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aligned).
2. True Air Speed (TAS) : This is the real aircraft
airspeed. It is different from the Indicated Air
Speed (IAS) because the IAS varies with
altitude (the air is thinner at high altitudes). If
there is no wind at all, the TAS is equal to the
GS. Just like for the GS, the TAS is not
accessible if no IRS is aligned, unless you are
in Beginner mode.
3. Wind Speed & Direction : This indicator
provides the wind speed (in knots) and the
heading from which it comes. It is
displayed with numbers and with a rotating
arrow that represents the wind direction.
4. Left Navaid : The left navaid symbol, type,
name/frequency and distance are shown. If
a navaid name is extracted from the signal
received on the corresponding frequency it
is displayed on the ND, otherwise the
frequency is displayed. The navaid type
(VOR, ADF or nothing) is selected on the
EFIS control panel.
EFIS
Airbus Series Vol.1
42 For Microsoft Flight Simulator use only. Not for use in real aviation.
5. Right Navaid : Same as above for the right
navaid.
6. TCAS : The ND also shows TCAS information.
Refer to the TCAS section to know
more about this system.
7. Aircraft Symbol : It represents the current position
of the aircraft. It is always used as the center
reference of the ND, except in PLAN mode.
8. Lateral Deviation : If the aircraft is not on
the programmed route, this number shows
the lateral deviation (in NM) between the
aircraft and the route.
Navigation Information
The ND displays some navigation specific
information.
1. The vertical yellow line shows the current
aircraft heading.
2. Autopilot heading : The blue triangle
shows the target heading selected on the
FCU. If the heading is managed, this
triangle does not appear.
3. The green diamond shows the current
track, which is the direction in which the
aircraft is actually flying. In this example,
as the wind comes from the right, the track
is on the left of the heading. If there is no
wind, the heading and the track are the
same.
If the heading is selected, a full green line
is drawn from the aircraft position to the
track diamond to visualize the aircraft
trajectory.
4. The flight plan entered in the FMGC is
drawn in green. If the heading is in
managed mode, it is a solid green line. If
the heading is selected, it is a dashed
green line.
The flight plan waypoints are represented
with green diamonds, except the next
waypoint, which is drawn in white.
5. Auto-tuned navaid: When the FMGC autotunes
the VOR1 or VOR2 navaid, it is
displayed in blue on the ND. In this
example, AGN is the auto-tuned VOR2 and
it is the next waypoint. This is why AGN is
drawn both in white and in blue.
Flight Plan Information
Runways
If the crew has not defined the departure/
arrival runways, the departure/arrival
airports are displayed as white stars.
When the runway information is entered in the
MCDU, the runways are represented on the
flight plan display as a white rectangle. The
rectangle length and orientation represent the
actual runway length and orientation.
Waypoints
The flight plan waypoints are displayed as
green diamonds. The next waypoint of the
flight plan is shown in white and its
information (name, distance, ETA) is shown in
the top right corner.
Constraints
If a waypoint has a speed or altitude
constraint, it is represented with a magenta
circle (1). If the crew wants to have more
information about the constraints, the CSTR
button of the EFIS control panel can be
pressed to activate the constraint display for
each constrained waypoint. The altitude
and/or speed constraint is then displayed in
magenta (2).
Pseudo-Waypoints
EFIS
Airbus Series Vol.1
(c) 2007 Wilco Publishing www.wilcopub.com - www.FeelThere.com 43
The pseudo-waypoints are displayed with
specific symbols:
1,2.A white arrow shows the computed top of
climb (1) and top of descent (2).
3. A magenta point shows a speed limit
waypoint where the aircraft will have to
respect a speed limit. Usually, there is a
speed limit of 250 knots below 10.000 feet.
4. A magenta circled ‘D’ represents the
deceleration waypoint. This is the waypoint
where the aircraft will decelerate to the
green dot speed and the approach phase
will be activated.
E/WD – ENGINE/WARNING DISPLAY
This EFIS shows the important engine
information. It also displays warning and alert
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Airbus_Pilots Guide_UK空客飞行员指南(25)
