Autoflight Flashcards
While the Autopilot is engaged, can one use the aileron trim?
No it is prohibited
What does the AFDS (Autopilot Flight Director System) consist of?
2 individual flight control computers FCCs
1 single mode control panel
How can one disengage the AFDS (Autopilot Flight Director System) mode?
- Select another mode
2. disengaging the AP and turning of the FD
What will inhibit Autopilot engagement
- No control forces on the control wheel
2. STAB TRIM AUTOPILOT cutout switch is at NORMAL
How many AP are required for full automatic flare, touchdown, and AP go-around capabilities
Both one AP can not do an autoland
What MCP, (steering) command allows both AP to be engaged at the same time?
APP or Approach Mode
Name some ways to disengage the AP
- Activating either pilots control wheel trim
- loss of respective hydraulic system pressure
- Push the AP disengage switch
- Push the AP mode switch
- Select TOGA in single AP mode below 2000 feet RA
Can the Flight Directors (FD) operated without AP and AT?
Yes
How does one know which AP is the master?
Illumination of the respective master (M/A) FD indicator light.
What are the mode indications above the Attitude Indicator for the mode of the AutoPilot
CMD, FD, 1CH, CWS P, CWS R
What does CMD indicate
one or both autopilots are engaged
What does CWS P indicate
Pitch mode in CWS
What does CWS R indicated
Roll mode in CWS
What does Single CH indicate
single AP ILS, annunciates after loc is captured and remains on for the entire approach
What does N1 indicate
Auto throttles maintains thrust on N1 schedule from FMC including full go-around N1 setting
What does GA indicate
Auto throttles maintains thrust at reduced Go-around setting
What does FMC SPD indicate
Auto throttles maintain speed schedule in the FMC. Limited to the N1 value on the thrust mode display
What does MCP SPD indicate
Auto throttles maintain the speed set in the MCP IAS/MACH display. Limited to the N1 value on the thrust mode display
What does THR HLD indicate
the thrust levers auto throttle servos are inhibited. Pilot can set thrust levers manually
To engage TO/GA for takeoff, ____ and you have to press either TO/GA switch
Both FD switches must be on s
To engage TO/GA mode for go-around press either TO/GA switch when
- In flight below 2000 RA
2. not in TO mode, and either FD switch ON or OFF
While you are in the pitch mode, VNAV SPD commands?
ADFS to maintain the FMC speed displayed on the airspeed indicator or the DCU CLIMB or DESCENT pages.
In the pitch mode, the AFDS Flight Mode Annunciation VNAV PTH commands
Maintain FMC altitude or decent path with pitch commands
In the pitch mode, the AFDS Flight Mode Annunciation VS (engaged) commands
Pitch to hold a vertical speed
In the pitch mode, the AFDS Flight Mode Annunciation ALT ACQ commands
a transition maneuver entered automatically from VS, LVL CHG, or VNAV climb or decent to the selected MCP altitude.
In the pitch mode, the AFDS Flight Mode Annunciation ALT HOLD commands
pitch to hold the MCP selected altitude or uncorrected barometric altitude at which ALT HOLD switch was pushed
In the pitch mode, the AFDS Flight Mode Annunciation MCP SPD commands
maintain the IAS/MACH window airspeed or mach
In the pitch mode, the AFDS Flight Mode Annunciation GS (engaged) commands
follow the GS
In the pitch mode, the AFDS Flight Mode Annunciation FLARE (engaged) commands
dual AP ILS flare engages at 50 ft RA. Flare accomplishes the auto land flare maneuver.
In the roll mode the AFDS Mode Annunciation LNAV commands
intercept and track the active FMC route
In the roll mode the AFDS Mode Annunciation HDG SEL commands
the aircraft to turn the shortest direction or remain on the MCP heading display
Looking at the Mode Control Panel, Speed mode engages automatically when:
- ALT ACQ engages or ALT HOLD engages
2. VS engages or GS capture occurs
Speed Intervention (SPD INTV) switch on the MCP with VNAV is engaged
revels the IAS/MACH display, activate the FMC speed intervention, displays the FMC target speed and allow the IAS/MACH selector to be used to set the desired speed
VNAV engaged in the FMC commands the AFDS pitch and auto throttles to fly s
the vertical profile selected on the FMC CDU’s
In a VNAV Decent the auto throttles hold idle to fly the vertical profile
and the AFDS holds the FMC target speed
In VNAV PATH decent the auto throttles hold idle but may revert to FMC SPD if the Ground speed becomes to slow and the the ADFS
tracks the FMC descent path
LVL CHG in a climb with command to hold N1 limit and the AFDS
to hold selected airspeed
LVL CHG in a decent commends the auto throttles to hold idle and AFDS to
hold the selected airspeed
Altitude Hold and you select a new altitude in the MCP what mode is armed?
VS
when actively climbing or descending with VNAV engaged what does pressing ALT INTV do?
It eliminates the next altitude restriction
Pushing LNAV commands the AFDS roll to intercept and track the active FMC route on the MCP T or F
True
What direction will the airplane turn when pushing the HEG SEL switch?
the shortest direction
What does pushing the APP switch arm?
Loc and GS capture.
