Autothrottle Speed Mode; Autothrottle Go-Around Mode - Honeywell SPZ-8000 Maintenance Manual

4. C. (6) (c) Z Autothrottle Speed Mode
The speed
mode is the primary mode of the autothrottle.
This mode is active anytime:
. A/T is engaged
and
. Flight director modes are not
- takeoff (TO)
- go-around (GA)
- airspeed or
Mach
(IAS,
MACH, VIAS, VMACH).
Once active, the A/T
speed mode holds the
speed target
displayed
in the GP-820 Flight Guidance Controller.
The
speed target comes from:
. FMS (performance)
. Pilot selecting the SPD manual (MAN)
mode and setting a
value on the GP-820 Flight Guidance Controller.
This mode is annunciated in green as IAS or MACH depending
on the speed target.
~ Autothrottle Go-Around Mode
The go-around
mode is
used to rapidly advance and set
go-around power. This mode is selected by:
. A/T
is
engaged
. Select flight director GA mode with TOGA switch on either
power lever.
GA is annunciated in
green in
the PFD vertical mode window
and in green in the PFD autothrottle mode window. This mode
remains active until another flight director mode is
selected.
22-14-00
Page 298.196
Aug 15/91
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