Approach (APPR)
(ILS
or VOR) Set the inbound front approach course
on the PNI and select Approach mode.
The system'sall-angleApproach Course
Capture feature allows the pilot
to
select
any intercept angle in response
to
ATC
vectors, as in the NAV mode. The Ap-
proachmodewill be "armed," and at the
appropriate capture pointthe systemwill
couple" and command the necessary
bankand pitch
to
capture andtrack LOC
and Glideslope beams for precision ap-
proaches..
.
or bank command
to
cap-
ture and track
VOR
courses for non-
precision approaches.
With back course selected in Approach
mode, the system when capturing will
commandthe banknecessary
to
capture
and track a reverse LOC course
. . .
Glideslope is locked out. The inbound
front approach course is always set on
the PNI
to
enable you to make course
corrections toward theneedle ratherthan
away from the needleon the PNI.
Push the
"Go
Around" button and the
system will command wings level and
nose up
to
a preset missed approach
climb attitude.
Pitch command
to
maintain engaged
altitude.
Provides capability
to
adjust or slew the
Altitude upor down without disengaging
and then reengaging ALT Hold. If Alti-
tude Hold is not engaged, the Vertical
Trim knobwill adjust the pitch attitude
UF
or down.
Permitspreselection of a desired altitude
and automatic capture upon reaching
that altitude.
Control surfaces respond
to
all selected
Flight Director mode commands in both
pitch and roll axis plus automatic pitch
trim. A full time yaw damper is in opera-
tion any time the Autopilot is engaged.
Separate Autopilot servos and capstans
make it easy
to
remove and service the
control surface servoswithout de-rigging
the surface control cables.
Allows manual flight maneuvering with-
outthe need
to
disengage and reengagc
the Autopilot. With the CWS switch de
pressed, the system pitch axis is syn
chronizedwith the airplaneandthe Auto-
pilot servos disengage,
so
the pilot can
handfly the airplane(intheexisting mode
with Autopilot engaged) without remov-
ing his hand from the control wheel.
System senses motion around the yaw
axis and automatically movesthe rudder
to
opposeyaw.
Back Course (BC)
Go Around (GA)
Altitude
Hold
(ALT)
Vertical Trim
Altitude Preselect
Autopilot (AP)
Control Wheel Steering
Yaw Damp Engage
8
