Flight Controls

Question 0

Each aileron section powered by 2 hyd sys? How about rudder sections (2)?

T or F?

Answer 0

Both True

Question 1

Primary

Answer 1

Elev
Ail
Rudders
No manual reversion

Question 2

Secondary flight controls

Answer 2

Spoilers
Horizontal stabilizer
Leading/trailing edge flaps

Elec b/u sys for the flaps

Question 3

How many sys power the moveable stabilizer

Answer 3

2

Question 4

Leading edge flaps powered by?

Answer 4

Pneumatically

Question 5

Trailing edge flap powered by

Answer 5

Hydraulically by 2 separate hyd sys

Question 6

Flight spoilers use which spoilers on each wing?

Answer 6

Inboard, 4 on each wing

Increase drag, reduce lift

Question 7

Do spoilerons assist with roll control?

Answer 7

Yes, 5 off side spoilerons are used I. Addition to aileron

Question 8

Flt and gnd spoilers powered by?

Answer 8

Hyd sys 2,3,4

No redundancy

Question 9

Stab trim and elev feel units powered by?

Answer 9

Hyd sys 2,3

Loss of one sys causes reduced trim rate

Question 10

Inboard trailing edge flaps powered by?

Answer 10

Hyd sys 1

Question 11

OB trailing edge flaps powered by

Answer 11

Hyd sys 4

Question 12

Autopilot left, center, right powered by

Answer 12

Hyd sys 3, 1, 2 respectively

Question 13

Leading edge flap PDU?

Answer 13

Pneumatic drive units

Air is supplied to the units from the main pneumatic manifold

Question 14

STAB TRIM UNSCHD

Answer 14

Generated anytime the stabilizer moves w/o crew or autopilot input, or automatic cutout does not occur.

Question 15

STAB TRIM _

Answer 15

Anytime auto cutout has occurred or if any stab trim sw is in cutout

Question 16

How many spoilers are used for roll control?

Answer 16

Five (5)

Question 17

Upper rudder powered by

Answer 17

Hyd sys 1, 3

Question 18

Lower rudder powered by?

Answer 18

Hyd sys 2, 4

Question 19

Yaw dampers ( and ratio changers) powered by which hyd sys?

Answer 19

Hyd sys 3 (upper rudder)

Hyd sys 2 (lower rudder)

Question 20

Yaw damper require IRS data, during alignment which EICAS and sw message will appear ( or when all 3 IRS’s are inop)?

Answer 20

Yaw damper upr
Yaw damper lwr

Inop on s&w

Question 21

Function of ratio changer?

Answer 21

Reduces rudder deflection as speed increases.

RUD RATIO SNGL

RUD RATIO DUAL

Question 22

Spoiler functions

Answer 22

Roll control
Speed brakes
Ground spoilers

Question 23

SPEEDBRAKES EXT

Answer 23

RA between 800’ and 15’ or
Flaps in LNG config, or
2 or more thrust levers fwd of closed position

Question 24

Automatic gnd spoilers:

Answer 24

Lever in ARM detention
Thrust levers 1 and 3 near closed position
Main LNG gear has touched down ( wheel spin up)

Spd brk lever automatically moves to UP

Question 25

Speed mixers?

Answer 25

Combine the input from the control wheels and the speed brake lever

Roll inputs are allowed to deflect the spoiler panels Up or Down

Roll function have priority over spd brake or gnd spoiler function.

Question 26

FLAPS PRIMARY

Answer 26

Displayed continuously when any flap group is in secondary mode

Question 27

Flight load relief available in primary and secondary mode?

Answer 27

No, only in primary mode.

Question 28

Load relief provided for all flap settings?

Answer 28

No, only landing flap selection

Question 29

I/B and O/B trailing edge flap sections powered by?

Answer 29

Hyd sys 1, 4.

Protected for asymmetry

Question 30

FLAPS DRIVE

Answer 30

One or more flap groups have failed to drive in the secondary control mode or an asymmetry condition detected.

Both primary and secondary power is shutoff to the failed drive unit.

Do not attempt to use the Alternate Flaps!