Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-115
26-Jul-2017
THRUST CONTROL
CRJ’s thrust is controlled by two thrust levers, installed on the center pedestal.
The CRJ has no auto thrust. The FADEC, which is described in more detail in the following chapter, and throttle
detents assist the pilots during take-off, climb, descent as well as go-around by automatically setting calculated
thrust settings. Nevertheless, during cruise thrust needs to be set manually.
Each lever has 6 possible settings:
1. Fuel shut off
By lifting the idle / shutoff release latch and pulling the thrust levers full backwards afterwards, the
fuel shutoff valve is closed for the respective engine.
To open the fuel shutoff valve, lift the idle / shutoff release latch and advance the thrust lever to the
idle detent.
To lift the idle / shutoff release latch in FS, move the mouse pointer over the latch and press the right
mouse button.
2. Idle thrust setting
Idle thrust is computed automatically and pulling the thrust lever fully back to the idle position. You
may also press “F1” in FS to select idle thrust.
3. Cruise Range
The range between idle thrust setting and climb thrust setting is called cruise range. The pilots may
use the entire range between idle and climb thrust setting to adjust for a proper cruise speed.
4. Climb Thrust Setting
The climb thrust setting is a detent, which you’d experience as a mechanical stop in the real aircraft.
When setting the thrust levers to the climb detent, climb thrust is computed automatically by the
FADEC. Use this setting during climb phase.
5. Take-off and go-around thrust setting
Setting the thrust levers to take-off and go-around setting makes the FADEC compute and command
the required thrust setting for take-off or go-around.
This setting may also be commanded by pushing the TO/GA switch on the throttle lever itself
6. APR thrust setting
The CRJ provides an Automatic Power Reserve in case one engine fails to ensure sufficient thrust for
go-around or take-off. Please see the respective section in this chapter for further details.
In case you are using a throttle quadrant, make sure that the throttle axis is calibrated properly.