BENDIX/KING KCS 55/55A
Rev 11, Apr/2007
©Honeywell International Inc. Do not print without express permission of Honeywell Page 1-7
1.4 UNITS AND ACCESSORIES SUPPLIED
1.4.1 KI 525/525A PICTORIAL NAVIGATION INDICATOR
The KI 525/525A is an internally lighted unit that displays a gyro-stabilized aircraft magnetic head-
ing, selected course, selected heading. VOR and localizer course deviation, glideslope deviation
and a TO-FROM indication for VOR flight.
In addition, warning flags are provided to signify unusable VOR/Localizer information (NAV Flag)
and to indicate a valid compass system (HDG Flag). The glideslope pointer will retract from view
when an unusable glideslope signal is being received.
A bootstrap heading synchro is provided as a source of slaved heading information, and heading
and course select transducers provide DC signals for autopilot or flight direction information. Ei-
ther of two types of course resolver is provided depending on which part number unit is chosen.
All part numbers are capable of operating at 30Hz. However, 066-03046-02/03/06/07/11/12 are
capable of operating at either 30Hz or 400Hz. Serial number 43434 and above have glideslope
damping for helicopters in all versions.
SIZE: x 10.20 centimeters) See Fig. 2-9
WEIGHT: See Fig. 2-9
MATING CONNECTOR: See paragraph 1.5 Installation Kits
POWER INPUTS:
±15 volts DC from KG 102/102A
SIGNAL INPUTS: Heading select DC input from the KI 525/525A Course da-
tum DC input from the KI 525/525A AC reference input
from aircraft autopilot system at 7 volts R.M.S. minimum.
Localizer Normal - ground when radio coupler selector
switch is at LOC Normal.
Localizer Energized - ground when NAV 1 receiver tuned
to localizer frequency.
SIGNAL OUTPUTS: Heading select AC or course datum AC output transform-
er isolated and phase locked to the reference input from
the autopilot.
RELEASED FOR THE EXCLUSIVE USE BY: AIRCRAFT ELECTRONICS ASSOCIATION
UP536434
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