Automatic Flight Flashcards
Selecting which switches will automatically activate A/T if armed? (5)
N1 SPD VNAV FLCH GA
Pushing N1 Switch above _____ feet changes thrust reference from _____ to _____
400 ft radio altitude
TO
CLB
Pushing SPD Switch above _____ feet changes thrust reference from ____ to ____
400 ft radio altitude
TO
CLB
IAS to MACH / MACH to IAS changes at approximately _____
300/.80
747; 310/.84
LNAV engages if the airplane is above ____ feet and within ____ NM of the active leg
50 ft radio altitude
2.5 NM
Pushing VNAV Switch above ____ feet changes the thrust reference from ____ to ____
400 ft radio altimeter
TO
CLB
During climb or descents, AFDS captures and holds ______ or ______ altitude, whichever is reached first
MCP
FMC
Pushing FLCH Switch above ____ changes thrust reference from ____ to ____
400 ft radio altitude
TO
CLB
Heading automatically changes to ILS front course at ______
LOC capture
When is manual bank limit selector active?
in HDG SEL mode
What heading will HDG HOLD mode maintain when pushed during a turn?
heading when wings roll level
What vertical speed is displayed when V/S switch is pushed?
current vertical speed
What altitude will ALT HOLD maintain when switch is pushed during climb or descent?
altitude when the switch was pushed
Localized capture can occur when intercept track angle is within ____ of the localizer course
120 degrees
After localizer capture, flight director roll commands may appear inconsistent with A/P roll maneuvers for ______
one to two minutes
LOC mode can be deactivated after LOC capture by _____ (3)
selecting a roll mode other than LNAV
disengaging the autopilot and turning both F/D switches off
pushing a GA switch
Can glideslope be captured before localizer?
Yes, either localizer or glideslope can be captured first
When does triple A/P automatically engage?
LOC and G/S captured
-AND-
radio altitude below 1500 feet
How is an AFDS or Autothrottle failure or lack of computed information indicated?
mode changes to amber surrounded by amber box
When is GA automatically armed? (2)
extension of wing flaps
glide slope capture
What happens when you push either GA Switch (4)
engages AFDS and autothrottle in GA mode (if armed)
if FD off, activates FD in GA mode
provides windshear guidance (if windshear is detected)
cancels all thrust derates if selected after TO
Is autopilot available if AUTO PILOT light illuminates on center forward panel?
Yes
a degraded operating condition exists (in engaged autopilot)
What are the components of the Autopilot Flight Director System (AFDS)?
What controls the AFDS and autothrottle system
(A/T)?
3 - Flight Control Computers (FCCs - L, C, R)
Mode Control Panel (MCP)
______
Mode Control Panel (MCP)
Flight Management Computer (FMC)
The autopilot controls ______
______ commands are added only during ______
______ commands are added during autoland
ailerons and elevator
rudder
multiple autopilot approach (active - 1500 ft, runway alignment - 500ft)
nose wheel steering
LAND 3 - (fail operational)
LAND 2 - (fail passive)
a single fault can not prevent the autopilot system from making an automatic landing
a single fault can not cause a significant deviation from the flight path
Below _____ the Autoland Status Annunciator (ASA) can not change except to indicate ______ condition
200 feet radio altitude
NO AUTOLND
ROLLOUT (armed) Flight Mode Annunciator (FMA) - displays at ____ and activates at ____
below 1500 feet
below 5 feet
(wings level if 2 deg added for runway alignment/asymmetric thrust compensation)
On the ground, when FD is selected ON the pitch bar indicates an initial pitch of ____
approximately 8 degrees up
After TO the AFDS commands a pitch attitude to maintain ____
If current speed remains above target speed for ___, target speed rests to ____
greater of: V2 or liftoff speed + 15
(747 V2+10)
5 seconds
current airspeed, to a maximum of V2+25 kts
When a GA is initiated, the command speed is _____ or _____, whichever is higher
If airspeed increases and remains above the initial target speed for ____, target airspeed resets to ____
MCP speed
current airspeed
______
5 seconds
current airspeed, to a maximum of MCP + 25
VNAV provides pitch commands to maintain FMC computed airspeed/path
VNAV SPD - pitch to _____
VNAV PTH - pitch to _____
speed
path
FLARE (armed) - displays _____
FLARE (active) - activates _____,
deactivates _____
below 1500 radio altitude
50 feet radio altitude
touchdown
At what speed is THR HLD active?
80 kts (N1 - THR HLD)
747 65 kts THR REF - HOLD
Engine failure pitch command target speed:
At lift-off -
After lift-off -
V2 or airspeed at lift-off, whichever is greater (747 up to V2 + 10)
V2 to V2+15 (747 V2 to V2 + 10)
A/T remains in THR HLD at TO thrust until _____ is selected (3)
pitch mode
A/T mode
thrust mode
(Thrust Mode Select Panel)
(3,2,1)
Altitude capture from a climb that includes a significant _____ may result in _____
airspeed increase or thrust reduction
autopilot descending away from the selected altitude to increase speed
What does Autoland do (3)
approximately 50 ft radio altimeter start flare maneuver
15 ft radio altimeter A/T to idle
(25 ft - 747)
wings level when ROLLOUT engaged
What happens to the autopilot if you lose the L AC Bus?
Lose L and C FCC and all Auto Pilots inop
With FLCH active what happens if you push FLCH switch again?
resets window and bugs to current airspeed
Autothrottle is engaged for TO by pushing N1 switch. FMA changes from N1 to _____ at _____
THR HOLD
80 kts
