AUTOFLIGHT, CAT I
Description
Aircraft Operations Manual
3.1
S
PAGE
8
Jun 01/19
3.
CONTROLS AND INDICATORS
A13577
NAV S
L
NAV S
R
A
B
TURN
DN
UP
ENGAGED
DISENGAGED
YD
AP
TURN knob/pitch wheel.
TURN knob.
The rate type TURN knob is spring loaded to return to a center detent position. The knob is used to manually
apply heading commands to FD/AP.
Moving TURN knob out of detent slews the HDG bug at a rate proportional to amount of knob displacement.
PITCH wheel.
Pitch wheel is spring loaded to return to a center detent position. The wheel is used to manually apply verti-
cal speed commands to FD/AP in steps of 50 ft.
Moving pitch wheel from detent resets vertical mode to VS (except in GS ”CAP” and ALTS mode) and then
slews vertical speed reference at rate proportional to the amount of wheel displacement.
NAV SOURCE SELECTOR Pushbuttons (green).
The NAV S Left respective Right pushbuttons are
used to couple left or right navigation source to the
FD/AP.
HDG bug on EHSI will synchronize to existing head-
ing if pushed in NAV mode and captured on VOR or
LOC.
YD/AP engage levers.
The YD and AP engage levers are spring
loaded to DISENGAGED position. Moving
levers to ENGAGE position engages Yaw
Damper and Autopilot after a selftest period
of one (1) sec. YD may be engaged sepa-
rately. Moving AP lever to ENGAGED will
engage both YD and AP.
A
NAV SOURCE SELECTORS
B
AP CONTROL PANEL
Fig. 2 FGAS
−
controls and indicators