NON-PRECISION APPROACH
The FPV Particularly useful on NON-PRECISION approach as 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 tracking and descent flight path can be monitored by reference to the track indicator and the bird. Be aware, however, that the bird only indicates a trajectory and not guidance to a ground based facility for example, when selecting FPA to create a synthetic glide path, the aircraft will be correctly positioned only if it commences descent at the right point in space. Therefor although the bird may indicate that the aircraft is on the correct trajectory, it doesn't necessarily mean that the aircraft is on the correct final approach path, since it may only be paralleling the intended path, when the aircraft is disturbed from the original trajectory, the pilot must adjust either its track or its flight path angle or both in order to obtain guidance back to the original trajectory
VISUAL CIRCUITS
The FPV is useful as a cross-reference when flying visual circuits. On the downwind leg. Put the wings of the bird on the horizon to maintain level flight. The downwind track should be set on the FCU place the tail of the bird on the blue track index on the PFD to maintain the desired track downwind
On the inbound approach, the index should be set to the runway final approach course, A standard 3° approach path is indicated by the top of the bird's tail being just below the horizon and the bottom of the bird being just above the 5 ° pitch down marker.
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