Chapter A05 - Flight Management Systems

Question 1

The FMS comprises the following components:

Answer 1

Flight Management Computer (FMC)
Autopilot/Flight Director System (AFDS)
Auto Throttle (A/T)
Inertial Reference System (IRS)
Multifunction Control Display Unit (MCDU)

Question 2

Answer 2

Question 3

The purpose of the Multi-function Control and Display Unit (MCDU) is to provide

Answer 3

a human-machine interface.

Question 4

In the FMC, one acts as ? and the other acts as ?

Answer 4

Master and Slave

Question 5

FMC talk to each other via the ?

Answer 5

Cross-talk bus

Question 6

In Independent mode the two FMCs ?

Answer 6

Do not not communicate with each other

Question 7

In Independent mode, there is no comparison so the pilots ?

Answer 7

Have to monitor both systems

Question 8

Single mode of an FMC is ?

Answer 8

Only one FMC is operational

Question 9

What are the two databuses of the FMC?

Answer 9

Nav and Performance database

Question 10

Back-up (Alternate) Navigation

Answer 10

Complete FMC failure

Question 11

Volatile memory is?

Answer 11

When the power source is removed the data is removed

Question 12

Non-volatile memory is?

Answer 12

When the power source is removed the data is not removed

Question 13

The navigation database contains?

Answer 13

It contains the information that can be found in navigational charts, plates and manuals

Question 14

How often is the database of an FMS updated ?

Answer 14

28 Days

Question 15

Can you change the content of the database you’re using?

Answer 15

NO!

Question 16

Can you change the database of the FMC you’re using?

Answer 16

YES!

Question 17

What does STAR stand for?

Answer 17

STandard Arrival Route

Question 18

How does an FMS know where it is ?

Answer 18

Question 19

The Kalman filter does what ?

Answer 19

Filters the different navigation equipment (GNSS, IRS, DME, VOR/ILS) to choose the best location from the FMS

Question 20

RNP stands for?

Answer 20

Required Navigation Performance

Question 21

What is the required accuracy on an airway?

Answer 21

5nm

Question 22

Actual Navigation Performance (ANP) is?

Answer 22

Current Accuracy

Question 23

Required Navigation Performance (RNP) - the accuracy required to operate in a given regulated airspace (typically, _____)

Answer 23

*RNP is 5 NM

Question 24

If ANP is higher then (RNP) _____ message will appear in FMS

Answer 24

• “Unable RNP”

Question 25

How does

Answer 25

Geometry and Strength

Question 26

The FMS does not cater for ____

Answer 26

Configuration changes

Question 27

For most FMSs, the fuel prediction function, which computes the remaining fuel along the flight plan, takes into account the following parameters:

Answer 27

* The cruise flight level. * The current wind computed or the resulting ground speed.

Question 28

Cost index is the ratio of?

Answer 28

Fixed Cost to Fuel Costs

Question 29

With regards to the cost index, what would be flying slow or flying fast?

Answer 29

Question 30

What 4 pieces of information do you get off the LEGS page?

Answer 30

Question 31

What are the 5 pieces of information you get from the PROGRESS Page?

Answer 31

Question 32

What are the steps of setting up an FMS?

Answer 32

Identification page – IDENT Position Initialisation page – POS INIT Route Page – RTE Departure/Arrival page – DEP/ARR Performance Initialisation page – PERF INIT Selection of take-off thrust page – N1 LIMIT Take-off details – TAKEOFF REF

Question 33

IDENT PAGE: Ensure that the aircraft model is ____, fitted with engines of the _____ and that the _____ is in date. LSK 6R normally contains next start-up action, in this case, POS INIT.

Answer 33

* correct *correct rating * nav database

Question 34

What does the leg mode display?

Answer 34

Mag track and distance to waypoints

Question 35

What is OEI?

Answer 35

One Engine Inoperative

Question 36

FMS Auto-tunes VOR and DME based on..

Answer 36

Strength and geometry

Question 37

DOES NOT auto-tune the....

Answer 37

ILS

Question 38

Operating philosophy of the FMS is...

Answer 38

Master and Slave

Question 39

How many dimensions does the FMS use?

Answer 39

4D Flight trajectory

Question 40

Perf Factor in FMS as aircraft ages to show?

Answer 40

Degraded Performance

Question 41

Cost Index of 0 gives?

Answer 41

Max Range

Question 42

The position data (lat, long) computed by an IRS can be used by the: 1. Yaw damper. 2. FMS. 3. Radio altimeter.

Answer 42

FMS

Question 43

The role of the FMS (Flight Management System) is to 1. Aid the crew with navigation. 5. Reduce crew workload. 2. Shut down the engine in case of a malfunction. 3. Aid fuel efficiency. 4. Automatically avoid conflicting traffic when autopilot engaged.

Answer 43

1, 3, 5

Question 44

What are the inputs to the FMS? 1. Radio aids 4. Route data 2. Engine parameters 5. Air data. 3. Terminal data 6. Operating data.

Answer 44

All of the above

Question 45

When can a pilot change the data in the FMS Navigation database?

Answer 45

They can’t. For the pilot, the FMS data base is read-only.

Question 46

The period of validity of an Navigation FMS database:

Answer 46

Is 28 days.

Question 47

What are the approaches FMS is approved to provide guidance for?

Answer 47

RNAV, VOR/NDB

Question 48

FMS designed with the vertical navigation capability coupled to the autopilot, the FMS vertical command output can be?

Answer 48

A flight path angle A speed target

Question 49

Answer 49

Question 50

VNAV Capability -_____ -_____ NAV/LNAV ____ or ____

Answer 50

VNAV Capability -A flight path angle -Target speed NAV/LNAV Bank angle or Heading Demand

Question 51

Which one is 4D which one is 3D? FMS: TAWS:

Answer 51

FMS: 4D TAWS: 3D