Honeywell SPZ-8000 Maintenance Manual page 649

Digital automatic flight control system for gulfstream iv
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b
TO/GA
\
t
AI'-r
ENGI
DISENG
JL
m
EN&
DISENG
VfEW FROM REAR
(PILOT SEAT)
AD.20S07
Autothrottle
Switch
Locations
on
Power
Levers
Figure
266
The autothrottle can be engaged, via the A/T ENG/DISENG switch,
any time the following criteria is met:
A/TARM
light is annunciated on the GP-820 Flight Guidance
Controller.
.
A
speed
target
is displayed
in the GP-820 speed window (for
speed
mode
only).
. An EPR limit rating has been selected (MAN or AUTO) for
display on the DC-884 Display Controller.
. Bleed air isolation valve must be CLOSED.
.
N1
cannot
be split
by more than
20%.
No engine out condition (N2 < 41%).
. Valid preselector.
22-14-00
Page 298.186
Aug 15/91
Use or
disclosure
of
information
on
this
page
is
subject
to
the
restrictions
on
the
title
page
of
this
document.

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