Aerosoft CRJ-700 User guide

Aerosoft – Digital Aviation

CRJ-700 CRJ-900

FMS Guide

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VOLUME VI

FLIGHT MANAGEMENT SYSTEM

- FMS GUIDE –

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Rev #

Date

Author

Change

Version

001

11-Oct-15

IV

Start of documentation

0.90

002

23-Apr-17

IV

Completing manual Vol. 6 and release for beta testers

0.95

On behalf of Authority

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TABLE OF CONTENTS 
Flight Management System - Introduction ........................................................................................... 5 
General Description / Introduction ................................................................................................... 5 
Where to find the FMS/CDU and basic layout ....................................................................................... 5 
Preflight Setup and sequence of pages ................................................................................................. 8 
Flight Management System - pages .................................................................................................... 10 
Setup ............................................................................................................................................... 11 
INDEX Page ................................................................................................................................. 11 
IRS CTL sub-page ................................................................................................................................. 12 
VOR CTL STATE sub-page ..................................................................................................................... 13 
FMS CTL STATE sub-page ..................................................................................................................... 13 
ROUTE MENU sub-page ...................................................................................................................... 14 
DATA BASE sub-page ........................................................................................................................... 15 
DB DISK OPS sub-page ........................................................................................................................ 16 
DEFAULTS sub-page ............................................................................................................................ 17 
ARR DATA sub-page............................................................................................................................. 21 
MCDU MENU Page ...................................................................................................................... 22 
ACFT STATE sub-page .......................................................................................................................... 23 
Status page ................................................................................................................................. 24 
Preflight .......................................................................................................................................... 26 
Pos init page ................................................................................................................................ 26 
FPLN Page ................................................................................................................................... 30 
DEP / ARR sub-page ............................................................................................................................ 39 
Route strings and its appearance in the FMS....................................................................................... 42 
Secondary Flight Plan .......................................................................................................................... 45 
PERF Page ................................................................................................................................... 47 
PERF INIT sub-page ............................................................................................................................. 48 
VNAV SETUP sub-page ........................................................................................................................ 52 
FUEL MGMT sub-page ........................................................................................................................ 55 
FLT LOG sub-page................................................................................................................................ 59 
Checking & Modifying a route: LEGS page, DISCOS and waypoint formats ................................ 60 
The LEGS page .................................................................................................................................... 61 
How to deal with DISCONTINUITIES .................................................................................................... 62 
Modifying the route on the LEGS page ................................................................................................ 63 
Entering directs via the DIR INTC page ................................................................................................ 65 
Enroute / Monitoring ...................................................................................................................... 66 
PROG Page .................................................................................................................................. 66 
HOLD Page .................................................................................................................................. 69 

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RADIO page ................................................................................................................................. 73

MFD DATA page .......................................................................................................................... 74

MFD MENU page......................................................................................................................... 74

MFD ADV / DISPLAY ADVANCE Page ........................................................................................... 78

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FLIGHT MANAGEMENT SYSTEM - INTRODUCTION

GENERAL DESCRIPTION / INTRODUCTION

The CRJ is powered by two Collins FMS-4200 flight management computers. The control display units (CDU)

are the interface between pilots and the FMS units itself by means of data / information display and data

entry. The FMS provides lateral guidance and vertical advisories based on the entered flight route,

performance data and data collected from several sensors.

The stored performance database is advisory only, as the FMS has no ability to control vertical or speed modes

of the autopilot. Only heading information based on the programmed route are provided to the autopilot in

LNAV mode.

This chapter in the systems manual only provides a very basic introduction to the flight management system.

More details will be introduced in the following chapters.

WHERE TO FIND THE FMS/CDU AND BASIC LAYOUT

The control display units, CDUs sit on the upper part of the pedestal. Both CDUs are identical regarding

functionality and layout.

The following picture shows the basic layout of the control display unit, CDU.

- Title line

The title line shows the page title, or mode as well as the current page number and number of total

pages, of applicable

- Label line

The label lines are aligned with the respective line select keys. They show information related to the

current page. Pressing the line select key adjacent to the label line, allows copying the indicated

information into the scratchpad or vice versa.

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- Prompts / Dashes

Boxes indicate where information need to be entered into the FMS.

Dashes indicate where information may be entered.

- Data lines

Provide further information to the indicated data in the same label line (i.e. distance information on

the LEGS page)

- Scratchpad

Text entered via the keypad or copied from a label line via the line select key is displayed in the

scratchpad

- Message line

The message line indicates system generated

- Left Line Select Keys LSL1L to LSK6L

Allow to enter and copy data from the data lines into the scratchpad and vice versa.

- Right Line Select Keys LSL1R to LSK6R

Allow to enter and copy data from the data lines into the scratchpad and vice versa.

- Function Keys

Pressing a function key calls /opens the associated page

o MSG

Opens the FMS message page

o DIR/INTC

Opens the DIRECT-TO page

o FPLN

Opens the Flightplan page to enter and modify a flighplan

o DEP/ARR

Opens the Departure and Arrival page to select SIDs and STARs

o HOLD

Opens the HOLDING page to programm holdings

o ↑ and ↓

For scrolling up and down – for example to modify the center for the flight plan page

o PREV PAGE

Opens previous page

o NEXT PAGE

Opens next page

o INDEX

Opens INDEX page to access FMS functions which have no direct-access-keys

o FIX

Opens the FIX INFO page

o LEGS

Opens the LEGS page to modify a flightplan’s legs

o SEC FPLN

Opens secondary flightplan page

o VNAV

Opens VNAV page for VNAV advisories

o MCDU MENU

Opens the ENU page

o EXEC

The EXEC button executes modifications made

o RADIO

Opens the radio programming page (NAV, COM, ADF)

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o PROG

Opens the Progress page to show a summary of the current flight status

o PERF

Opens the Performance page

o MFD DATA

Allows to switch between map and text display

o MFD MENU

Allows to look deeper into the FMS data source regarding airports, navaids, fixes and modify

data

o MFD ADV

Opens the DISPLAY ADVANCE page to move through the MFD text pages.

- Keypad

Used to enter alpha-numerical data in to the scratchpad.

You may use your mouse to enter data into the FMS and select certain functions, nevertheless you may also

activate a mode to use keyboard commands to directly enter data / select functions from the FMS. Please bear

in mind that as long as the keyboard mode is activated other key assignments in your flightsim won’t work.

Note

In case you are using the keyboard entry mode do not forget to deactivate it when entries are completed to

gain full function of regular flightsim functions.

The table on the following page shows the available key commands.

Function

German Keyboard

U.S. Keyboard

Toggles left MCDU keyboard entry mode ON/OFF

Strg+Umschalt+1

Ctrl+Shift+1

Toggles right MCDU keyboard entry mode ON/OFF

Strg+Umschalt+2

Ctrl+Shift+2

LSK 1L

F1

LSK 2L

F2

LSK 3L

F3

LSK 4L

F4

LSK 5L

F5

LSK 6L

F6

LSK 1R

F7

LSK 2R

F8

LSK 3R

F9

LSK 4R

F10

LSK 5R

F11

LSK 6R

F12

MSG

Strg+F1

Ctrl+F1

Dir/Intc

Strg+F2

Ctrl+F2

Fpln

Strg+F3

Ctrl+F3

Dep/Arr

Strg+F4

Ctrl+F4

Hold

Strg+F5

Ctrl+F5

MCDU Menu

Strg+F6

Ctrl+F6

Index

Strg+F7

Ctrl+F7

Fix

Strg+F8

Ctrl+F8

Legs

Strg+F9

Ctrl+F9

Sec Fpln

Strg+F10

Ctrl+F10

VNAV

Strg+F11

Ctrl+F11

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Exec

Return oder Strg+F12

Return or Ctrl+F12

Radio

Umschalt+F1

Shift+F1

Prog

Umschalt+F2

Shift+F2

Perf

Umschalt+F3

Shift+F3

MFD Data

Umschalt+F4

Shift+F4

MFD Menu

Umschalt+F5

Shift+F5

MFD Adv

Umschalt+F6

Shift+F6

A-Z

0-9

.

+

-

/

SP

Leertaste

Space

DEL

Entf

Delete

CLR

Zurück

Backspace

PREFLIGHT SETUP AND SEQUENCE OF PAGES

During flight preparation the FMS is set up as well. This setup follows a certain sequence of events which will

be briefly introduced in this chapter. Check the tutorial flight and FMS manual for more information.

1. Preflight

1. MENU page

Allows to select between several information and setup pages

2. INDEX page

Allows to select between FMS functions, payload options and aircraft status options (AFIS is

not simulated)

3. STATUS page

After startup the FMS displays the STATUS page – review the displayed information for

consistency

4. POS Init

Now you need to enter the aircrafts position.

2. Flight Planning

1. FLTPLN

i. Enter Origin

ii. Enter Destination

iii. Enter Origin Runway

iv. Enter Alternate airport

v. DEP/ARR

1. Enter a SID

2. Enter a STAR

vi. Modify SID/STAR

vii. Enter route in FLTPLN page according your route string

2. PERF

Enter the respective performance data like number of passengers, cargo loaded, fuel loaded

etc.

3. VNAV

Review / set up the selected climb, cruise and descent profiles

4. LEGS

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Check route & altitude / speed restrictions

5. PROG

Review the data on the progress page

3. Enroute / Monitoring

1. PROG

Review the data on the progress page

2. HOLD

Used to enter/modify/leave Holdings at certain waypoints

3. RADIO

Allows tuning of radio frequencies

4. MFD DATA

Allows to switch between map and text display

5. MFD MENU

Allows to look deeper into the FMS data source regarding airports, navaids, fixes and modify

data

6. MFD ADV

Opens the DISPLAY ADVANCE page to move through the MFD text pages.

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FLIGHT MANAGEMENT SYSTEM - PAGES

The following sections describe the FMS’s pages, their functions, sub-pages and how to use them. For

clarification the pages are sorted according a certain sequence:

- Setup

All pages dealing with general settings, independent of a specific flight

- Preflight

All the pages and general steps to prepare a flight

- Flight Planning

Describing the pages and functions to do the flight planning

- Enroute / Monitoring

Certain pages and functions to be used during the flight for monitoring or amendments which

become necessary throughout a flight

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SETUP

INDEX PAGE

The INDEX page is used to select FMS pages which are not selectable through function keys. The INDEX page

offers eight selectable pages:

1. STATUS

Opens the STATUS page (see respective chapter)

2. POS INIT

Opens the POS INIT page (see respective chapter)

3. IRS CTL

Opens a menu to configure the Inertial reference system, IRS

4. VOR CTL

This menu configures usage of VOR stations during initial position estimation of the IRS

5. FMS CTL

On this page you can toggle the heading display mode between magnetic and true heading and select

between dependent and independent mode of the two FMS.

6. ROUTE MENU

This page shows a list of stored routes

7. DATA BASE

The data base page enables you to search for a certain waypoint, VOR/NDB or airport in the current

FMS navigational data base and also enables you to define own waypoints.

8. DB DISK OPS

Not simulated - Used for data base operations in the real aircraft

9. DEFAULTS

This pages allows to modify several default values like weights

10. ARR DATA

This page shows available information on the selected destination / arrival airfield.

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IRS CTL SUB-PAGE

The IRS Control page displays position differences between each IRS sensor’s calculated position, providing the

following information:

- Direction difference displayed as a heading in XXX°

- Distance difference displayed as XX,X nm (values above 99,9 will be displayed as 99,9 as well)

- The position drift rate given in XX,X nm per hour

FMS_30.jpg

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VOR CTL STATE SUB-PAGE

The VOR control page allows you to configure whether certain VORs are used or not to be used to assist during

initial position initialization. Press line select key 5L to either enable or disable VOR Control.

Enter the VOR’s identifier into the scratchpad and then press the respective line select key to either select or

inhibit certain VORs. Use LSK 1L and 1R to select VORs to be used during position initialization. Use LSKs 2L, 3L,

4L as well as 2R, 3R and 4R to enter VORs to be inhibited during position initialization.

The following picture shows VOR FFM to be used and VOR RID and MTR to be inhibited during position

initialization.

FMS_29.jpg

Entered VORs are used as long as they are stored in the FMS or unless a database update was performed.

FMS CTL STATE SUB-PAGE

The FMS control page allows to toggle between displaying true or magnetic (magnetic north) heading as well

as switching between dependent and independent mode of the two FMS.

Press LSK 1L to toggle between true and magnetic heading.

In case true heading is selected, the heading indications on the CDU and EFIS switch to true heading.

Furthermore heading indications on the FMS are designated by a small “T”. Whereas wind information (PROG

page) and VOR bearing information (VOR/DME STATUS page) is always displayed as magnetic heading.

FMS_31.jpg

Pressing LSK 2L would toggle between dependent and independent mode of the two FMS. Independent mode

is not simulated though – for the sake of clarity the following section briefly describes its function though.

In dependent mode the flightplan information are synchronized between both FMS. When switching to

independent mode both FMS may process different flightplan information. When switching to independent

mode you are required to select one FMS as the master / source of information for the autopilot system.

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When switching back from independent mode to sync mode, all information from the selected master FMS are

written over the information of the other FMS. Accordingly you are required to confirm when switching back

to sync mode.

ROUTE MENU SUB-PAGE

The ROUTE MENU page allows to store and load flightplans. When the ROUTE MENU page is opened, the

option PILOT ROUTE LIST is displayed – press LSK 1L to open the PILOT ROUTE LIST.

The options CO ROUTE LIST and DISK ROUTE LIST of the real aircraft are not simulated.

FMS_32.jpg

This opens the list of available flightplans. Press LSK 1L/R, 2L/R, 3L/R, or 4L/R to select and load a flightplan.

To store a flightplan enter a suitable filename into the scratchpad and press LSK 6L to store the active

flightplan or LSK 6R to store the secondary flightplan. ROUTE SAVED is displayed in yellow font when saving the

flightplan was successful.

Press LSK 5L to view the FLTPLN page for the secondary flightplan.

Press LSK 5R to return to the ROUTE MENU page.

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FMS_34.jpg

DATA BASE SUB-PAGE

The DATA BASE page allows to search for a certain waypoint, VOR, NDB or airport in the currently loaded

navigational database. Simply enter the identifier into the scratchpad and press LSK 1L to start the search.

FMS_35.jpg

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DB DISK OPS SUB-PAGE

Even though the available options on the DATA BASE DISK OPS page are displayed they are not simulated.

FMS_36.jpg

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DEFAULTS SUB-PAGE

The DEFAULTS page allows to enter several default values for the CRJ.

Changing of the default value does not affect active flightplans (there are a few exceptions) but only when a

new flightplan is created. Some of these values may be overwritten by the respective pages of the flighplan.

FMS_37.jpg

• Page 1 of 4

o BOW 20.630kg (CRJ 900)

Basic Operation Weight used for performance calculation – amending this value affects also

active flightplans

o AVG PASS WT 84kg

Assumed average passenger weight – the payload page allows you to enter the passenger

number which multiplied with the average passenger weight yields the total weight of all

passengers.

o TAXI FUEL 100kg

Default taxi fuel weight for performance calculations

o RESERVE FUEL 748kg (CRJ900)

Default reserve fuel weight for performance calculations

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FMS_38.jpg

• Page 2 of 4

o CLIMB SPEED 290/.74

Selected speed /mach number for default climb profile

o CRUISE SPEED 300/.74

Selected speed /mach number for default cruise profile

o DESCEND SPEED .74/290

Selected speed /mach number for default descend profile

o DESCEND ANGLE 3.0°

Selected descend angle for default descend profile

o SPD / ALT LIMIT 10.000ft

Altitude at which 290kts are allowed

o FL/TRANS ALT FL180

Default transition altitude

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FMS_39.jpg

• Page 3 of 4

o DME USAGE YES

Toggles whether to use DMEs during position initialization

o VOR USAGE NO

Toggles whether to use VORs during position initialization

o NEAREST APTS MIN RWY 4.000

Minimum runway length to display airport

o FLIGHT LOG ON LDG NO

If set to yes the FLT LOG page opens automatically after landing

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FMS_40.jpg

• Page 4 of 4

o FUEL FLOW CORRECTION 0.0

Not simulated

o REDUCED HALF BANK 12.5

Allowed values from 5° to 12.5° - selects default value when ½ bank mode is selected

o FPLN WINDS / TEMP PWR UP RETAIN

Not simulated - Toggles whether winds and temperatures of a flightplan are saved or deleted

during power up

o TEMP COMP NO

???

o DSPL TMP FINAL VPA UNCOMP

???

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