MULTIPHASE
LATERAL F-PLN management
15
AIRBUS A318/319/320/321
© THALES AVIONICS S.A.
J43126AA 00
Stringing rules
The F-PLN is built from departure to arrival with different elements
which are RWY/SID, En-route, STAR/RWY. All elements must be strung
together; otherwise they are strung by a F-PLN discontinuity.
At departure
Depending on airport and NAVdb provider, departure may contain up
to three segments: SID runway transition, SID and SID en-route
transition. When selected from DEPARTURE page they are strung
together as described below.
When an en-route segment is already entered, the FMS "searches" in
F-PLN for a WPT matching the end-point of departure route.
−
If found, DEP route is strung to this WPT; any preceding en-route
WPTs are ignored (example 1),
−
If not found, DEP and en-route segments are strung by a F-PLN
discontinuity (example 2).
EOSID (when available) contains only one segment.
If a RWY is selected with no SID, the departure procedure is defined by
RWY and a leg terminating at 1500 ft AGL on the RWY axis, followed by
a F-PLN discontinuity.
RWY
SID En-route TRANS
SID RWY
TRANS
SID
En-route
First point of En-route
in F-PLN-route
Search downstream
RWY
SID En-route TRANS
SID RWY
TRANS
SID
En-route
First point of En-route
in F-PLN-route
Search downstream
F-PLN DISCONTINUITY
Example 1
Example 2
Summary of Contents for FMGS
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