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never be lower than VLS.
For example, if you select a speed of 250 knots
on the FCU when the landing gear is extended,
a target speed of 210 knots (VLE) will be taken
into account by the FCU.
Managed Descent Information
In the managed descent mode, the PFD displays
additional speed information. During a managed
descent, the FMGC is allowed to adjust the
target speed by +/-20 knots around the target
speed. This is shown on the speed tape as
follows :
1. The target speed (300 knots in this
example)
2,3.The minimum and maximum speed the
EFIS
Airbus Series Vol.1
38 For Microsoft Flight Simulator use only. Not for use in real aviation.
aircraft can take to stay on the computed
descent path.
4. Vertical path indicator (refer to the altitude
tape section for more information)
Refer to the Autoflight section for more
information about the managed descent.
Altitude Indicator
The altitude tape displays the altitude just like
the speed tape displays the speed.
Altitude tape Altitude tape Altitude tape
when the aircraft (in flight) during
is on the showing the FCU descent.
ground. target altitude.
1. Current altitude value shown in the
altitude window. The altitude is shown in
green in normal conditions, in amber when
the aircraft altitude is below the MDA
(Minimum Descent Altitude, entered in the
MCDU).
The yellow frame flashes when the aircraft
is near the target altitude. It is amber
when the aircraft is too high or too low
according to the FCU altitude mode.
2. Red ribbon showing the ground altitude.
3. FCU target altitude: this symbol is shown
in blue, except when the target altitude is
limited by an altitude constraint on the
next waypoint. In this case, it is magenta.
When the target altitude is higher than the
highest altitude displayed (or lower than
the lowest altitude displayed), the target
altitude is displayed numerically above (or
below) the altitude tape. It is displayed in
feet or as a flight level (FLxxx), depending
on the altimeter setting.
4. During the descent, the magenta circle
shows the deviation between the current
altitude and the computed descent path.
5. In this case, the target altitude is lower
than the lowest displayed altitude, so it is
displayed below the tape altitude. As the
aircraft is above the transition altitude, the
target altitude is displayed in flight level.
Vertical Speed indicator
It is located on the right of the altitude
indicator. It shows the current vertical speed
with a needle and a numerical value (in
hundreds of feet per minute).
The vertical speed indicator turns amber when
the vertical speed is too critical. The maximum
vertical speed depends on the aircraft
configuration.
Heading Indicator
1. Heading reference line (yellow) shows the
current aircraft heading.
2. Track : the green diamond shows the
current track, which is the direction in
which the aircraft really flies. There is no
difference between heading and track
when the wind is null. On this example,
there is a light crosswind from the right.
3. Triangle showing the FCU target heading.
It is hidden if the heading is managed.
If the target heading is out of the heading
EFIS
Airbus Series Vol.1
(c) 2007 Wilco Publishing www.wilcopub.com - www.FeelThere.com 39
indicator range, it is displayed on the left
or on the right (6).
4. Magenta cross showing the ILS course.
5. If the ILS course is out of the current
heading range, it is displayed in magenta
in a window on the left or the right of the
heading tape.
Flight Mode Annunciator (FMA)
It is located in the top part of the PFD. It is the
most important indicator showing in what
mode the aircraft is currently flying.
It is composed of 5 columns. The first column
shows the speed guidance mode. The second
and third columns show the vertical and
lateral guidance modes. Refer to the
Autoflight section to know more about speed
guidance, vertical and lateral guidance.
The fourth column shows the approach mode :
• Line 1 : Category of the current ILS
approach, if any. It is CAT 1 if the aircraft is
flown manually or CAT 3 if the autopilot is
engaged.
• Line 2 : SINGLE or DUAL depending on the
number of autopilots engaged during an
ILS approach.
• Line 3 : Decision height (DH) or the
minimum descent altitude (MDA) entered
in the MCDU. If a value has been entered in
the MCDU, it is displayed on the FMA when
　
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