28
FLIGHT PHASES
PREFLIGHT
J43126AA 00
© THALES AVIONICS S.A.
AIRBUS A318/319/320/321
Check & complete PROG page
PROG key .......................Press
CRZ, OPT, REC MAX .......Check
If CRZ is above OPT, overwrite a
suitable lower FL.
OPT:
Optimum altitude is the altitude for
minimum cost.
Computation takes into account: CI
(cost index) corrected by Perf Factor,
Ground Speed (KT), total fuel flow.
REC MAX:
Recommended Maximum Altitude
computed according to following criteria:
Stabilized in level flight with less than MAX CRUISE thrust,
Speed maintained between GREEN DOT and VMO/MMO,
Minimum rate of climb 300 ft/mn at MAX CLIMB thrust,
Altitude can be reached a margin of 0.3 G,
Altitude is less than MAXIMUM CERTIFIED ALTITUDE.
BRG/DIST TO may be entered with DEST (see Check F-PLN section),
or ident of take-off RWY in case of immediate return.
If GPS installed:
GPS PRIMARY ...............Check
In any case:
ACCUR...........................Check
See Part III: Ch 7.3 – Position monitoring.
PREFLIGHT THV001
CRZ OPT REC MAX
FL360 FL360 FL383
<REPORT
UPDATE AT
*[ ]
BRG /DIST
---° /----.- TO [ ]
PREDICTIVE
<GPS GPS PRIMARY
REQUIRED ACCUR ESTIMATED
0.80NM HIGH 0.08NM
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