Auto Flight Control System Flashcards
How many flight directors are there?
How many are active normally?
2
1
During takeoff, approach, and go around what happens with the flight directors?
They both work independently
What is the primary method of interpreting the auto flight control system?
FMA (Flight mode annunciator)
How do you verify the autopilot is engaged?
PFD says AP in top left corner.
What is the difference between IAS and CLB/DES speed sub modes?
CLB/DES guarantees 50 FPM rate.
IAS only cares about speed and will pitch for it
If you select a new altitude after the FMA is already flashing ALTS CAP what altitude will the AP capture?
The original altitude
What happens when TOGA is selected on the ground?
Sets AP and FD for takeoff, commands wings level, holds heading at moment of WoW. Green “TO” appears in FMA.
What happens when TOGA is selected in the air?
AP disconnect, Go around mode activated, FD pitches to 8 degrees up.
After takeoff you select speed mode. What vertical mode is displayed on FMA?
Climb mode
What happens if you push the heading button twice on the FCP?
Roll mode enables
What does the XFER button do on the FCP?
Changes which side has the active flight director
What overspeed protections are provided in pitch or Vertical speed modes?
Vmmo - 5 knots
What speed protections are provided in ALTS or ALT mode?
none
What does the TURB button do?
Delays AP response time to dampen corrections from displacement in turbulence
How can you tell if TURB has been engaged?
Green lights on either side of the button on the FCP.
What does half bank mode do?
Limits to 15 degrees of bank.
When must half bank be manually selected on?
Maneuvering below V2 + 10
When will half bank be automatically selected?
31,600’
*Mach is also automatically changed out of IAS mode
What are the four steps used to climb or descend in speed mode?
Altitude (bug)
Speed (set)
Thrust (change thrust)
Adjust (set new speed bug)
What heading is maintained in TO lateral mode?
wings level, holds heading at moment of WOW with no more than 5 degrees of bank.
What is the proper sequence for going between FMS and approach navigation?
- Sync heading bug
- Engage heading mode
- Tune in green needles
- Select approach mode
When would you select APPR instead of NAV?
ILS and most Localizers
What parameter must be met for autopilot to turn on a Speed mode nav mode departure?
400’ AGL or higher
____ is the default lateral mode.
____ is the default vertical mode.
Roll
Pitch
