Cessna 172S Pilot Operating Handbook page 130

SECTION 9 - SUPPLEMENTS
SUPPLEMENT 13 - FAA APPROVED
Figure 2. KA-51 B Slaving Accessory and Compensator Unit
1. KA-51B SLAVING ACCESSORY AND COMPENSATOR UNIT
-- Controls the KCS-55A Compass System.
2. MANUAUAUTOMATIC
SWITCH -- Selects either the manual or automatic slaving
mode for the Compass System.
3.
CW/CCW COMPASS MANUAL SLAVE SWITCH -- With the
manual/automatic compass slave switch in the FREE position,
allows manual compass card slaving in either the clockwise or
counterclockwise di
center position.
4.
SLAVING METER -- Indicates the difference between t h e
displayed heading and the magnetic heading. Up deflection
indicates a clockwise error of the compass card.
deflection indicates a counterclockwise error of the compass
card.
4
(FREE/SLAVE) COMPASS SLAVE
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MODEL 172S
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