Thales FMGS - Page 446

MULTI PHASE
6 FUEL monitoring
In the following example, EGKK
(London Gatwick) is selected for
alternate at EGLL (London
Heathrow), without alternate route
inserted in ACTIVE F-PLN.
ALTERNATES page shows [line 3]:
ALTERNATES FOR EGLL
ALTN CO RTE
EGKK
TRK EXTRA DIST
OTHER ALTN
EGKK 152° 3.0 22
EXTRA
{NO ALTN 3.2
<RETURN
THV001 {}
UTC SPD/ALT
------END OF F-PLN------
EGLL ---- ---/ 80
---F-PLN DISCONTINUITY—
EGKK ---- ---/ 250
---END OF ALTN F-PLN----
DEST UTC DIST EFOB
EGLL27R 1625 408 4.3
£$
− Distance (direct GC) 22 NM,
− EXTRA fuel 3.0 T, based on this
distance.
FUEL PRED page shows that:
− Trip fuel for alternate is 0.2 T,
− RTE + FINAL reserves are 1.1 T.
Therefore total fuel available for
alternate is 1.3 T.
If it is decided that for example 2.0T
are needed to allow for a realistic
track distance, FINAL reserve should
be increased by 0.7 T.
EXTRA will then reflect a correct
value available for holding.
FUEL PRED
AT UTC EFOB
EGLL 1625 4.3
EGKK 1630 4.1
GW /CG FOB
63.7 /25.0 5.68/FF+FQ
RTE RSV/% CRZTEMP/TROPO
0.1/5.0 ----°/35000
FINAL/TIME
1.0/0030
EXTRA/TIME
3.0/0122
FUEL PRED
AT UTC EFOB
EGLL 1625 4.3
EGKK 1630 4.1
GW /CG FOB
63.7 /25.0 5.68/FF+FQ
RTE RSV/% CRZTEMP/TROPO
0.1/5.0 ----°/35000
FINAL/TIME
1.0/0030
EXTRA/TIME
3.0/0122
1.7
FUEL PRED
AT UTC EFOB
EGLL 1625 4.3
EGKK 1630 4.1
GW /CG FOB
63.7 /25.0 5.68/FF+FQ
RTE RSV/% CRZTEMP/TROPO
0.1/5.0 ----°/35000
FINAL/TIME
1.7/0049
EXTRA/TIME
2.3/0101
J43126AA 00
© THALES AVIONICS S.A.
AIRBUS A318/319/320/321