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Esterline CMA-9000 - Preparation for Descent

Esterline CMA-9000
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OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
For holding patterns during cruise:
1. Prior to entering the hold the FMS commands a level deceleration, prior to entering the hold, to a speed
e maintained unless a new
while in the hold either on the HOLD or LEGS pages.
2 Upon exiting a hold, the FMS commands an acceleration to the original cruise schedule speed.
and Forecast
entered for up to 4 different flight levels/altitudes. Forecast winds are
tting. This entry
imeter setting
n le
3
4 ntry 0ºC – limited to -55ºC) causes
tra de constraints, crossing altitudes
If no temperature entry is performed, an ISA deviation of 0 at the destination airport is assumed.
An UNABLE TEMP COMP ALT message will be raised if at least one temperature compensated waypoint
altitude is higher than the lowest non-temperature compensated waypoint altitude.
Positive temperature entries are used for profile generation but do not temperature-compensate the
waypoint altitude constraints.
Refer to the Descent section Altimeter Setting Effect on Descent Profile sub-section for additional details
concerning these fields.
constraint (if one exists); otherwise, to a green dot speed. This speed will b
speed is manually entered
.
3. Fuel predictions will be updated.
1.7.9 Preparation for Descent
heT t DES FORECAST pages are used o enter the Destination airport information (page 1/2)
Descent Winds (page 2/2). The FMS uses the following data to compute the vertical profile:
. Forecast descent winds can be 1
blended with current wind during the descent.
2. The descent profile is adjusted based on the destination airport forecast altimeter se
reduces VDEV sudden changes when the altimeter is changed from STD to the local alt
during descent through the transitio
of a negative temperature (below
vel.
. Transition level.
nsition and approach waypoint altitu
. Destination airport temperature. E
temperature correction of approach
and the MDA/DA.
DES FORECAST 1/2 DES FORECAST 2/2
LFBO TEMP LFBO QNH ALT WIND
+15`C 28.80i
NOTES:
FL330 220$/050kt
nhg{
TRANS LVL CORRECT ION
FL180 QNH{ FL260 2
00$/040kt
LDG ELEV
497 ft
FL210 180$/035kt
12000 190$/025kt
PROFILE} PROFILE}
Page F-38
August 17, 2010
DRAFT

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