ATA 22 - AUTOFLIGHT Flashcards
How many axis is the stabilization system?
3-axis
How many axis is the autopilot system?
4-axis
How many SEMA units are there?
7
How many SEMA’s does the collective have?
1
During normal operation, what mode is the stabilization system in?
AUTO TRIM
If the auto trim system is deactivated, what controls the SEMA’s?
the Digital SAS (DSAS)
Whilst in autoflight, how many AMC’s are controlling the SEMA’s and trim actuators?
The leading AMC, the second stays in hot standby incase of a failure.
How is the IESI used by the autoflight system?
It provides addidtional sesnor information during normal flight.
If both AMC’s fail, what provides backup SAS?
the IESI
In backup SAS mode, how many SEMAS are used?
only one of each duplex SEMA
Is the collective SEMA used during backup SAS?
No.
Which AP is in command in normal conditions?
AP2
How many SEMAs does the DSAS use in each axis?
It uses both SEMA’s of the axis
AFCS Upper Mode gives full athority of which SEMAs?
all 7 SEMAs
AFCS Upper Mode requires what flight control input from the pilots?
None - they can fly hands-off
What is the APCP?
Auto Pilot Control Panel
Where is the APCP located?
on the centre consol
If the AP UM OFF button is pushed, what happens?
all upper modes are disengaged.
Centering of the cyclic stick and pedals on the ground is done how?
turning on the AFCS and holding the AP UM OFF button for more than 1 second
How many trim actuators are installed?
4
Which plane is the FWD cyclic trim actuator for?
longitudinal
During manual flight, how many SEMAs are used for SAS?
- The collective isn’t used.
When would the warning AUTOPILOT illuminate?
total loss of AP1 & AP2
Cyan coloured components of the AFCS shown on the MFD are of what state?
Standby
OEI
