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
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

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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.
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(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.
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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

GENERAL INFORMATION
During all navigation operations using single or dual KNS 660, KLN 88, KLN 90, KLN 90B, KLN 900 or GNS XLS Long Range Navigation Systems and your RDS 81, 82, 84, 86, ART 2000 or 2100 weather radar, the GC 360Agenerates radar displays that help you visualize your aircraft’s position with regard to important aspects of the flight. These include: the flight planned course; weather detected by the radar; navaids and pilot program­mable waypoints; and nearby air­port locations.
The GC 360A is also compatible with the KNR 634A Nav receiver and the KDM 706A or DM 441B DME only in the Nav 2 mode, though, and only with an LNAV as Nav 1. Area navigation functions are not available from the KNR 634A / DME combination, however, so radar graphics are limited to active navaids and radial course displays. The radar graphics unit receives aircraft heading informa­tion from the LNAV which must be operating for the GC 360Ato create Nav 2 graphics.
The joystick-controlled waypoint function of the GC 360A also requires the LNAV in order to oper­ate; therefore it cannot be refer­enced to the KNR 634A/ DME com­bination. Referenced information about nearby airports or navaids that are not part of the flight plan, or current winds, are also available only in modes coupled to the LNAV.
The GC 360A generates navigation data blocks that display the alpha identifier of the active waypoint (from the LNA V) or the frequency of the navaid in use (from the KNR 634A/DME), as well as heading, course and distance information. A series of dashes replaces any navi­gation information unavailable to the GC 360A.
Throughout all navigation opera­tions, Nav 1 data references appear on the radar indicator in cyan (light blue), with Nav 2 information in yel­low. Aircraft headings and active waypoints appear in white, as do course lines, which the GC 360A displays to any active waypoint that is not farther than 1024 nm away. Range scale numbers are dis­played in green.
Whenever the active waypoint can­not be displayed on the radar indi­cator due to distance or relative bearing with the GC 360Aoperating in its sector mode, an off-screen waypoint indicator will appear as an arrow at the bottom of the indicator, next to the waypoint’s identifier. Eight pointer positions, spaced 45˚ apart, are possible, so the arrow’s sensitivity should be considered as +/-22.5˚. The off-screen waypoint indicator does not appear when the GC 360Ais operating in its 360˚ cir­cle mode; instead, refer to the color­coded RMI dot for waypoint bearing information.
The radar graphics unit employs three different symbols to indicate the nature of navigation references.
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NAVIGATION GRAPHICS

If the waypoint is a navaid, a Vortac symbol ( ) appears. If it is a pilot­programmed point in space, a four­pointed star ( ) is used. Across ( ) symbol indicates that the waypoint is an airport.
At any time the mode selector is set to a position that requires informa­tion from a navigation sensor that is turned off, or when the GC 360A’s mode selector is set to Standby and the radar is operating in its Nav Map mode, a yellow “No Nav” annuncia­tor will appear in the position on the radar indicator normally occupied by that sensor’s data block. For example, if no navigation sensor is coupled to the GC 360A’s Nav 2
channel, “No Nav” appears in the appropriate positions on the indica­tor with the radar graphics units set to the Nav 2 or BOTH modes.
Throughout radar graphics opera­tions, it is the pilot’s responsibility to ensure that navigation graphics do not interfere with interpretation of weather depicted by the radar.
You can declutter the screen selec­tively by deactivating pilot-selec­table display functions such as Reference, Wind or course line graphics; or all at once by setting the GC 360A’s mode selector to Standby.
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GRAPHICS FROM A SINGLE NAV

Aircraft Heading Course Line
Joystick Waypoint Position Data
Map Track Line Deviation
Map Track Line
Waypoint Cursor
Flight Plan Course
Off-screen Waypoint Indicator
With the radar operating in a weath­er mode and the GC 360A set to Nav 1, navigation graphics appear in the format shown above.
Graphics related to Nav 2 inputs are identical to Nav 1 formats, but the
information appears in yellow rather than cyan. Also, the white Nav 2 course line is dashed rather than solid. Selecting the radar’s Standby mode clears the indicator of all weather related information, includ­ing the antenna tilt annunciator.
Select the BOTH mode to view nav­igation graphics from Nav 1 and Nav 2 sensors simultaneously. Since this NAV mode requires the weather radar to be n standby mode, weather information will not be displayed along with the naviga­tion graphics. Data blocks contain­ing waypoint name, bearing and distance information appear in the same format as during single nav operations. The current HSI course now appears above the appropriate navigation sensor’s data block. Information about the active Nav 1 waypoint appears on the left side of the screen, in cyan, with Nav 2 data on the right, in yellow.
90˚ SCAN RADARS
When installed with the 90˚ scan RDS 81, 82 or ART 2000 weather radar, the navigation data blocks generated by the GC 360A appear in the same format in both 90˚ sec­tor and 360˚ circle modes. In single nav modes, the flight-planned course and waypoint name, bearing and distance information appear in the lower right corner of the radar indicator. With the GC 360A set to BOTH, navigation data from the two sensors appear in the indicator’s lower opposite corners.
10

DUAL NAV OPERATIONS

Station Bearing
(NAV 1)
Wind Direction Indicator
Wind Speed Annunciator
NAV 2 Data (Yellow)
Reference Annunciator
NAV 1 Data (Cyan)
Station Bearing (NAV 2)
360˚ circle mode selected
In any of the three navigation modes, the GC 360A offers a vari­ety of pilot-selectable functions designed to assist in navigation decision-making and altering pro­grammed flight plans while en route. Basic control information is included in “Modes and Functions” on page 4. Following are amplified descriptions of the GC 360A’s more powerful functions.
1. Cursor Check-Off Removes and replaces Nav 1 and
Nav 2 course lines on the radar screen. Also summons the LNAV’s waypoint page and sends it lat/lon information when the joystick-con­trolled waypoint Joystick Waypoint is on the radar screen.
2. Reference Collocated with the cursor position
keys, the Reference keys com­mand the GC 360A to display on the radar indicator up to 10 Vortacs, VOR/DMEs and Tacans near the aircraft’s position.
As with cursor position control dur­ing checklist operations, the Reference key is “circular”. Pressing the Reference “up” key once causes the GC 360A to dis­play nearby high-altitude, low-alti­tude and terminal navaid refer­ences on the indicator. Pressing the
Reference “up” key a second time removes terminal navaids from the indicator; a third press removes low-altitude navaids, while pressing the Reference “up” key a fourth time clears the indicator of all reference navaids.
The Reference “down” key oper­ates in the same manner, but steps through the navaid sequence in the opposite order.
The Reference function generates a small green annunciator, in the form of the letter “R,” with one, two or three dashes stacked vertically to its immediate left to show whether high altitude, high and low-altitude, or high-altitude, low-altitude and ter­minal navaids are on the screen.
3. 360˚ Circle Display The 360˚ key shifts the radar dis-
play from a sector scan to a full cir­cle, and back again, allowing you to view navigation data in all quad­rants. Weather information remains limited to its normal 90˚ or 120˚ scan. A large, color-coded dot ­cyan for Nav 1, yellow for Nav 2 ­will appear on the compass circle to mark the current RMI bearing to the active waypoint. The GC 360A must be shifted to the 360˚ circle display to show wind information.
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NAVIGATION FUNCTIONS

4. Wind Displays wind velocity at present
position and altitude. The Wind function is available only with the GC 360’s 360˚ circle function acti­vated.
To view the current wind speed and direction, press the Wind key once. A solid green square on the com­pass rose will show wind direction, and wind speed will appear in green digits beneath a “WS” annunciator on the right side of the radar indica­tor. Press the Wind key again to view headwind (HW) or tailwind (TW) components. Pressing the key a third time removes wind graphics from the radar screen.
5. Joystick Waypoint You may position the joystick way-
point any place on the radar screen, including behind the aircraft’s pre­sent position if the GC 360A is dis­playing its 360˚ circle format, any time you want to alter the flight plan with reference to information on the radar screen. Moving the joystick control for a moment causes the waypoint cursor to appear; holding it in any of its eight positions, spaced 45˚ apart, moves the cursor in that direction. Waypoint lat/lon coordinates, displayed in white next to the “Cursor” annunciator at the bottom of the radar indicator, will change accordingly.
During operations in the BOTH mode with dual LNAV installations, you may reference the Waypoint cursor to either Long Range Navigation System by pressing the GC 360A’s Name/Index key. Waypoint cursor coordinates will
appear on the radar screen in the corresponding data block-left for Nav 1 and right for Nav 2.
With the Waypoint cursor in the desired position, pressing the cur­sor check-off key transfers its coor­dinates to the LNAV. A waypoint page will appear automatically on the LNAV Display, with the identifier “O” in the case of the KNS 660, KLN 88, KLN 90, KLN 90B or KLN
900. The GNS-XLS identifies the first waypoint received from the GC 360A as “EX#01”, the second as “EX#02”, etc. The LNAV does not automatically insert the joystick waypoint into the flight plan; instead, you must use the normal waypoint insertion procedures for the particular LNAV being used.
Of course, if you want to proceed direct to the joystick waypoint, you may do so by using the LNAV’s Direct-To function. The GNS-XLS automatically switches to Direct-To mode upon receiving the joystick cursor coordinates from the GC 360A.
You may erase the Waypoint cursor at any time before its coordinates have been transferred to the LNAV by pressing the GC 360A’s Cancel pushbutton.
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6. Course Deviation Bar While navigating with the LNAV, the
GC 360A generates a color-coded course deviation bar beneath the appropriate navigation data block. With a KNS 660, KLN 88 or KLN 90 interface, each mark right or left of center equals 1NM for enroute mode and 0.25NM for approach mode. With a KLN 90B, KLN 900 or GNS-XLS interface, each mark right or left of center equals 1NM for enroute mode, 0.2NM for terminal mode, and 0.06NM for approach mode. When the deviation bar is flagged, it extends the full distance both left and right of center-to indi­cate its inoperative status.
7. Nearest Airports Although not strictly a function of
the radar graphics unit, the GC 360Aallows you to display the loca­tions of the nearest airports in the LNAV’s data base. The airport sym­bols and alpha identifiers appear automatically on the radar indicator whenever you select the LNAV’s Nearest Airports function.
8. Map Track The radar trackline function can be
used to measure angular course deviations, when operating in a non standby radar mode. This may assist positioning the Joystick Waypoint cursor on the indicator. The trackline will rotate left or right by pressing the appropriate key. The trackline will extinguish auto­matically after approximately fifteen (15) minutes.
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14
On an IFR flight from Pal-Waukee Airport, near Chicago, to Dallas-Love Field, you have received the following clearance from Air Traffic Control: “Cleared to Dallas-Love Field. After takeoff expect vectors out of the local area, then direct Bradford, via J105 to Razorback, then direct Blue Ridge.” You have pro­grammed your LNAV with the following flight plan:
1: KPWK (Pal-Waukee Airport) 2 BDF (Bradford Vortac) 3: SGF (Springfield Vortac) 4: RZC (Razorback Vortac) 5: BUJ (Blue Ridge Vortac) 6: HOLTS (arrival fix) 7: WEDER (arrival fix) 8: KDAL (Dallas-Love Field)
After takeoff from Pal-Waukees’s Runway 16, you receive a vector heading of 265˚ to maintain separation from traffic bound for Chicago O’Hare to the south. Several minutes later you are cleared direct to BDF. Your aircraft is now at Position 1 on the chart illustration. The deviation bar extends full-scale to the left to show the aircraft is at least five miles right of course, while the large cyan dot on the compass rose display shows the cur­rent bearing to BDF.
Select the LNAV’s Direct-To function and proceed to BDF. A new course line appears on the radar indicator, direct to the Vortac from the aircraft’s present position.

RADAR GRAPHICS ON A SAMPLE FLIGHT

© JEPPESEN SANDERSON, INC.
ALL RIGHTS RESERVED.
NOT FOR NAVIGATION
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En route and 124 DME from the Springfield Vortac, at Position 2, you press the GC 360A’s Reference “up” key once to view nearby high-altitude, low-altitude and ter­minal navaids, signified by the three dash­es next to the “R” annunciator. The Vichy (VIH), Jefferson City (JEF), Hallsville (HLV), Foristell (FTZ), St. Louis (STL), Macon (MCM) and Quincy (UIN) Vortacs appear on the screen. The course devia­tion bar indicates the aircraft is some 2.5 miles right of course.
© JEPPESEN SANDERSON, INC.
ALL RIGHTS RESERVED.
NOT FOR NAVIGATION
16
Upon reaching SGF (Position 3) you discover rain shower activity between your position and the Razorback Vortac. Your planned course runs through some of the heaviest precipitation indicating a rough ride is possible.
Using the joystick-controlled Waypoint function, you decide that a deviation to the left, to a lat/lon posi­tion of N36˚43.2’/W93˚14.9’, will keep you clear of the weather.
To make the Joystick Waypoint the next active waypoint in your flight plan, press the cursor check-off key to transfer its coordinates to the LNAV’s waypoint page. Then, using the normal procedure for your LNAV, insert the Joystick Waypoint in your flight plan between SGF and RZC. The LNAV will accept the new coor­dinates as the active waypoint instead of RZC.
© JEPPESEN SANDERSON, INC.
ALL RIGHTS RESERVED.
NOT FOR NAVIGATION
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At the deviation waypoint (Position 4) you request ATC for clearance direct to the Blue Ridge Vortac in order to speed your flight. With permission granted, you activate the LNAV’s Direct-To function once more to cre­ate a new course line direct to BUJ, leaving the Razorback Vortac to the west. The new course line allows you to monitor your aircraft’s progress.
At Blue Ridge (Position 5) you press the GC 360A ’s Name key, if the way­point names are not already being displayed, to identify the arrival fixes into Dallas-Love Field. HOLTS appears in white to signify that it is the active waypoint.
© JEPPESEN SANDERSON, INC.
ALL RIGHTS RESERVED.
NOT FOR NAVIGATION
GENERAL INFORMATION
In addition to its primary role as a navigation data interface between your Long Range Navigation System and weather radar, the GC 360A can maintain a library of your aircraft’s normal and emer­gency checklists. Afew simple con­trol functions enable you to step through checklist information, line by line or several lines at a time, while checking off line items or leav­ing them for review at a later time. The procedures are exactly the same whether operating in normal or emergency checklist modes.
The GC 360A’s independent mem­ory contains room for 935 lines of checklist information, which it divides between normal and emer­gency checklist modes as neces­sary during programming. The memory is nonvolatile: removing the aircraft power supply, or even removing the GC 360A from its bracket and couplers, will not affect it.
The GC 360A can be programmed with checklist information at a qual­ified AlliedSignal service center, or you may program the system your­self with the optional KA 68 or KA 68A Pocket Terminal. The pocket Terminal provides you with the flex­ibility of being able to create new checklists or modify existing infor­mation whenever necessary, such as when adding new equipment or changing flight procedures (see “Programming,” page 21).
Throughout checklist operation, five color codes describe the status of individual line items.
Magenta, yellow and green color codes change in response to your use of the GC 360A’s cursor check­off and cursor position keys described in “Modes and Functions,” on page 4. Line items that appear in white or cyan cannot be altered directly. Cyan-colored messages are always system annunciators—the GC 360A’s mes­sages for you—and display infor­mation such as “End of List” or “Out of Memory.”
Pressing either the check-off key or a cursor position key will move the cursor highlight on the radar screen.
Pressing the check-off key also will change the color code of an unchecked line item to green indi­cating that it has now been checked off.
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RUNNING CHECKLISTS

ACTIVATING CHECKLISTS
The checklist Index page automati­cally appears on the radar screen when you select either normal or emergency checklist modes. It pro­vides the name of every checklist available in that mode. You may return to the Index page at any time by pressing the GC 360A’s Index key.
When the Index page first appears on the screen the cursor highlight will be positioned on the first check­list name on the list. If that is the checklist you want to run, press the cursor check-off key to summon it from the system’s memory. Otherwise, use the cursor position keys to highlight the appropriate checklist and then press the check­off key to bring it to the screen. The checklist will appear under its iden­tifying header line, with the cursor highlight on the first item to be checked. All other line items will appear in magenta to indicate their unchecked status.
EXECUTING CHECKLISTS
Checking off the highlighted check­list item with the cursor check-off key changes its color code to green and repositions the cursor to the next magenta line item in sequence. You may step through the checklist in order by succes­sively checking off items with the key, or you may run the checklist in any order you want by repositioning the cursor with the position keys.
Pressing the cursor check-off key upon reaching the end of a checklist relocates the cursor to the first unchecked line item on the list. Press the check-off key again if you want to check off the item and pro­ceed to the next unchecked line. Otherwise you may use the cursor position keys to move the cursor a single line at a time, regardless of color coding. It is not possible to highlight either a white header line or a cyan system annunciator with the cursor.
After all line items in a list have been checked off, the index page reappears on the screen. The cur­sor automatically highlights the next checklist in sequence.
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Returning a checklist to memory by pressing the Index key also restores it to its original, unchecked condition; the next time you select it, the contents will appear as magenta line items with the yellow cursor highlight on the first one. If you want to review a completed checklist before it disappears from the screen, use the Page function or the cursor position controls before you check off the final line item.
With the Index back on the screen you may activate any other check­list in the memory. To activate the checklist immediately following the one you just completed, simply press the cursor check-off key. Otherwise, use the cursor position keys to select another checklist.

IF YOU GET INTERRUPTED

You may pause at any time during checklist execution to operate the weather radar or the graphics unit in any other mode, such as Test, weather surveillance or any naviga­tion mode, without disturbing the active list. When you return the mode selector to the original posi­tion, the active checklist will reap­pear on the screen in current form. You may even activate and run checklists in the other checklist mode-LST or EMER-without alter­ing the condition of the first active list. Remember, though, if you return the checklist to the system’s memory by pressing the Index key, all of the line items will be restored to their original, unchecked status.
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For programming normal and emer­gency checklists into the GC 360A ’s memory , the KA 68 or KA 68A Pocket Terminal combines all nec­essary functions in a controller the size of a pocket calculator. Optional equipment with the radar graphics unit, the KA68/KA 68A enables you to:
1. program new normal and emer­gency checklist information;
2. erase old, obsolete or incorrect information;
3. update checklists already stored in memory, for example, after
adding new equipment to the air­craft.
The KA 68/KA 68A Pocket Terminal programs checklist information only . It cannot be used to program navi­gation or route information, or as a substitute for the LNAV’s keyboard.
The GC 360A’s programmable memory can store up to 935 lines of checklist information. You may either follow the format in your air­craft’s pilot operating handbook or create your own. However, please note the following disclaimer:
Contents of checklists are the responsibility of the user/installer.
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PROGRAMMING

Each line of checklist information may be up to 30 characters in length, and entries up to 13 lines long are acceptable. Checklist names, however, are limited to one line of 27 characters each. You may divide the memory capacity between normal and emergency modes in any way you choose, sim­ply by positioning th GC 360A’s mode selector to LST or EMER during programming: other than the total storage limit, there is no maxi­mum amount of information either checklist mode can hold.
It is unlikely that you will ever need to program more checklist informa­tion than the GC 360Acan hold, but you should note that checklist names in the Normal or Emergency Index each count as one full line of system memory. The GC 360A does not differentiate between full and partial lines, but counts each as one complete line. Header lines on checklist pages and “End of List” annunciators do not count as lines of memory. If you do fill all 935 lines, a cyan “Out of Memory” annunciator appears on the radar indicator, and the GC 360A will not accept any more checklist informa­tion until you clear space in the memory.
The KA68 / KA68A keyboard is divided between regular and shad­ed/blue functions. To enter the number or letter displayed in black, simply press the corresponding key . To enter a shaded/blue character, press the Shift key located in the upper left corner of the keyboard, and then the appropriate character key.
In addition, the KA68/KA 68A offers
three Special Functions, described below.
The following characters listed on the keyboard are not available for use.
They are: [ ] \. Also, the following functions unique
to the KA 68 have no assigned use: SL4, SR4, Rpt, Clr, Cu, Cu>, LF, LHome, RHome and Nul. Selecting any of these characters or functions will have no effect on checklist con­tent.

WRITING CHECKLISTS

1. With the weather radar set to Standby and the KA 68/KA 68A phone plug inserted into the jack on the GC 360A’s faceplate, select either √LST or EMER with the radar graphics unit’s mode selector. The appropriate Index page will appear on the radar indicator.
2. To create a new checklist name, select the appropriate location in the index list. For a new index which has no previous entires, the first location in automatically selected. To add a new checklist to an exist­ing index, move the cursor to the checklist name directly above the new location. If the new checklist location is at the top of the index, move the cursor to the off screen position. When the correct location has been determined, write the new checklist name by pressing the appropriate keys on the KA 68/ KA 68A. To store the new name in the system memory, press the car­riage return key. The cursor will automatically highlight the newly written name.
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3. Press the cursor check-off key to gain access to the new checklist. It will appear as a blank page topped by a white header line and followed by a line which reads “END OF LIST”. Now you are ready to write a new checklist. At your option, rather than pressing the check-off key after naming a new checklist, you may instead continue to enter new names before calling blank checklist pages to the screen.
4. Program the new checklist by pressing the appropriate terminal keys, and by activating Carriage Return to terminate each checklist item. If a checklist item is longer than one line, you can make it more readable by indenting subsequent lines three to five spaces each, by using the Sp key. Activate Carriage Return only after a checklist item is complete, as using it causes the GC 360A to initiate a new line item with the next keystroke.
If you discover you’ve left some­thing out while writing a checklist, use the GC 360A’s cursor position keys to insert a new line. The pro­cedure is the same as for writing a new checklist name on the Index page: move the cursor to the line item you want to appear directly before the new one and key in the new checklist information. To cor­rect typographical errors or to erase checklist information, refer to Deleting Text.
5. When you’ve finished program­ming the new checklist, or to return to the Index at any time, press the Index key on the GC 360A or press the Control key and then the “I” key on the KA 68/KA 68A (see Special
Functions). The Index page will appear with the cursor highlight on the new checklist name.
6. Press the check-off key to return to the first page of the checklist if you want to review it. To continue programming new checklists, return to the Index page and enter a new checklist name or position the cur­sor on an already existing name and press the check-off key to gain access to that checklist.

DELETING TEXT

The Delete function (Del) shares the same key on the KA 68/KA 68A as the numeral five. To delete:
1.
a single character
-press the Shift key and then the Del key, prior to activating Carriage Return. You cannot delete a single character within a checklist line after activat­ing the carriage return. The line item must be deleted and reentered.
2.
a checklist line item
-move the cursor to highlight the appropriate line item (or press CR if current checklist line is to be deleted), then press Shift and Del.
3.
an entire checklist
- with the cur­sor highlight on the appropriate checklist name on the Index page, press Shift and Del.
To correct checklist errors or to add new information, use the cursor position controls in combination with the Deleting Text functions and the standard checklist writing proce­dures. A new line item always begins immediately following the line item highlighted by the cursor.
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Physical Dimensions:
Width . . . . . . . . . . . . . .6.400 inches (16.26 cm)
Height . . . . . . . . . . . . . .1.350 inches (3.43 cm)
Depth . . . . . . . . . . . . . .13.451 inches (34.17 cm)
Weight . . . . . . . . . . . . .3.5 pounds (1.6 kg)
Maximum Altitude: 50,000 feet Temperature Range: -20˚C to +70˚C (-4˚F to 158˚F) Power Requirement: 2.2A peak; .33A nominal TSO Compliance: FAATSO-C105/EUROCAE ED-14A
RTCA DO-160A Env Cat A2D1/A/KPS/XXXXXSA/B/AB/B/A

SPECIAL FUNCTIONS

1.
Cursor Check - Off
- As an option to using the GC 360A’s cursor check-off key, you may duplicate its function by pressing the Control key and then the letter C.
2.
Index Recall
-Instead of pressing the GC 360A’s Index key, you may view the Index page on the radar indicator by pressing Control and the letter I.
3.
Memory Erase
-You may erase the entire 935 line memory shared by the normal and emergency checklist modes by pressing Control and then the letter X.
A query prompt will appear on the radar screen to ensure that you haven’t made a mistake. If you respond by pressing the Y key the entire system memory will erase. Press the N key if you want to pre­serve memory content.
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SPECIFICATIONS

AlliedSignal, Inc. Electronic & Avionics Systems 400 North Rogers Road Olathe, Kansas 66062-1294 FAX:913-791-1302 TELEPHONE: 913-782-0400
006-08412-0000 Rev.1 10/97
a
Printed .5K 5/98 CW
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