BendixKing GC 360A User Manual
GC 360A
Radar Graphics Interface for Weather Radar
and KNS 660, KLN 88, KLN 90,
KLN 90B, KLN 900, and GNS XLS
Pilot’s Guide
1
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Systems Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Modes and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Navigation Graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Graphics from a Single NAV . . . . . . . . . . . .9
Dual NAV Operations . . . . . . . . . . . . . . . .10
Navigation Functions . . . . . . . . . . . . . . . . .11
Radar Graphics on a Sample Flight . . . . .14
Running Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Activating/Executing Checklists . . . . . . . . .19
If You Get Interrupted . . . . . . . . . . . . . . . .20
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Writing Checklists . . . . . . . . . . . . . . . . . . .22
Deleting Text . . . . . . . . . . . . . . . . . . . . . . .23
Special Functions . . . . . . . . . . . . . . . . . . .24
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Designed to be a powerful navigation tool, the Bendix GC 360A
Radar Graphics Unit generates a
moving-map display on your weather radar indicator, showing your
position with respect to the flightplanned course and waypoints,
nearby airports and navaids, and, of
course, weather. It continuously
updates the graphic picture of your
aircraft’s position over the ground,
making it easy to visualize the precise navigation situation.
During flight the GC 360A allows
you create new waypoints directly
on the radar screen, incorporating
them into the flight plan with the
LNAV. Course deviations due to
weather or ATC requests can
become easier to fly with positive
course guidance provided by the
GC 360A’s joystick-controlled, waypoint feature.
The radar graphics unit is compatible with dual LNAV or with a single
LNAV as Nav 1 and a King Gold
Crown KNR 634A Nav/KDM 706A
or DM 441B DME combination as
Nav 2. It can generate radar displays for a variety of information
computed by the LNAV, including
locations of waypoints in the flight
plan, course lines, nearby airports
and navaids, and real-time wind
data. Interfaced with a KNR 634A
Nav/KDM 706A or DM 441B DME
combination, the GC 360A can display secondary navaid position and
radial guidance graphics in the Nav
2 and BOTH modes.
By presenting navigation informa-
tion in a simple and clear format,
the GC 360A can help you determine solutions to navigation problems you otherwise might not see,
providing a valuable complement to
any Bendix RDS 81, 82, 84, 86,
ART 2000 or 2100 weather
radar/King KNS 660, KLN 88, KLN
90, KLN 90B, KLN 900 or GNS XLS
installation.
The GC 360A also provides checklist features that enable you to run
normal and emergency checklists
on your weather radar indicator.
The graphics unit’s nonvolatile
memory contains room for 935 lines
of information, generally enough for
any aircraft’s entire checklist library
plus tables of information such as
emergency or best-performance
airspeeds and aircraft weight-andbalance. During checklist operation
its color coding systems helps you
keep track of checked and
unchecked items, providing status
markers for when you need to leave
the checklist to operate the GC
360A temporarily in any other
mode.
This GC 360A Pilot’s Guide is
designed to acquaint you with the
radar graphics unit’s functions and
controls and to show ways to use it
as a navigation tool. After reviewing
this Guide and practicing radar
graphics operations in your aircraft
for a little while, you should begin to
have an understanding of how to
use the GC 360A to its best advantage, giving you the maximum
return on your investment in
AlliedSignal avionics.
2
INTRODUCTION
3
Bendix RDS 81, 82, 84, 86,
ART 2000 or 2100
Weather Radar Indicator
SYSTEM COMPATIBILITY
This GC 360A Pilot’s Guide
assumes that the operator is
already proficient in basic operation
of the Long Range Navigation
System and weather radar. If not,
refer to their respective Pilot’s
Guides for operating instructions.
The navigation information presented by the GC 360A is not to be
used for primary navigation.
Contents of the checklists are the
responsibility of the user/installer.
(1) MODE SELECTOR
Activates any of the GC 360A’s six
modes of operation. With the mode
selector in the OFF position, the
radar graphics unit is inoperative.
The radar is capable of displaying
weather/ground surveillance information only.
Selecting either √LSTor EMER prepares the GC 360A to run aircraft
checklists programmed with the KA
68 or KA 68A Pocket Terminal (see
Programming, page 21). When you
select a checklist mode, with the
weather radar operating in Standby ,
the GC 360A displays the appropriate Index page and assigns checklist functions to the five pushbutton
controls on the left half of the faceplate.
While programming checklist information with the Pocket Terminal,
use the mode selector to store
checklists in either the normal or
emergency checklist memory.
Select the Standby mode to erase
all Nav graphics temporarily from
the screen whenever you want an
unobstructed view of the weather
ahead. You may also select
Standby prior to aircraft shutdown
and remove power from the GC
360A with the avionics master
switch.
Activate any of the three navigation
modes to display navigation graphics on the radar screen. These
modes also assign navigation functions to all controls on the radar
graphics unit’s faceplate. The GC
360A must be interfaced to either a
LNAV or a KNR 634A navigation
receiver and a KDM 706A/DM 441B
DME as Nav 2 to generate graphics
in the Nav 2 or BOTH modes.
(2) KA 68 PHONE PLUG
RECEPTACLE
Used during programming only, to
connect the Pocket Terminal to the
GC 360A.
4
MODES AND FUNCTIONS
(3) CURSOR CHECK-OFF KEY
In any navigation mode, the checkoff key has two primary functions.
During normal course plotting, it
alternately removes and replaces
the course line on the radar screen.
The waypoints, though, remain in
view continuously . When establish ing a temporary waypoint with the
joystick, pressing the check-off key
“freezes” its lat/lon coordinates,
transferring them to the LNAV’s
waypoint data page, allowing you to
insert it in your flight plan.
With the GC 360A in a checklist
mode, pressing the check-off key
activates the line item highlighted
by the cursor. If an index page is
displayed, operating the check-off
key will call to the screen the highlighted checklist. If a checklist page
is on the screen, the key will check
off the highlighted item, changing its
color code to green, and reposition
the cursor on the next unchecked
line item.
(4) CURSOR POSITION /
REFERENCE KEYS
Reposition the cursor up or down,
without altering line item color
codes, in checklist modes. You
may select checklists to run or pass
over line items without checking
them off.
It’s helpful to think of the cursor as a
“circular” function, with one offscreen position. In some cases you
can reference a line item more
quickly by moving the cursor up
past the top of a checklist to the
opposite end.
Upon reaching the bottom of a list,
pressing the cursor down key
removes the yellow highlight from
the radar screen. Pressing it again
causes the cursor to reappear, at
the top of the first page of the
checklist in use. You may also
remove the cursor from the radar
screen from the top of a checklist
and have it reappear at the bottom
by using the cursor up key.
The reference function is available
in any navigation mode, and
enables the radar graphics unit to
display nearby DME-equipped
navaids (Vortacs, VOR/DME’s,
Tacans) whose position is currently
being monitored by the LNAV. It
can distinguish between high-altitude, low-altitude and terminal
navaids.
(5) INDEX/NAME KEY
Displays the appropriate index
page on the radar indicator in either
checklist mode, with the cursor
highlighting the checklist currently
in use. Pressing the IDX key also
restores the checklist in use to its
original, unchecked form.
The name function is available in
the navigation modes. It alternately
removes and displays the names of
all waypoints on the radar screen.
Waypoint numbers, though, appear
continuously with a KNS 660, KLN
88 or KLN 90 interface. Waypoint
numbers will not be displayed with a
KLN 90B, KLN 900 or GNS-XLS
interface.
5
(6) PAGE KEY
Permits fast review of checklist and
index pages. Press the Page key to
display pages in consecutive order,
returning to the first immediately
after displaying the last. Keying
Page does not move the cursor
position.
(7) WIND KEY
While using the LNAV in flight, you
may view current wind speed and
direction with the GC 360A operating in the 360˚ circle mode. The
wind function displays total wind
velocity, direction and headwind /
tailwind component.
(8) 360˚ KEY
Shifts the navigation map display
into and out of the circle mode. A
full compass rose appears on the
radar screen with a white delta at
top indicating present heading.
Navigation graphics may appear at
any point within the compass circle,
but weather information is restricted
to its normal 120˚ (or 90˚) sector
display. A large color coded dot cyan for Nav 1, yellow for Nav 2 will appear on the compass circle to
mark the current bearing to the
active waypoint.
(9) CANCEL PUSHBUTTON
Removes the Disclaimer message
from the radar screen. In navigation
modes, pressing the Cancel pushbutton erases graphics related to
joystick operation.
(10) JOYSTICK CONTROL
Creates a temporary waypoint that
can be used to route around hazardous weather or to comply with
ATC requests. Moving the joystick
for a moment, and then releasing it,
displays the GC 360A’s Waypoint
cursor at the center of the radar
screen, along with the corresponding lat/lon position in the lower right
corner and a “cursor” annunciator to
its left. By moving the joystick in the
appropriate direction, and holding it
in place, you may relocate the temporary waypoint to any position on
the radar screen, whether the normal sector display or 360˚ circle
mode is active.
The joystick control has no checklist-related function.
6
To begin radar graphics operation,
rotate the GC 360A ’ s mode selector
clockwise to the desired position
after turning on the aircraft’s master
and avionics master switches. With
the mode selector set to any position other than Off or Standby, and
the radar operating in a weather
mode or in Standby, the following
disclaimer message will appear on
the radar screen:
The disclaimer will extinguish by
itself after approximately 20 seconds of display. Also, it may be
removed at any time by pressing th
GC 360A’s Cancel pushbutton.
You may also interrupt the disclaimer message before its display
time has elapsed by turning the
mode selector to Standby. In that
case, repositioning the selector to
any other position but Off will recall
the disclaimer to the screen for the
balance of its 20 second display
period, after which it will extinguish
automatically. Again, press the
Cancel button at any time to clear
the disclaimer from the radar
screen.
During aircraft shutdown periods,
you may leave the mode selector
set to Standby and remove power
with your aircraft’s avionics master
switch. As with all avionics, it is
good practice to make sure that no
power is reaching the GC 360Aduring engine startup or shutdown.
Certain radar graphics modes EMER, √LST and BOTH, as well as
the GC 360A’s 1000 nm range navigation map - require that the radar
be set to Standby. If the radar is
operating in a weather mode with
the GC 360A’s mode selector set to
any of these modes, a “SELECT
SBY” annunciator will appear on the
radar indicator next to the Standby
selector. No weather information is
available when the radar is operating in Standby.
As a reminder that the weather
radar must be operating in the navigation map mode to display nav
graphics from the GC 360A, a white
“Push Nav” annunciator appears as
necessary, adjacent to the radar’s
Nav Map key.
7
BASIC OPERATION
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