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10
5
RPM
0 1
2
3
4
ALT
6 5
7
8
9
VSI
20
20
5 15
10
10 15
5
40
60
80
120 100
140
160
T&B
L R
Air Exercise
• Descent
Primary instruments of
interest
AH, ASI and DG
Secondary instruments of
interest
ALT, VSI and T&B
• Climb
Primary instruments of
interest:
AH, ASI and DG
Secondary instruments of
interest:
ALT, VSI and T&B
15 20 25
10
5
RPM
0 1
2
3
4
ALT
6 5
7
8
9
VSI
20
20
5 15
10
10 15
5
40
60
80
120 100
140
160
T&B
L R
Air Exercise
• Climbing / Descending
Turns
Primary Instruments of
interest:
AH, ALT, VSI
Secondary Instruments
of interest:
T&B and DG
• Inadvertent cloud entry
• Partial panel failure
– Compass turns
– Timed turns
15 20 25
10
5
RPM
0 1
2
3
4
ALT
6 5
7
8
9
VSI
20
20
5 15
10
10 15
5
40
60
80
120 100
140
160
T&B
L R
27
KR 87
KI 227
KS 227-00 shown, non-slaved, standard
KI 227-01 slaved, optional
323 2 31
ANT/ADF
Mode Annunciation
IN USE
Frequency
BFO
Annunciation
STANDBY
Frequency
Annunciation
STANDBY Frequency,
FLIGHT TIME or
ELAPSED TIME
Flight timer and
Elapsed timer
mode annunciation
ON/OFF/VOL
Control Switch
Select ANT mode
(out position)
Select ADF mode
(in position)
Frequency
Transfer
Button
Select FLIGHT
TIMER or
ELAPSED TIMER
Set and Reset
ELAPSED TIMER
Select
BFO
Button
Lubber
Line
Bearing
Pointer
Heading
Knob
“SYNC”
Knob
Compass
Card
Frequency
Select
Knobs
KI 228
Slaved KI 228-01 shown.
Standard KI 228-00 also
available with manually
rotatable compass card.
KI 229 KNI 582
ð
KR 87
Silver Crown ADF System
Operating the KR 87
28
Silver Crown Plus Pilot’s Guide
Turn-on
Rotate the ON/OFF/VOL knob
clockwise from the detented “OFF”
position. The unit will be activated and
will be ready to operate. Rotation of
this control also adjusts audio volume.
The KR 87 has “audio muting” which
causes the audio output to be muted
unless the receiver is locked on a valid
station.
Frequency Selection
The active frequency (to which the
ADF is tuned) is displayed in the left
side of the window at all times. A
standby frequency is displayed in the
right side when “FRQ” is annunciated.
The standby frequency is placed in
“blind” memory when either FLT (Flight
Time) or ET (Elapsed Time) mode is
selected.
With “FRQ” annunciated, the standby
frequency is selected using the frequency
select knobs which may be
rotated either clockwise or counterclockwise.
Pull the small inner knob out
to tune 1’s. Push the smaller inner
knob in to tune 10’s. The outer knob
tunes the 100’s and the 1000’s up to
1799.
The standby frequency selected
may then be put into the active window
by pressing the “FRQ” button. The
standby and active frequencies will be
exchanged (flip-flopped), the new frequency
will become active, and the former
active frequency will go into standby.
Operating Modes
Antenna (ANT) mode is selected
and annunciated when the “ADF” button
is in the “out” position. ANT provides
improved audio reception from the station
tuned and is usually used for identification.
The bearing pointer in the
KI 227 indicator will be deactivated and
immediately turn to the 90° relative
position and remain there during ANT
reception.
The ADF mode is selected and
annunciated when the “ADF” button is
in the depressed position. ADF activates
the bearing pointer in the KI 227
indicator, causing it to move without
hesitation to point in the direction of the
station relative to the aircraft heading.
　
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