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flight plan. The top of climb is placed
where the aircraft is supposed to reach the
cruise altitude, and the top of descent is
positioned where the crew should initiate
the descent to follow the computed
descent path as closely as possible.
AUTOFLIGHT
Airbus Series Vol.1
(c) 2007 Wilco Publishing www.wilcopub.com - www.FeelThere.com 29
• Deceleration point :
It is displayed with a big ‘D’. It shows
where the aircraft will start
decelerating for the approach. If the
aircraft is in managed descent and
managed heading, the FMGC will
automatically switch to the approach
phase. It means it will automatically
decelerate to green dot speed in clean
configuration, then to S, F and Vapp
speed according to the aircraft
configuration. In addition, the ILS
frequency of the arrival runway will be
tuned, if it is an ILS approach.
Managed Descent with the FS ATC :
If you fly with the FS virtual ATC, there is a
high probability that it asks you to initiate
your descent before the computed top of
descent point. This is not a problem, you can
engage a managed descent. In this case, your
aircraft will be below the computed descent
path for a certain time (descent at 1000 feet
per minute) and it will finally intercept the
correct descent path.
In addition, the ATC will probably ask you to
turn to a certain heading before you reach the
deceleration point (D point). In this case, you
will have to select a heading manually, and
this will force you to leave the NAV mode
(managed lateral mode). Consequently, the
FMGC will not automatically switch to the
approach phase, you will have to do it
manually through the PERF page. I suggest you
do this when switching to the tower frequency
to get the landing clearance.
Approach & Landing
If the speed is managed when the approach
phase is active, the target speed will be:
• Green dot speed if the aircraft is in clean
configuration
• S speed if the slats are extended
• F speed if the flaps are extended
• Vapp if the flaps are in configuration 3 or
FULL
These speeds are computed by the FMGC. The
Vapp speed is continuously updated to take the
current wind into account and make sure the
aircraft can land in safe conditions.
When the aircraft is close to the arrival airport
and the ILS signal is received, the pilot can
initiated an ILS approach by engaging the LOC
and APPR mode to follow the localizer and the
glide slope. Remember that the localizer
should always be captured before the APPR
mode is armed for the glide slope capture.
As soon as the APPR mode is engaged, you can
switch on both autopilots. This is the only time
you can turn them on simultaneously in order
to provide redundancy for an autoland. If both
autopilots are engaged and the ILS is
captured, you can just let the aircraft go and it
will proceed to an automatic landing.
When the aircraft reaches 400 feet AGL, the
LAND mode activates, as shown on the FMA :
As the aircraft comes closer to the ground, it
will automatically engage the flare, which is
also shown on the FMA :
During an autoland, the only action required of
the pilot is to pull the thrust levers back to the
idle position when the "Retard, Retard" callout
is heard 20 feet AGL.
AUTOFLIGHT
Airbus Series Vol.1
AUTOFLIGHT
30 For Microsoft Flight Simulator use only. Not for use in real aviation.
When the aircraft touches the ground, the
ROLL OUT mode engages to steer the aircraft
on the ground. If the auto-brake was engaged,
the aircraft automatically brakes to decelerate
on the ground. This action is shown through the
auto-brake pushbuttons with a “DECEL” signal:
Airbus Series Vol.1
Applying the brakes manually disengages the
auto-brakes.
The pilot is free to engage the reverse thrust if
necessary (this action will never be triggered
by the autopilot). If the pilot makes no action,
the aircraft will come to a complete stop.
If the pilot wants to take control of the aircraft,
he must disengage the autopilot. It looks
obvious, but pilots often forget this and don’t
understand why they can’t control the aircraft
to leave the runway...
(c) 2007 Wilco Publishing www.wilcopub.com - www.FeelThere.com 31
Airbus Series Vol.1
32 For Microsoft Flight Simulator use only. Not for use in real aviation.
EFIS
PANEL GENERAL USAGE
The panel is composed of several windows
that can be popped-up using the auto-hidden
　
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