What is the difference between Normal Mode and Direct Mode?
Direct mode bypasses FCM and no high level functions available
Will the speed brakes/ground spoilers function in Direct Mode?
No
The flight modes available on the aircraft include:
Normal and Direct
The roll control system includes:
Ailerons and multi function spoilers
When the elevator control system is in Direct Mode, the autopilot is unavailable.
“True”
The green band on the PITCH scale represents:
Allowable takeoff trim pitch
What are higher-level functions for the rudder?
Gain on airspeed; yaw dampener; turn coordination
Will the multifunction spoilers function in Direct Mode?
Yes - only for roll at default gain
What is the priority for the trim system?
Backup, Captain; FO; FCM
The trim system is protected from a runaway by ___________.
3 second timer
What is the only primary flight control that is not FBW (Fly-By-Wire)?
Aileron
What do you lose when you go into Direct Mode?
Higher level functions for the associated flight control
What are examples of ELEVATOR higher-level functions?
AOA limiting; elevator thrust compensation; gain on airspeed
How does the Fly-By-Wire system work?
FCM connects to ACE, which provides input to ACE combined with pilot inputs
In general terms, what is Direct Mode?
FCM is bypassed and there are no higher level functions available
There are 3 FLIGHT CONTROLS MODE guarded buttons. What happens when any one of the buttons is pushed?
Associated control either goes into direct mode or into normal mode
Will the loss of airspeed data cause the flight controls to go into Direct Mode?
Yes
Can the pilot select direct Mode? If so, how?
Yes, by pushing the direct mode button in
Is Angle of Attack Limiting available in Direct Mode?
No
What is the purpose of the pitch trim switch?
To trim pitch when autopilot is off
What happens when you select only half of either Pitch Trim switch on the control wheel or control pedestal for more than 5 seconds?
Switch is deactivated amd EICAS pitch trim switch error appears
What will happen if using the backup pitch trim switch while the autopilot is engaged?
Autopilot disengages
What happens if the yaw or roll trim switches are held in position for more than 3 seconds?
Trim movement stops
Which flight controls use electrical power instead of hydraulic power for actuation?
Flaps; slats; stabilizer