Flight Controls

Question 1

Thrust asymmetry protection (TAP) is available when the EECs are in normal or alternate mode and…

Answer 1

Flight controls are in Normal mode only

Question 2

What are the primary sources of power for the flight control electronics

Answer 2

Three engine driven permanent magnet generators (PMGs)

Question 3

When is the Cruise Flap Function active

Answer 3

In normal mode, above 25,000’ between 0.54 and 0.87

Question 4

When is Autodrag active

Answer 4

At flaps 25 or 30 and the thrust levers are at idle
Normal mode only
When on or above glidepath or slope
(washes out at 500’ for normal landing)

Question 5

What is the maximum nose wheel range of movement with pedals and with tiller

Answer 5

Up to 8° for pedals and 70° for tiller. (90 if the scissor link pin is removed)

Question 6

In the secondary control mode, how are the flaps and slats controlled and extended

Answer 6

Controlled separately and positioned either by hydraulic or electric motors

Question 7

If rudder trim is selected on the ground, does it affect the takeoff performance

Answer 7

No, manual trim inputs are automatically zeroed when groundspeed exceeds 30 knots; further manual trim inputs are inhibited until in the air

Question 8

What are the primary flight control system modes

Answer 8

Normal, secondary and direct

Question 9

When is the wheel to rudder crosstie function available in the 787

Answer 9

In the secondary and direct modes only

Question 10

In which mode is Slat Load relief available

Answer 10

Secondary Mode

Question 11

When is the Autogap function available

Answer 11

Only in primary mode, when slats are in the mid position and speed below 225kts (240 for -9s and -10s), and also at high angle of attack.

Question 12

What following statement is correct. (Stab indicator with all the numbers shown)

Answer 12

FMC data has been entered

Question 13

In normal mode what are the three flight envelope protection featured available

Answer 13

Bank angle protection, overspeed protection and stall prevention

Question 14

What do you get when you select F25

Answer 14

More slats (max slats) but no more flaps than at F20

Question 15

In Secondary and Direct modes of controls, how is control feel adjusted

Answer 15

It changes with flap deployment (gets easier to move the controls with flaps down)

Question 16

What is the maximum flap position in secondary and direct modes of the flaps

Answer 16

F20

Question 17

In normal mode of controls, are the flaps inhibited above 20,000’

Answer 17

Yes, also if you are going 10kts above limit speed too.

Question 18

What is Bank angle protection?

Answer 18

> 35° of bank, control force to reduce to 30°.
Back pressure req on the controls above 30° of bank
Normal mode only
Voice alerts at 35°, 40° and 45°

Question 19

AOA limit symbol in the hud pops up at what margin from the shaker?

Answer 19

5°

Question 20

At what height do you get the SPEEDBRAKES EXTENDED message

Answer 20

800’

Question 21

How do you know you are in Secondary mode of flight controls?

Answer 21

You get the EICAS message: FLIGHT CONTROL MODE

Question 22

How do you know you are in Direct mode

Answer 22

You get FLIGHT CONTROL COMPUTERS

Question 23

What is the risk if you are in A/T HOLD mode and also have either VNAV SPD or FLCH SPD on the FMA

Answer 23

The A/T won’t wake up when manually flying and you could underspeed the a/c. Also happens in FLCH SPD or in TOGA or below 400’ on take-off or below 100’ on the approach