BendixKing KI 525A System KFC 225 - Manual (Page 14)

System Operation
8 KFC 225 AUTOMATIC FLIGHT CONTROL SYSTEM
Rev. 0
Apr/99
14. SELECTED ALTITUDE/VERTI-
CAL SPEED DISPLAY - Normally
displays the selected altitude. The
display indicates the reference verti-
cal speed in FPM for 3 seconds after
the CWS button or the UP or DN
button is pressed and the VS mode
is engaged.
15. ALTITUDE ALERT ( ALERT )
ANNUNCIATION - Illuminates as a
solid alert in the region from 1000 to
200 feet from the selected altitude if
the airplane was previously outside
of this region. Flashes (1) for two
seconds the first time the airplane
crosses the selected altitude and (2)
flashes continuously in the 200 to
1000 feet region if the airplane was
previously inside of this region (i.e.
at the selected altitude). An aural
alert consisting of five short tones is
associated with the visual alerting.
This aural alert occurs 1,000 feet
before a selected altitude while
approaching it and 200 feet after
leaving a selected altitude.
16. PITCH TRIM ( PT ) ANNUNCIA-
TION - A flashing PT with an
accompanying arrow head is an indi-
cation that the request for auto trim
has lasted longer than 16 seconds.
A solid
PT without an arrowhead is
an indication of a pitch trim fault. A
trim runaway will generate the solid
PT annunciation, a remote TRIM
FAIL annunciation and a continuous
alert tone. Refer to the EMER-
GENCY PROCEDURES in the air-
plane Flight Manual Supplement for
proper response to a pitch trim fault.
17. PITCH AND ROLL MODE,
AUTOPILOT AND YAW DAMPER
ANNUNCIATIONS - Displays the
active flight director pitch modes
(PIT, VS, ALT ARM, ALT CAP, ALT,
GS ARM, GS, GA, and roll modes
(ROL, HDG, NAV ARM, NAV, APR
ARM, APR, REV ARM, REV).
Displays when the autopilot (AP)
and yaw damper (YD) are engaged.
Also displayed will be a flashing AP
annunciation (5 seconds) at each
autopilot disconnect accompanied
by an aural tone (for 2 seconds).
18. YAW DAMPER ( YD ) BUTTON
(optional) – When pressed will
engage or disengage the yaw
damper independent of autopilot
operation. (The yaw damper
engages automatically when the
autopilot is engaged; however, the
yaw damper may then be disen-
gaged or reengaged as desired.)
19. AUTOPILOT DISCONNECT
(
AP DISC/TRIM INTER ) SWITCH
(not shown) - When pressed will
disengage the autopilot and yaw
damper if installed, and interrupt
electric trim power. (Located on the
left horn of the pilot’s control wheel.
The switch is red in color.) May also
disengage the flight director depend-
ing on how the system is configured.
20. MANUAL ELECTRIC TRIM
SWITCHES (not shown) - When
both switches are pressed in the
same direction, will activate pitch
trim in the selected direction. If only
one switch is moved, the trim system