Thales FMGS - Page 420

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32 VERTICAL F-PLN management
4.3. STEP ALTS
The STEP ALTS function enables
the pilot to plan a change of
cruise altitude and visualize the
change in term of fuel and time
predictions. It is applicable in
cruise to ACTIVE and SEC F-
PLNs, but not to ALTN F-PLN.
Step climbs or descents may be
included in a CORTE or manually
entered at WPTs from T/C to 50
NM before T/D.
Only one step is allowed in a F-
PLN.
The function is not available if
an Engine Out condition is
active.
FROM THV001 {}
UTC SPD/ALT
T-P 2334 / FL358
BRG357° 43
ADABI 0014 291/ FL280
UN874 TRK016° 30
BOKNO 0018 " / "
UN874 27
DEVRO 0022 " / "
UN874 22NM
VANAD 0025 " / "
DEST UTC DIST EFOB
EGLL27R 0107 383 3.5
£$
 To enter STEP CLB or DES
From F-PLN page, at any WPT,
access to VERT REV page.
STEP ALTS [5R]..............Press
The STEP ALTS FROM XXX (CRZ
FL or ALT) page is displayed.
STEP ALT/WPT [1L] .......Enter
Ex: 360/ADABI
TMPY STEP ALTS page is
displayed, showing DIST to and
UTC time at step point (S/C for
step climb, or S/D for step
descent).
Either or both values of
ALT/WPT may be modified by
overwriting or deleted by using
CLR function.
STEP ALT may be entered at a
specified distance after a WPT in
F-PLN (e.g. 360/ADABI/20). In
this case a PLACE/DIST
waypoint is automatically
inserted in F-PLN.
Entry above MAX ALT causes
"STEP ABOVE MAX FL" s-pad msg (white).
Minimum ALT change allowed is 500 ft.
VERT REV AT ADABI
EFOB=5.4 EXTRA=0.6
CLB SPD LIM
250/FL100
SPD CSTR ALT CSTR
[ ] [ ]
ACCESS
<WIND DATA STEP ALTS>
<RETURN
STEP ALTS FROM FL280
ALT / WPT DIST UTC
[ ] /[ ]
<RETURN
360/ADABI
STEP ALTS FROM FL280
ALT / WPT DIST UTC
FL360/ADABI 43 0016
TMPY
<F-PLN
J43126AA 00
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AIRBUS A318/319/320/321