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For direct elements, a direct TF leg is strung from the termination waypoint of the previous element to the waypoint specified in the direct element using great circle track.
Arrival segment - Previous existing segment A matching waypoint for the first fixed waypoint of the procedure is searched upstream in the Flight Plan up to the departure waypoint. The procedure and the Flight Plan are strung at this point, ignoring any part of the Flight Plan occurring beyond the identical waypoint. If no matching waypoint is found, the procedure and the Flight Plan are strung with a discontinuity.
Arrival segment
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The matching waypoint for the terminating point of the selected Enroute transition (if one exists) is searched downstream in the STAR ; Enroute transition and STAR are strung at this point and any STAR leg prior to the identical waypoint is deleted.
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The compatible approach transition is searched by comparing the first waypoint to all the approach transitions to the selected runway with the successive waypoints upstream in the already strung Enroute transition - STAR segment. The compatible approach transition is strung to this segment at the identical waypoint. Any part of the Enroute transition -STAR segment occurring beyond the identical waypoint is deleted. (Ref. Fig. 008)
Departure Segment
Figure 007
Arrival Segment
Figure 008
When there is a flight phase transition to Go Around, the previously flown approach is strung in the flight plan.
-
If there is an approach transition which links the active missed approach to the previously flown approach, then this transition is strung in the flight plan between the missed approach and the approach. If not, a discontinuity is strung in the flight plan between the missed approach and the approach. (Ref. Fig. 009, 010)
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If a runway has no associated final approach, it is selected with a final course segment 5 Nm length in the axis of the runway. The origin of this segment is named CF.
(2) Vertical Flight Plan Definition
(a)
Flight phases The flight plan is divided into eight flight phases which are:
-preflight (before takeoff thrust setting)
-take-off (from origin to acceleration altitude)
-climb (from acceleration altitude to Top of Climb)
-cruise (from Top of Climb to Top of Descent)
-descent (from Top of Descent to Decel Point)
-approach (from Decel Point to destination runway threshold or MAP)
-go around (missed approach points)
-done (when on ground)
(b)
Vertical flight plan elements The structure of a complete vertical flight plan is made up of different elements as follows: (Ref. Fig. 011)
Flight Plan in Approach
Figure 009
Flight Plan in Go Around
Figure 010
Vertical Flight Plan Elements
Figure 011
climb
cruise
descent
missed approach
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| Thrust reduction altitude
| Acceleration altitude
| Climb constraints
| Climb speed limit
-
-| Cruise altitude (T/C - T/D) | Step climb or descent
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-| Descent constraints| Descent speed limit | Approach constraints
-
-| Missed approach constraints| Thrust reduction altitude | Acceleration altitude
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If an alternate flight plan exists, the associated vertical flight plan is made up with the following elements :
Alternate climb
Alternate cruise
Alternate descent
Alternate missed approach
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| Climb constraints
| Speed limit
-
-
| Cruise altitude (T/C - T/D) -
-
| Speed limit
| Descent constraints
| Approach constraints
-
-
| Missed approach constraints -
(c) Description of vertical flight plan elements
1 Clearance altitude
_ It is derived from the FCU altitude. Upon modification of the FCU altitude :
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if the A/C is not in level flight then the clearance altitude gets equal to the FCU altitude after a two-seconds confirmation.
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if not, the clearance altitude is equal to the current A/C altitude until the pilot pulls or pushes the altitude selector, at which time it gets equal to the FCU altitude.
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