Operation Manual Part 1

Aerosoft – Digital Aviation
CRJ-700 CRJ-900
AOM PART 1
AIRCRAFT GENERAL / IN FSX
VOL
1
1-1-48
1 August 2017
APPENDIX 4: SPEED CONTROL AND AUTO THROTTLE
During the testing phase, it was obvious many people had issues with the way speed is controlled in the CRJ
and how to activate the Auto Throttle. To start with the latter, there is none. Don’t let the SPEED button on
the glare shield fool you. We’ll explain the functionality later.
THROTTLES
On the throttle, you will see several markings
1. SHUT OFF (FUEL SHUT-OFF)
To move the throttle from IDLE to SHUT OFF, lift the
red lever and retard the throttle. The Idle / Shutoff
Release latches (7) are there to prevent you from
shutting down the engines in flight.
2. IDLE (TRUST SETTING)
The range between IDLE and CLIMB is the throttle
range you will normally use.
3. CLIMB (THRUST SETTING)
The Climb thrust setting is the highest possible
continuous thrust setting allowed (though ITT
limitations do still apply).
4. TOGA (TAKE-OFF AND GO-AROUND THRUST SETTING)
The TOGA setting is used for most take-offs and for go-
arounds. TOGA can only be used for 10 minutes
continuously.
5. MAX POWER
The MAX POWER setting is only used when maximum power output is needed.
The Take-Off / Go-Around Switches (6) will activate the take-off / go-around mode of the flight director.
The Thrust Reverse Levers (8) are pulled up (with throttle in idle) to deploy the thrust reversers. At minimum
thrust reverse range there is little or no reverse thrust but all forward trust is removed, at higher settings
actual reverse thrust is generated.
GLARESHIELD SPEED CONTROLS
On the glare shield, there is a SPEED button and a SPEED rotary control. This is what
confuses many people. The Speed Mode System is only active during climb and
descend. It does NOT control the thrust output of the engines but adapts the pitch of
the aircraft to maintain the set speed.
1. The SPEED button is pressed to set and select the three modes:
a. CLB (Climb) / DES (Descend)
When selected, the current speed is used as the speed to maintain
and the CLB or DES mode is selected automatically depending on
the Vertical Speed.
In CLB mode the aircraft will never descend, in DES mode it will
never climb.
b. IAS (Indicated Air Speed)
When selected the current IAS/MACH is hold, no matter if descent or climb is required.
2. The button on the rotary Speed control toggles between IAS and MACH.
3. The rotary control is used to change the set speed after a mode is selected.