OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
• During Cruise, the RTA-based cruise target speed may be adjusted if the predicted ETA at the RTA
be the result of
edicted values.
aircraft cannot meet the RTA within the displayed
rn while an RTA is active.
speed will automatically be cancelled if:
new cruise target speed is manually entered.
not be assigned an RTA.
ified to achieve it;
elope.
olding pattern (if applicable).
e forecast cruise
• cal flight plan changes are made during the descent phase
ed will not change to meet the RTA.
erride an FGCP selected speed and an active RTA speed will ignore
the selection of an FGCP speed. The FMS prediction will be based on the RTA cruise target speed even if
be created, for example, for ATC spacing during trans-oceanic cruise. A
ed to a cruise waypoint on the LEGS page propagates to following
n existing speed constraint, or the T/D anticipation point.
is maintained once the starting waypoint is laterally sequenced,
• a holding pattern becomes active or is exited; or
• a transition to descent occurs.
To assign a cruise constant speed segment to a waypoint:
1. Enter the desired cruise constant speed at the waypoint on the LEGS page.
2. In the example below, a speed of MACH 0.77 is desired from waypoint SCR06 onward.
Enter .77/ at [1R] to enter the constant speed segment starting waypoint.
3. Press [EXEC].
waypoint falls outside an acceptable RTA threshold. This target speed adjustment may
actual winds or temperatures which differ from the pr
• An RTA UNACHEIVABLE message will be raised if the
RTA window, or enters a holding patte
• The RTA-based cruise target
• A
• The aircraft enters a holding pattern.
NOTES:
• RTA is applicable to cruise and descent waypoints only. Climb waypoints can
When an RTA is assigned to a descent waypoint, only the cruise target speed will be mod
the climb and descent target speeds are not affected.
• The RTA target speed is limited within a certain margin included in the airplane speed env
• The RTA target speed will be re-activated on exit from the h
• Meeting the RTA within 30 seconds of the desired time is dependent on the accuracy of th
and descent winds.
The RTA may not be respected if any lateral/verti
of flight since the descent target spe
• The activation of an RTA speed will ov
the FGCP speed intervention is active during cruise.
1.7.7 Cruise Constant Speed Segments
Constant speed segments can
segment (entered in MACH or IAS) assign
t a cruise waypoint with acruise waypoints, and ends a
A constant speed segment becomes active and
until any of the following occurs:
• entering a new manual speed; or
speed at a waypoint; or • deleting the
Page F-36
August 17, 2010
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