JB Panels 777 FMS For Microsoft Flight Simulator X SP2
JB Panels 777 FMS For Microsoft Flight Simulator X SP2
for
Microsoft Flight Simulator X SP2
The Flight Management System (FMS) provides flight planning and control functions as
well as access to navigational data contained in the FSX GPS database.
The FMS operates on a FSX flight plan using the FSX GPS for lateral navigation and
flight plan waypoint modifications. It also computes and controls a vertical flight path
for the flight plan and provides speed control and throttle management.
The 777 FMS is an integrated component of the JB Panels 777 panel. It is designed to
interact with the 777 panel components to provide flight management and control
functions. It will not operate as a stand alone unit.
This document provides a description of the features and operation of the FMS. Refer to
the JB777 Sample Flight document (JB777SampleFlight.pdf) for a working example of
the FMS used to plan, control and monitor a flight.
Rev 1.08 1
Table of Contents
1.FMS Operation........................................................................................................................................3
2.Flight Phases...........................................................................................................................................3
3.Control Display Unit...............................................................................................................................5
4.IDENT Page............................................................................................................................................6
5.Index Page...............................................................................................................................................8
6.Position Pages.........................................................................................................................................9
7.Performance Initialization Page............................................................................................................10
8.Thrust Limit Page..................................................................................................................................11
9.Takeoff Page..........................................................................................................................................13
10.Approach Configuration Page.............................................................................................................15
11.Navigation Database...........................................................................................................................17
12.Flightplan Load...................................................................................................................................18
13.Route Pages.........................................................................................................................................19
Route Page 1........................................................................................................................................19
Route Waypoint Pages.........................................................................................................................20
14.Legs Pages...........................................................................................................................................21
15.Route Modifications............................................................................................................................21
Delete a waypoint. .........................................................................................................................21
Add (Insert) a waypoint. ................................................................................................................22
Add Pilot-Defined Waypoints.........................................................................................................24
Add a Coordinate Fix. ....................................................................................................................24
Add a Bearing Fix. .........................................................................................................................26
Add an Along Track Fix. ...............................................................................................................27
16.Speed and Altitude Restrictions..........................................................................................................29
Plan Review.........................................................................................................................................31
17.VNAV Pages.......................................................................................................................................32
18.Runway Approach Pages....................................................................................................................35
19.NAV/RAD Pages.................................................................................................................................40
20.Progress Pages.....................................................................................................................................42
21.Activate Flightplan Leg HOLD Page..................................................................................................43
22.FIX Direct-To Page.............................................................................................................................44
Cancel Direct-to Mode........................................................................................................................45
23.Flight Save..........................................................................................................................................46
Rev 1.08 2
1. FMS Operation
The FMS is loaded with a flight plan and performance data. Once loaded with the
necessary data, a vertical flight path is computed and the FMS is ready to provide lateral
and vertical guidance along the flightpath from departure to destination.
Automated control is provided through the autopilot and engaged via the LNAV and
VNAV controls on the mode control panel (MCP) located on the 777 glareshield.
Engaging VNAV also engages the autothrottle to provide automated speed control
according to speed data entered into the FMS.
2. Flight Phases
The FMS operates in four flight phases.
Flight Phases
Preflight The FMS is loaded with a FSX flight plan. Waypoints may be added or
deleted and speed and altitude constraints are entered.
Fuel reserves and cruise altitude are entered.
Thrust performance is selected.
A vertical flight path is computed.
Takeoff speeds are accepted or entered.
Climb Lateral navigation (LNAV) engages above 50 feet AGL.
Vertical navigation (VNAV) engages above 400 feet AGL.
Speed control engages above 2000 feet AGL.
Rev 1.08 3
The climb phase extends to the top-of-climb (T/C) when cruise altitude is
reached.
Cruise The cruise phase extends to the computed top-of-descent (T/D) point.
Cruise climb/descent may be initiated by modifying the altitude on the
MCP, or by entering a cruise altitude on the FMC VNAV or performance
pages.
Step climbs are computed and predicted based on fuel burn rates.
Descent The descent phase begins at the T/D and extends until one of the following
occurs:
• approach mode is engaged via the APP switch on the MCP and the
ILS localiser and glideslope signals have been acquired, or
• the missed approach procedure is initiated, or
• VNAV and LNAV are disengaged via the switches on the MCP.
Rev 1.08 4
3. Control Display Unit
The Control Display Unit (CDU) is the terminal used to interface with the FMS. Data is
entered via the CDU and status from the FMS is displayed on the CDU display.
CDU
Rev 1.08 5
4. IDENT Page
The IDENT page is the default page displayed on the CDU.
It displays database information and software revision level. The drag and fuel rate
correction parameters can be modified from this page.
Ident Page
Weight Toggle weight display units between pounds (LBS) and kilograms (KGS)
by pressing L4.
The default value is set according to the FSX general settings units of
measure. US System selects pounds, hybrid selects kilograms. Metric units
of measure is not recommended for use with this panel.
Drag Can be used to modify the climb and descent curves to better match a
specific aircraft model.
Enter a positive value to reduce predicted climb performance, increase
predicted descent rate.
Enter a negative value to increase predicted climb performance, decrease
predicted descent rate.
Fuel Flow Can be used to modify the predicted fuel consumption rate.
Rev 1.08 6
Enter a positive value to increase predicted fuel consumption rate. The
FMC predicts more fuel is required to reach the destination.
Enter a negative value to decrease predicted fuel consumption rate. The
FMC predicts less fuel is required to reach the destination.
To modify the Drag or Fuel Flow parameter:
1. Press R4 or R5 to highlight the parameter,
2. Enter the value,
3. Press R4 or R5 to modify the parameter,
4. Press EXEC to execute the change.
Enter Fuel Flow Factor
Rev 1.08 7
5. Index Page
The Index page allows access to the Ident, data entry, and NAV database pages.
Access the Index page by pressing the MENU key.
Index Page
Rev 1.08 8
6. Position Pages
Access the position pages by pressing L2 from the Index page.
Position Page
Rev 1.08 9
7. Performance Initialization Page
Access the Performance Initialization page by pressing the INT/REF key or L3 from the
Index page.
Performance Initialization Page
Rev 1.08 10
STEP SIZE Step size for the climb increment to calculate the optimum step climb
profile. The default value is the ICAO value of 4000 ft . Valid range is 0
to 9000 ft. When a value of 0 is entered, no step climbs are planned.
CRZ WIND Current wind reading. TBD.
CRZ CG Current center of gravity.
TRANS ALT Transition altitude. Above this altitude, use standard barometric pressure
altitude reading. Default value is 18000 ft.
Press L2 – L4 to select takeoff thrust limits. The corresponding Climb thrust limit is
selected. Press R2 – R4 to select climb thrust limits.
Rev 1.08 11
Select an assumed temperature derate by entering the temperature value on the
scratchpad, then press L1 to input the value.
The selected thrust limit displays on the the EICAS.
Thrust Limit Temperature Derate
When airborne, the thrust limit page displays the selected thrust limit mode.
Thrust Limit Page (Airborne)
Rev 1.08 12
9. Takeoff Page
Access the takeoff reference page by pressing L5 from the Index page.
The Takeoff reference page allows entry of takeoff flaps setting and takeoff gross
weight, then displays reference V-speeds for the settings.
Takeoff Reference Page
Reference V-speeds V-speeds Accepted
Rev 1.08 13
V-speeds are displayed as reference marks on the PFD speed tape.
Trim setting is displayed on the throttle quadrant.
PFD V-speed
Reference Marks Throttle Trim
Rev 1.08 14
10. Approach Configuration Page
Access the approach configuration page by pressing L6 from the Index page.
The approach page allows selection of landing flaps setting and corresponding reference
speed.
Approach Configuration Page
The weight used to calculate the landing reference speed setting is displayed and set in
L1. Default weight is current weight. To modify the weight enter the weight on the
scratchpad and then press L1.
To select a flaps setting, enter the flaps setting (20, 25 or 30) on the scratchpad then
press R4. Press EXEC to process the flaps speed setting. The LEGS page will update to
display the reference speed.
The flaps setting can be copied to the scratchpad by pressing R1, R2 or R3 for flaps
setting 20, 25 or 30 respectively.
Rev 1.08 15
Flaps Selection
Select to Scratchpad Modify if Desired, Input, and EXECute
The PFD indicates the selected approach flaps setting and reference speed when
descending.
PFD FLAPS/REF SPEED PFD REF SPEED Indicator
Rev 1.08 16
11.Navigation Database
The FSX GPS navigation database can be accessed from the INDEX page by pressing
R1, NAV DATA.
NAV DATA Select from Index Page Navigation Data Menu Page
A list of nearest Airports or NAV aides can be obtained by pressing the right select keys.
Information for a database entry accessed by IDENT can be obtained by pressing the left
select keys
Airport IDENT Info
Rev 1.08 17
12. Flightplan Load
A flightplan is loaded by using the FSX flight plan load menu, or from page 1 of the
Route pages.
A route cannot be created using the FMC, although individual waypoints can be added
to and deleted from an existing flightplan.
Flightplan Load From CDU
Rev 1.08 18
13. Route Pages
Access the Route pages by pressing the RTE key.
The ROUTE pages consist of a first page showing the origin and destination airport
followed by a variable number of pages listing the waypoints on the route.
Route Page 1
Route page 1 is displayed when the RTE key is pressed if there is no flightplan loaded.
Route Page 1
No Flightplan Loaded VHHH-VTBD Flightplan Loaded
To load a flightplan, enter the plan filename on the scratchpad (maximum 33 characters)
then press L4. A PLAN LOADED message will confirm the plan is loaded.
To save a flightplan, enter the plan filename on the scratchpad (maximum 33 characters)
then press R4. A PLAN SAVED message will confirm the plan is saved.
ORIGIN Departure airport ident. Not modifiable.
DEST Destination airport ident. Not modifiable.
RUNWAY Departure runway.
FLIGHT NO Flight number.
Rev 1.08 19
GATE Departure gate number, or parking identifier.
Gate number 20, for example, may be entered as GATE20, or just 20.
Specify a terminal and gate number as C20.
A parking location must be preceded by the word PARKING. For
example PARKING 20.
CO ROUTE Flightplan name.
LOAD PLAN Load a flightplan file.
SAVE PLAN Save a flightplan file. The Save Plan option appears after modifications
have been made to the plan.
Rev 1.08 20
14. Legs Pages
Access the Legs pages by pressing the LEGS key.
The LEGS pages contain the flightplan waypoints, distance and bearing to the next
waypoint, and set or predicted speed and altitude when crossing the waypoint.
The active waypoint, the next waypoint on the flight path, is shown in magenta with an
indicator '<' character next to it.
LEGS Page Approach Waypoints
Delete a waypoint.
A waypoint can be deleted by pressing the DELete key, then selecting the waypoint to be
deleted using R1 to R5 on the ROUTE pages or L1 to L5 on the LEGS pages. Or, a
waypoint can be selected then moved to an earlier position in the flightplan, deleting all
intermediate waypoints.
Rev 1.08 21
Delete Waypoint Using Delete Key
Rev 1.08 22
Input Waypoint and Select Insert Point Select From Duplicates
Rev 1.08 23
Add Pilot-Defined Waypoints
A waypoint that is not based on an identifier in the navigational database can be defined
in the following ways:
Coordinate fix A waypoint at a latitudinal and longitudinal position.
Bearing fix A waypoint at a bearing and distance from another waypoint in the
flightplan.
Along track fix A waypoint that is at a specified distance along the flightplan track
from an existing waypoint.
Rev 1.08 24
Examples of 5 character fix entries
Coordinate 5-character
entry
N20° W030° 2030N
N50° W120° 50N20
N10° E009° 1009E
N08° E150° 08E50
S20° E030° 2030S
S30° E160° 30S60
S48° W034° 4834W
S51° W170° 51W70
Rev 1.08 25
Add a Bearing Fix.
A bearing fix can be added from the LEGS pages only.
A bearing fix can be added by entering the flightplan waypoint identifier followed by the
true bearing from the waypoint and the distance, then selecting the point at which to
insert the waypoint using L1 to L5.
Format for entering a bearing fix is:
IDENT/BBB/DDDD
IDENT Waypoint identifier.
BBB Bearing from the IDENT in degrees.
DDDD Distance from the IDENT.
Rev 1.08 26
Add an Along Track Fix.
An along track fix can be added from the LEGS pages only.
An along track fix can be added by entering the flightplan waypoint identifier followed
by the distance, then selecting the waypoint using L1 to L5.
Format for entering an along track fix is:
IDENT/DDDD
IDENT Waypoint identifier.
DDDD Distance from the IDENT. A negative value defines a point along the track
before the waypoint. A positive value defines a point along the track after
the waypoint.
Along track fixes are useful for defining altitude and speed restriction at a specific
distance from a flightplan waypoint.
The following example adds an along track waypoint 40 nmiles from SIKOU. The new
waypoint is named SIKOU02.
Rev 1.08 27
The following example adds an along track waypoint 85 nmiles before SIKOU, It is
given the name SIKOU03.
Scratchpad Entry: SIKOU/-85
Along Track Waypoint 85 Nmiles before SIKOU
Pilot-defined waypoints are saved in the flightplan as “USER” waypoints. They can be
edited and view with the FSX Flight Planner after the flightplan has been saved.
Rev 1.08 28
16. Speed and Altitude Restrictions
Speed and altitude constraints may be entered for a waypoint in order to meet climb or
descent path restrictions.
On the LEGS pages, altitude and speed crossing restrictions are entered on the
scratchpad, then the right LSK next to the applicable waypoint is pressed to insert the
restriction into the flight-plan.
Format for entering a speed and altitude restriction is:
SSS/AAAAA - where SSS is indicated airspeed and AAAAA is altitude in feet.
A speed or altitude can also be entered individually. The FMS determines the type of
data entry as follows:
Rev 1.08 29
Altitude restrictions can be specified as at or below (eg 7000B), at or above (eg 7000A),
or at the specified altitude (eg 7000). Between altitudes is not currently supported.
Altitude Restriction Entry Speed and Altitude Restriction
Restrictions can be deleted by pressing the DEL key then pressing the line select key
(LSK) next to the applicable restriction to delete. If there are both a speed and altitude
restriction, the first LSK press deletes the speed restriction, a second LSK press deletes
the altitude restriction.
Delete Speed Restriction Altitude Restriction
Rev 1.08 30
Plan Review
Turn the mode switch on the EFIS panel to PLAN.
The Navigation Display (ND) displays the flight-plan with the waypoint at the top of the
current LEGS page centered.
R6 on the CDU changes to the STEP command.
Review the flight-plan by stepping through the waypoints.
Press R6 on the CDU to step through the waypoints while reviewing the displayed path
on the ND.
Click on the center of the ND to expand the gauge.
Legs Page Waypoint Step
Rev 1.08 31
17. VNAV Pages
Access the VNAV pages by pressing the VNAV key.
There are 3 VNAV pages for climb, cruise and descent flight phases. When VNAV is
pressed the page for the current flight phase is displayed.
VNAV Climb Page
CRZ ALT Cruise altitude. Enter altitude in feet or flight level (100's of feet) on the
scratchpad, then press L1 to change. Enter 0 to turn off FMC VNAV.
ECON SPD FMC calculated climb speed. Change values by entering the speed (120 -
350) or mach number (40 – 90) on the scratchpad then press L2.
SPD TRANS Speed limit below specified altitude. Default is 250 knots below 10000
feet. Change values by entering speed or altitude on the scratchpad and
pressing L3. Two change operations are required to change both values.
SPD RESTR Speed restriction below specified altitude. Change values by entering
speed or altitude on the scratchpad and pressing L4. Two change
operations are required to change both values.
ECON Press L5 to revert back to economy climb speed.
INDEX Press L6 to go to the Index page.
Rev 1.08 32
TO T/C ETA and distance to predicted top-of-climb.
TRANS ALT Altitude above which standard barometeric pressure is used. Change
value by entering the altitude in the scratchpad then press R3.
ROUTE Press R6 to go to the active Legs page.
VNAV Cruise Page Navigation Display Step Climb Arc
CRZ ALT Cruise altitude. Enter altitude in feet or flight level (100's of feet) on the
scratchpad, then press L1 to change. Enter 0 to turn off FMC VNAV.
ECON SPD FMC calculated cruise speed. Change values by entering the speed (120 -
350) or mach number (40 – 90) on the scratchpad then press L2.
ECON Press L5 to revert back to economy cruise speed.
INDEX Press L6 to go to the Index page.
STEP ETA and distance to predicted optimum step climb position. Appears
only if cruise distance can accommodate a step climb, and step size is
greater than zero. ND displays step climb (S/C) arc if within range.
TO T/D ETA and distance to predicted top-of-descent.
ETA FUEL ETA and predicted fuel remaining at destination.
OPTI ALTS Optimum, maximum and recommended cruise altitudes.
ROUTE Press R6 to go to the active Legs page.
Rev 1.08 33
VNAV Descent Page
Rev 1.08 34
18. Runway Approach Pages
Access the Runway Approach pages by pressing the DEP/ARR key.
The Runway Approach pages allow selection and load of an approach from the FSX
GPS database. A runway approach segment cannot be modified to add or delete
waypoints.
Runway Approach Index Page
Access the approaches for the flightplan destination airport by pressing R2.
Access approaches for any airport, by first entering the airport ident in the scratchpad,
then pressing R5.
The Runway Approach Selection pages are then displayed.
Rev 1.08 35
Runway Approach Selection Pages
The Runway Approach Selection pages list the approaches available for the selected
airport.
Use PREV/NEXT page to go to the page containing the desired approach.
Press APPR INDEX, L6, to go back to the approach index page, or
Press the RSK next to the desired approach. In the image above VIDP ILS 10 approach
is selected by pressing R4.
The approach transition selection pages are then displayed.
Rev 1.08 36
Approach Transition Select Pages
The approach transition selection pages list the transitions available for the selected
approach.
Use PREV/NEXT page to go to the page containing the desired approach transition.
Press APPR INDEX, L6, to go back to the approach index page, or
Press the RSK next to the desired transition. In the image above VIDP ILS 10 approach
transition IGINO is selected by pressing R4. Pressing R4 again toggles the selection
status.
Rev 1.08 37
The approach transition is marked as SELected and the LOAD option appears.
Approach Transition Selected
Rev 1.08 38
Close the route discontinuity:
1. Select the approach transition way point.
2. Select the point to insert the transition in the flightplan.
3. EXEC the change.
Select Transition Waypoint Select Insertion Point
Continuous Route
The first waypoint of the approach segment is identified as APPR TRANS on the route
page. Waypoints cannot be added to the end of the approach segment.
Rev 1.08 39
19. NAV/RAD Pages
Access the NAV/RAD pages by pressing the NAV/RAD key.
The NAV/RAD pages display:
• two nearest VOR stations
• approach runway ILS frequency (if available)
• nearest ADF station
The nearest VORs radial and distance information is displayed on lines 2 and 3
respectively.
The NAV radios can be tuned to the VOR frequency by pressing L1 for NAV1 or R1 for
NAV2.
If an approach is loaded, the destination airport, approach name and ILS frequency, if
available, is displayed on line 4. If VNAV is active, the FMC will tune the NAV radios
to the ILS frequency when the aircraft is within 30 nmiles of the airport. The NAV
radios can be tuned to NAV 1 or NAV2 at any time by pressing L4 or R4 respectively.
The nearest ADF station is shown on L5. It can be tuned to ADF 1 by pressing L5.
ADF 2 tuned frequency is shown on R5.
NAV/RAD Page
Rev 1.08 40
The Communications radios tuned frequencies are displayed on the Comm Radio page.
The Comm Radio page can be accessed as page 2 of the NAV/RAD pages or by pressing
the FMC/COMM key.
Comm Radio Page
Rev 1.08 41
20. Progress Pages
Access the Progress pages by pressing the PROG key.
Progress Pages
Progress pages display waypoint and destination distance, ETA, fuel, wind and tracking
information.
Fuel used, displayed on page 2, line 4, can be reset by pressing R4.
Rev 1.08 42
21. Activate Flightplan Leg HOLD Page
Access the HOLD pages by pressing the HOLD key.
The HOLD pages are used to activate a leg in the flightplan. The format is similar to the
route page.
Use the PREV/NEXT page to go to the page that contains the waypoint segment to
activate.
Press the RSK next to the waypoint. The waypoint ident is copied to the scratchpad.
Press the EXEC key to make the waypoint segment active and begin turning to an
intercept course with the flightplan segment.
Activate Flightplan Waypoint
Segment from HOLD Page Progress Page
The progress page is then displayed with the next waypoint distance, ETA and fuel.
Rev 1.08 43
22. FIX Direct-To Page
Access the FIX pages by pressing the FIX key.
The FIX page is used to specify a navigation fix to fly direct to. The FSX GPS “direct-
to” mode is activated. Direct-to mode consists of a path starting at the aircraft position
where the mode was invoked and terminating at the target fix. This path directly to the
specified fix overrides the flightplan.
VNAV is disabled when “direct-to” mode is active. Modifying the flightplan is the
preferred method to proceed to a waypoint when using VNAV.
FIX Direct-To Mode
Rev 1.08 44
Progress Direct-To
Rev 1.08 45
Note that when the flightplan becomes active after cancelling direct-to mode, the first
waypoint in the plan is the active waypoint. Avoid initiating a turn towards the first
waypoint by disengaging LNAV prior to cancelling direct-to mode. Use the HOLD page
to activate the desired flightplan waypoint. Then re-enable LNAV.
In order to reduce the likelihood of this problem occurring, the FMS will save the flight-
plan when the flight is saved and add to the flight-plan file name the tag:
_JB777FMC_<DEPART_IDENT>_<DEST_IDENT>_ <FLIGHT_FILE_NAME>
The intent behind this strategy is that a long-haul 777 flight may be saved several times
throughout the duration of the flight with plan changes made along the way. Each saved
instance must be in sync with the plan at the time the flight is saved.
The side effect is there will be a flight-plan file (with a long name) for every saved flight
file.
Keep in mind that if a flight-plan is modified and saved with the same file name, any
flight file that referenced the plan in its original state will encounter a GPS load error.
Rev 1.08 46
Appendix 1: Adding Fixes to the FSX Navigation Database
Navigational fixes can be added to FSX navigation database. An XML file contains the
fix(es) to add to the database.
Waypoints are specified with the following fields:
Field Description
lat latitude in decimal notation. North is positive, south is negative.
lon longitude in decimal notation. East is positive, west is negative.
waypointType type of waypoint
magvar magnetic variation. The difference between true north and
magnetic north at the position of the waypoint. Magnetic variation
can be obtained from the FMC NAV DATA for an existing nearby
VOR.
waypointRegion region code based on ICAO regions. Region code can be obtained
from the FMC NAV DATA for an existing nearby fix.
waypointIdent five character waypoint identifier.
The waypoint entry adds to the database the GINGA fix in the Hong Kong region (VH).
Multiple waypoint entries can be included in the file.
Compile the xml file with the bgl compiler, BglComp.exe, included in the FSX SDK and
located in the “Environment Kit” folder.
The file can be compiled from windows explorer by dragging it over the BglComp.exe.
Rev 1.08 47
The compilation result is a *.blg file.
Place the bgl file in the Addon Scenery/scenery folder.
Once in place, the new waypoints can be accessed the same way as any existing fix in
the database.
Rev 1.08 48