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hand flying but using autothrust (which is very common). In this case the flight
controls are in manual but the thrust is in autoflight. The other thing to point out
is that when hand flying the pilot may use the Flight Director so that while the
aircraft is under manual control the pilot is still getting autoflight or computer
guided assistance.
Autopilot
There are two autopilots installed. Normally you will only use one autopilot at a
time (Capt. using A/P 1 and F/O using A/P 2). However, for every ILS approach
you will engage both autopilots (except, of course, when the second is inop.).
The autopilot can be controlled either directly from the FCU (Flight Control Unit)
or through the MCDU and the FMGC. In both cases you must monitor
engagement status on the FMA. The FCU has four places to make inputs,
Speed, Heading/NAV, Altitude and Altitude Hold/Vertical Speed. In each case
US Airways Airbus A319, A320, A321 Notes
50
the knob for the selection can be pressed or pulled. Pressing the knob will tell the
autopilot to use the FMGC for guidance. Pulling the knob will tell the autopilot to
use a pilot selected value.
When the autopilot control is engaged (push) on the FMGC for a setting a white
dot will appear on the LCD readout for that setting. If the autopilot control is
selected (pull) to a pilot set value the pilot value will appear in the LCD readout.
Always confirm settings on the FMA at the top of the PFD.
Speed: Pull to select to KIAS or Mach by pilot, dial to needed speed. Press to
engage in Managed speed mode in FMGC
Heading: Pilot can dial to set desired heading then pull to select HDG mode.
Pressing HDG knob will engage Managed NAV and allow autopilot to track
FMGC route.
Altitude: Value set by pilot, pulling will allow open climb/descent (full power climb,
idle descent), pressing will engage to allow Managed climb/descent on FMGC
Altitude Hold/Vertical Speed: Pulling knob will select vertical speed mode. Dial
knob to select amount of climb or descent in hundreds of feet per minute.
Pressing knob will engage an immediate level off in altitude hold.
For Example (PH 2.9.11):
“Speed 170” – pilot selects new speed of 170
“Managed Speed” – speed controlled by FMGC, known as managed speed.
“Heading 280” – pilot selects new heading of 280.
“Nav” – track controlled by FMGC route
US Airways Airbus A319, A320, A321 Notes
51
Autopilot
“Autopilot Off”
or
“Autopilot 1 (2)”
Flight Directors
“Flight Directors Off”
or
“Flight Directors On”
Speed
“Speed _____”
or
“Managed Speed”
Heading/Nav
“Heading _____”
or
“Nav”
Open/Managed
Climb (Descent)
“Open Climb (Descent)”
or
“Managed Climb (Descent)”
Vertical Speed
“Vertical Speed Plus (Minus)_____”
or
“Vertical Speed Zero”
Select is always knob pulled to you (pilot is “taking” the control of the
autopilot). When using select if you are changing the amount from what is
in the window then say amount after naming control.
Managed (Hold) is always knob pushed away from you (pilot is “giving”
control of autopilot to FMGC).
Memory and Non-memory autopilot limits (PH 1.10.1)
After Takeoff (if SRS indicated) 100’ AGL
Enroute 500’ AGL (321: 900’)
Non-precision approach MDA, DA or DDA
CAT 1 ILS Approach (no autoland) 160’ AGL
Autoland Touchdown
After a manual go-around in SRS mode 100’ AGL
Autothrust
The big picture on Airbus autothrust; During ground operations handle the thrust
levers as on a “normal” aircraft. At takeoff push the thrust levers up to 50% on
N1 until both engines stabilize, then push the thrust levers up to FLX/MCT (two
clicks) or TOGA (three clicks). When LVR CLB flashes (normally about 1000’) on
the FMA reduce the thrust lever back to CL (one or two clicks). The thrust will
now be controlled through the FMGC or the FCU. The thrust levers in normal
operation will not move again until landing when at about 30 to 50’ the PF will
reduce the thrust lever to idle and the autothrust will automatically disconnect at
that point. There is no physical connection between the thrust levers and the
US Airways Airbus A319, A320, A321 Notes
52
powerplant. It is all done electronically which is called FADEC (Full Authority
Digital Engine Control).
Thrust is now set by selecting Open Climb (OP CLB) or Open Descent (OP DES)
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