Saab 340B, Operation Manual, Page: 153 / 670

AUTOFLIGHT, CAT I
Description
Aircraft Operations Manual
3.1
S
PAGE 13
Jun 01/19
A13922
20
10
LOC1
AP
YD
FD RUD
AIL
EL
GS
M
DH200
20
10
20 20
10 10
A
Engagement of the autopilot is annunciated as a
green box with the letters AP. The annunciation
turns red and flashes when disengagement oc-
curs. A second push on the disconnect button
will reset the warning.
Disengagement of the yaw damper is annun-
ciated as a yellow box with the letters YD. A se-
cond push on the disconnect button will reset the
warning.
Flight Director flag.
Failure of the flight director is annunciated as a
red box with the letters FD. The flight director will
be removed (not shown in this picture). The in-
dication will flash for 10 seconds before becom-
ing steady.
LATERAL MODES:
HDG
VOR 1 (Arm./Cap.)
VOR 2 (Arm./Cap.)
LOC 1 (Arm./Cap.)
LOC 2 (Arm./Cap.)
LRN 1 (Option)
GA (Go Around)
DR (Dead Reckoning)
VERTICAL MODES:
VVVV VS (Vert speed up − VVVV is rate in ft/min.)
VVVV VS (Vert speed down − VVVV is rate in ft/min.)
SSS I CLB (CLIMB − SSS is speed in knots, I is speed mode L − M − H.)
SSS ALT (ALTITUDE − SSS is Flight advisory speed in knots for long
range cruise − only displayed when ALT in track mode.)
SSS ALTS (ALTITUDE − SSS is Flight advisory speed in knots for long
range cruise − only displayed when ALTS in track mode.)
SSS IAS (indicated airspeed − SSS is speed in knots.)
ALTS (Altitude preselect armed/captured.)
GS (Glideslope armed/captured.)
GA (Go Around.)
VNAV (Vertical Nav. if installed.)
FD, Flight Director command bar in magenta.
FD bar disappears when failures occurs.
If an elevator, aileron or rudder mistrim is detected, a
yellow box with the letters EL, AIL or RUD will appear,
indicating difficulties to trim out the control forces.
The mode annunciation in in WHITE for armed GREEN for captured modes.
A EADI
FD
Flight Director comparator caution in yellow. Comes on
flashing at differences of more than 5 degrees between
displayed LH or RH pitch steering, or between dis-
played LH or RH roll steering commands. Reset by
master caution button.
Fig. 5 FD/AP modes