates commands to
capture and hold selected
altitude.
When the mode is selected, it
sets the current altitude as
reference.
Green ALT
message
Press ALT switch
Press ALT switch
again
Selecting a vertical
hold mode
Vertical mode
capture
Altitude
preselect
mode
Generates commands to
capture and maintain a
preselected altitude. The
preselected value is displayed
on the PFD.
The capture point depends on
the closure rate.
In case the altitude is reselected
during altitude capture (within
200ft of the preselected
altitude), the flight director will
ignore the new setting and
capture the preselected
altitude.
As soon as altitude is captured,
the flight director switches to
altitude hold mode.
Annunciated
by white ALTS
message.
Alt capture is
indicated by
green ALT CAP
message.
It is
automatically
selected as soon
as any vertical
mode (except
glideslope
capture) is
activated.
Cleared by
glideslope capture
or altitude capture
and switching to
altitude hold mode.
Speed
mode
(CLB, DES,
IAS)
Commands pitch in order to
capture and maintain and
preselected airspeed.
Speed is selected by turning the
speed knob.
IAS CLB or IAS
DES
Push the SPEED
knob
Selecting another
vertical capture
mode
Deactivate autopilot
and flight director.