
1. Untilpower
1s
applied
to
the KCS 55ASys-
tem, and the directional gyro Is
up
to
speed,
a red flag labeled "HOG"WIii
be
visible
In
the
upper
rightquadrantoftheKl 525AIndicator
In operation, this warning flag will
be
visible
whenever the power being supplied is in-
adequate or the
gyro
is nol
up
to speed.
2. With the application
of
power to the KCS
55A System,
and
9yro
up
to
operating
speed, the red "HOG flag should
disappear
from view
3.
II
the
KCS
55A System isin
the
slaved gyro
mode, thecompass
cardw1II
automatically fast
slave at
the
rate of
180
degrees per minute
toward the aircraft's magnetic heading.
(Immediately after applying power, this com•
passcardmovement should
be
quitevisible.)
It
will continue to
fast
slave until the proper
magnetic heading is indicated. after which it
will slave at a constant rate
of
3 degrees per
minute
to
keep the system aligned with the
earth's magnetic field.
Under some conditions it is possible for
the system to stop slaving exactly 180• from
thecorrect heading. If thisshouldoccur, move
lhe Man/Auto switch
to
the
Man
position.
Rotatethecompasscard :!:
10
• fromtheincor•
reel heading byholding theCW/CCWswitch to
one side, and then return the system
to
slaved
operation bymoving theMan/Autoswitchback
to
theAuto position. The systemwill thenslave
to lhe correct heading.
4.
For free gyro operation, check the slaving
meter
to
determinewhetherthereis right orleft
deflection.
Then
hold the CW/CCW switch
to
center
the
needleandproperlyalign thesystem
with
the
earth's magnetic field A check with
the standby compass is recommended
to
assure lhere is approximate agreement.
8
OPERATING
5. Until a usable navigation signal
1s
being
received
by
the KCS 55A system, a red flag
labeled "NAV" will
be
visiblein the
upper
left
quadrant of the Kl
525A
Indicator In opera-
tion, this warning flag should
be
visible
whenever an inadequatenavigaltonsignal is
being received.
6. For normal navIgallon to or from a VOA or
VOATAC, set the
NAV
receiver
to
the desired
VOR
or
VOATAC frequency
and
the red navi-
gationflag (NAV) shoulddisappearfromview
ii
a usable signal
1s
being received.
7. Rotate the course select knob
to
position
the course pointer to the desired
VOR
course
8. The VOA deviation bar represents the
selected course
and
the
relat1onsh1p
of
this
bartothe symbolicaircraft
In
thecenter
of
the
instrument visually presents the actual rela-
ltonship
of
the selected course to your air-
craft heading.(In
other
words, if the symbolic
aircraft
on
the displayindicatesapproaching
the devialton bar at 45°, that is the angle at
which your aircraft
is
actually approaching
the selectedcourse.)
9.
To
prepare for an ILS approach, tune the
NAV receiver to the desired Localizer fre-
quency.
If
a usable Localizer signal is being
received. the NAV warning flag will disap-
pear.
10. For a front or
back
course approach, ro-
tate the course select knobto set the course
pointeron the inbound Localizer course.
As
with normal navigahon
(#6
above), the LOC
deviation barrepresents the desired course.
The relationship between this
bar
and
the
symbolic aircraft
gives
a true picture of your