General Information; System Component Description; Functional - Honeywell BENDIX/KING KCS55 Installation Manual

Pictorial navigation system
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RELEASED FOR THE EXCLUSIVE USE BY: AIRCRAFT ELECTRONICS ASSOCIATION
BENDIX/KING
1.1

SYSTEM COMPONENT DESCRIPTION

The KCS 55/55A Pictorial Navigation System is composed of five units: KI 525/525A Pictorial
Navigation Indicator, KG 102/102A Directional Gyro, KMT 112 Magnetic Azimuth Transmitter, KA
51/51A/51B Slaving Accessory, and the KA 52 and KA 57 Autopilot Adapters, if required.
The KI 525/525A Pictorial Navigation Indicator provides a pictorial display of the horizontal navi-
gation situation. The KI 525/525A also provides manual controls for course and heading datum
selections. Outputs from the KI 525/525A are for automatic pilot or flight director, VOR receivers
and additional compass loads.
The KG 102/102A Directional Gyro is a remote mounted unit which, in conjunction with the KMT
112 Magnetic Azimuth Transmitter, provides a gyro-stabilized magnetic heading to the KI 525/
525A Indicator. In addition to the slaving circuitry this unit contains an internal power supply which
provides excitation voltages for the Magnetic Azimuth Transmitter and positive and negative D.C.
voltages for the Pictorial Navigation Indicator and the Slaving Accessory.
The KMT 112 Magnetic Azimuth Transmitter senses the direction of the earths magnetic field and
transmits this information to the Pictorial Navigation Indicator.
The KA 51/51A/51B Slaving Accessory is a panel mounted unit which contains the slaving meter,
slaving switches, and corrector circuitry which compensates for the effect of local magnetic distur-
bances on the Magnetic Azimuth Transmitter.
The KA 52 Autopilot Adapter is an optional remote mounted device that converts the DC heading
and course datum signals from the Pictorial Navigation Indicator into two separate AC signals
compatible with certain autopilot systems.
The KA 57 Autopilot Adapter is an optional remote mounted device that converts the DC heading
and course datum signals from the KI 525/525A Indicator into a single, switchable AC output sig-
nal compatible with certain autopilot systems.
1.2

FUNCTIONAL

(KCS 55 System)
When power is first applied to the KCS 55 System, and the system is in the slaved gyro mode, the
heading display will automatically fast slave at the rate of 180 degrees per minute to align the slav-
ing control transformer in the KI 525 with the magnetic heading transmitted by the KMT 112. The
system will remain in this fast slave mode for 120 seconds after which it will automatically revert
to the normal slaving mode and slave at a constant rate of 3 degrees per minute to keep the sys-
tem aligned with the earth's magnetic field. If the system is cycled from the free gyro mode to the
slaved gyro mode by means of actuating the "slave in" button on the KA 51 the "fast slave" will
automatically be repeated.
(KCS 55A System)
When power is first applied to the KCS 55A System, and the system is in the slaved gyro mode,
the heading display will automatically fast slave at the rate of 180 degrees per minute to align the
slaving control transformer in the KI 525A with the magnetic heading transmitted by the KMT 112.
The system will remain in this fast slave mode until the slaving error is reduced to zero and then
revert to the normal slaving mode and slave at a constant rate of 3 degrees per minute to keep
the system aligned with the earth's magnetic field. If the system is cycled from the free gyro mode
to the slaved gyro mode by means of actuating the "slave in" button on the KA 51A (toggle switch-
es on the KA 51B), the "fast slave" will automatically be repeated.
Rev 11, Apr/2007
©Honeywell International Inc. Do not print without express permission of Honeywell
SECTION I

GENERAL INFORMATION

KCS 55/55A
Page 1-1

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