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A330/A340 FLIGHT CREW TRAINING MANUAL
SUPPLEMENTARY INFORMATION
FLYING REFERENCE
A330/A340 FLEET SI-020 P 2/4
FCTM 17 JUN 09
Use of FPV
With the Flight Directors (FDs) selected on, the Flight Path Director (FPD) replaces the HDG-VS
Flight Director (FD). With both FDs pb set to off, the blue track index appears on the PFD horizon.
PRACTICAL USES OF THE FPV
As a general rule, when using the bird, the pilot should first change attitude, and then check the
result with reference to the bird.
NON-PRECISION APPROACH
The FPV is particularly useful for non-precision approaches. The pilot can select values for the
inbound track and final descent path angle on the FCU. Once established inbound, only minor
corrections should be required to maintain an accurate approach path. The pilot can monitor the
tracking and descent flight path, with reference to the track indicator and the bird.
However, pilots should understand that the bird only indicates a flight path angle and track, and
does not provide guidance to a ground-based radio facility. Therefore, even if the bird indicates
that the aircraft is flying with the correct flight path angle and track, this does not necessarily
mean that the aircraft is on the correct final approach path.
A330/A340 FLIGHT CREW TRAINING MANUAL
SUPPLEMENTARY INFORMATION
FLYING REFERENCE
A330/A340 FLEET SI-020 P 3/4
FCTM 17 JUN 09
VISUAL CIRCUITS
The FPV can be used as a cross-reference, when flying visual circuits. On the downwind leg,
the pilot should position the wings of the bird on the horizon, in order to maintain level flight. The
downwind track should be set on the FCU. The pilot should position the tail of the bird on the
blue track index on the PFD , in order to maintain the desired track downwind.
On the final inbound approach, the track index should be set to the final approach course of the
runway. A standard 3 ° approach path is indicated, when the top of the bird's tail is immediately
below the horizon, and the bottom of the bird is immediately above the 5 ° nose down marker
Use of FPV in the Final Approach
FINAL APPROACH
The bird is a very useful flight reference, because it provides the trajectory parameters, and
quickly warns the pilot of downburst. In addition, together with the GS MINI protection, it is
an excellent indicator of shears or wind variations. The position of the "bird" in relation to the
fixed aircraft symbol provides an immediate indication of the wind direction. Therefore, when
approaching the minima, the pilot knows in which direction to search for the runway.
If the target approach speed symbol moves upward, this indicates that there is headwind gust. If
the bird drifts to the right, this indicates that there is wind from the left.
A330/A340 FLIGHT CREW TRAINING MANUAL
SUPPLEMENTARY INFORMATION
FLYING REFERENCE
A330/A340 FLEET SI-020 P 4/4
FCTM 17 JUN 09
Bird and Target Speed - Wind Interpretation
RELIABILITY
The FPV is computed from IRS data, therefore, it is affected by ADIRS errors. An error may be
indicated by a small track error, usually of up to ±2 °. This can be easily determined during the
approach.
The FPV is also computed from static pressure information. Therefore, the bird must be
considered as not reliable, if altitude information is not reliable.
GO AROUND
Applicable to: ALL
For the go-around, the appropriate flight reference is the attitude, because go-around is a dynamic
maneuver. Therefore, when performing a go-around, regardless of the previously-selected flight
reference, upon selection of TOGA, the FD bars are automatically restored in SRS/GA TRK modes,
and the "bird" is automatically removed.
A330/A340 FLIGHT CREW TRAINING MANUAL
SUPPLEMENTARY INFORMATION
NAVIGATION ACCURACY
A330/A340 FLEET SI-030 P 1/8
FCTM 17 JUN 09
GENERAL
Applicable to: ALL
The primary function of the FMS is navigation, i.e. to compute the aircraft's position as accurately as
possible. The validity of all other functions depends on the accuracy of the FMS position.
The accuracy of the FMS navigation determines the flight crew's strategy for using the AP / FD
modes, in addition to the ND display.
COMPUTATION OF THE AIRCRAFT POSITION
Applicable to: ALL
WITHOUT GPS PRIMARY
PRINCIPLE
The FMS position is computed from the three IRS positions, that are combined to provide a
MIX IRS position. The radio position is also combined, if two DMEs, a VOR/DME or a GPS
supplemental are available. The GPS supplemental is considered to be an additional form of
NAVAID, and can be accepted, if it falls within the radio position or the MIX IRS position.
　
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