Advanced Flight Control System

Question 1

Can both altitude hold modes be engaged at the same time?

Answer 1

No.

Question 2

What happens to heading select when the centering device release switch is pressed?

Answer 2

Momentarily disengaged.

Question 3

Name five features provided by the AFCS.

Answer 3

• Bank Angle Hold
• Heading Hold
• Airspeed Hold
• Pitch Attitude Hold
• Positive Stick Gradient
• Altitude Hold
• AFCS Trim
• Heading Select
• Longitudinal Cyclic Trim

Question 4

How should you momentarily disengage the altitude hold when changing altitude?

Answer 4

Depressing Trust Control Brake Trigger

Question 5

Should you allow the cyclic to move when the AFCS trim switch is moved forward or aft?

Answer 5

Yes.

Question 6

Will the cyclic move when lateral AFCS trim is used?

Answer 6

No.

Question 7

When HDG Select is engaged how can the pilot change the aircraft heading?

Answer 7

By rotating the Heading Bug.

Question 8

Which actuator makes the control input for positive stick gradient, pitch attitude, and airspeed hold purposes?

Answer 8

DASH actuators.

Question 9

What is the status of the heading hold when HDG is engaged?

Answer 9

Will be disengaged.

Question 10

Will the LCT’s function with the AFCS off?

Answer 10

Yes

Question 11

When are you allowed to use radar altitude hold?

Answer 11

Extended hover operations.

Question 12

What should you do prior to entering moderate turbulence if BARO ALT is engaged?

Answer 12

Turn it off

Question 13

Which switches must you press to engage heading select?

Answer 13

• CMD SEL on HSI
• AFCS HGD switches

Question 14

Radar and Barometric altitude hold are controlled by which AFCS Computer?

Answer 14

No. 1 AFCS Computer.

Question 15

What causes the LCT actuator to position to GND when operating at AUTO?

Answer 15

Landing Gear Proximity Switches

Question 16

What should you do if the LCT actuators fail to position to GND during taxi, water, or slope operations?

Answer 16

LCT must be placed in manual mode and controlled with switch in cockpit

Question 17

What are 3 of 4 methods of disengaging heading (HDG) select?

Answer 17

• Pressing the centering release switch
• Pressing another CMD SEL switch
• Airspeed below 40 kts

Question 18

Where must the swivel switch be positioned in order for heading hold to operate?

Answer 18

Lock position

Question 19

How will a vertical gyro failure affect AFCS?

Answer 19

Results in loss of associated AFCS

Question 20

What features of AFCS are disengaged while the centering device release switch is pressed?

Answer 20

• Heading/Bank Hold momentarily released
• HDG disengaged

Question 21

When operating at or above 40 KIAS does the AFCS automatically provide coordinated turns?

Answer 21

Yes

Question 22

Which radar altimeter provides the altitude signals to AFCS?

Answer 22

Right seat

Question 23

What is the maximum bank angle with altitude hold engaged?

Answer 23

45°

Question 24

What is the maximum allowable airspeed when operating with Both AFCS OFF?

Answer 24

160 Knots or VNE, whichever is lower

Question 25

What is the maximum allowable airspeed when operating with a single AFCS ON?

Answer 25

100 knots or VNE, whichever is lower

Question 26

What must you monitor to prevent transmission damage when changing airspeed or heading with altitude hold engaged?

Answer 26

The thrust control movement and torque meter

Question 27

What are the 3 AFCS functions provided by the DASH actuator?

Answer 27

* Positive Stick Gradient * Pitch Attitude Hold * Airspeed Hold

Question 28

How is HDG select re-engaged if the other CMD SEL switch is pressed while heading select is engaged?

Answer 28

Reselect it

Question 29

What action should you take if altitude hold fails?

Answer 29

Disengage

Question 30

Should you cause the thrust brake to slip during the controls check?

Answer 30

No

Question 31

What is the emergency procedure for a single AFCS failure with both systems on?

Answer 31

* Airspeed less than 100 knots * Adjust altitude * AFCS SEL switch - isolate * If unable to isolate - AFCS SEL switch off

Question 32

If you have a hardover with both AFCS on, how will you know when you have the good system selected on?

Answer 32

Reverse Hardover with good system

Question 33

What action is required to release the Thrust Magnetic brake?

Answer 33

Trigger switch on the Thrust lever

Question 34

How will the aircraft react if AFCS is turned off at one airspeed and back on at a different airspeed?

Answer 34

It will return back to AS where it was turned off at

Question 35

What will indicate that the DASH actuators are re-centering when AFCS is first turned on?

Answer 35

#1 AFCS light will be on

Question 36

Do not manually extend the LCT actuators beyond the GND position on the cyclic trim indicators at airspeeds below _____ KIAS.

Answer 36

60 Knots

Question 37

How can you change the aircraft bank angle without moving the cyclic?

Answer 37

AFCS Cyclic Trim Switch

Question 38

What is the minimum airspeed for engaging heading select?

Answer 38

40 KIAS

Question 39

When are you prohibited from using radar altitude hold?

Answer 39

Forward Flight over terrain

Question 40

How will an LCT actuator failure be indicated?

Answer 40

When the indicator needle does not program with airspeed changes

Question 41

What are three possible indications of a vertical gyro failure?

Answer 41

* Attitude indicator failure * AFCS OFF caution * Attitude transients

Question 42

Which mode of LCT operation should you select during flight in turbulence?

Answer 42

Manual

Question 43

The acronym CPT stands for?

Answer 43

Control Position Transducers