Flight Controls

Question 1

What is the Speed Trim System

Answer 1

Speed stability augmentation system designed to improve flight characteristics during
- low gross weight
- aft center of gravity
- high thrust with autopilot disengaged

Question 2

What is the purpose of the Speed Trim System

Answer 2

To return the airplane to a trimmed speed by commanding the stabilizer in a direction opposite the speed change

Question 3

What are the conditions for the Speed Trim System to be engaged

Answer 3

Airspeed: 100kias - 0.6M
10 sec after TO
5 sec after release of trim switch
Autopilot OFF
Sensing of trim requirement

Question 4

How are flight spoilers powered

Answer 4

Hydraulic systems A and B

Question 5

Why can’t you move the speed brake lever past the flight detent

Answer 5

It will cause airplane buffeting

Question 6

Which hydraulic systems power which flight spoilers?

Answer 6

A and B each power 2 flight spoilers on each side.

BABA ABAB

Question 7

What does SPEED BRAKE DO NOT ARM light mean

Answer 7

Indicates an abnormal condition or test inputs to the system. This is deactivated with the speed brake in the down position.

Question 8

What does SPEED BRAKE DO NOT ARM light mean when illuminated during landing?

Answer 8

Indicates wheel speed below 60kts and the speed brake lever is not in the down position.

Essentially….you forgot to stow them while getting off the runway

(3CM-PX)

Question 9

SPEEDBRAKES EXTENDED light illuminates to indicate

Answer 9

Flight Spoilers are still extended at radio altitude below 800ft or Trailing edge flaps are extended more than 10 degrees

Question 10

How are the ground spoilers actuated

Answer 10

Hydraulic system A

Question 11

When will the Auto speed brake system operate?

Answer 11

Speed brake lever ARMED + light
RA less than 10 ft
Thrust Levers IDLE
MLG spin up + 60kts
MLG strut compression (WOW)

Question 12

Which MLG strut must compress to deploy ground spoilers

Answer 12

RIGHT MLG

Question 13

How does the Auto Speed Brake system work during an RTO

Answer 13

MLG spin up + 60kts
Thrust Levers IDLE
Reverse Thrust Levers deployed

All flight and ground spoilers will AUTOMATICALLY deploy until a thrust lever is moved out of idle or the handle is manually stowed

Question 14

Describe the Load Alleviation System

Answer 14

Conditions: Gross weights above 155,000lbs
And speed above 320kias
3AA-3CL

Flight spoilers limited to 50%.
Must hold lever if wishing to override.

Question 15

How are trailing edge flaps operated

Answer 15

Hydraulic System B

Question 16

Normal flap landing configurations

Answer 16

15, 30 and 40

Question 17

What does LE FLAPS TRANSIT amber light indicate

Answer 17

-LE devices in Transit
-LE devices not in programmed position
-LE slat skew condition exists

Question 18

How are LE flaps and Slats actuated

Answer 18

Hydraulic System B

Question 19

What is the AUTOSLAT system

Answer 19

The SMYD will automatically move the slats to the “full extended” position when the airplane approaches a stall condition. This only occurs at flap positions 1, 2 and 5

Question 20

What indications are present when the AUTOSLAT system is activated

Answer 20

None.

Question 21

How is the autoslat system operated.

Answer 21

Hydraulic system B.
Alternate: PTU from system A

Question 22

What is the Flap Load Relief System

Answer 22

Automatic flap retraction if airspeed exceeds VLE.

AA-LB
Only available at 30 and 40

LC +
Available at 10, 15, 25, 30 and 40

Question 23

What indications exist when the Flap Load Relief System is operating

Answer 23

The flap position indicator will be the only indication

Question 24

Describe the Alternate Flaps extension

Answer 24

An electric motor will operate when the alternate flaps toggle switch is held in the down position.

Question 25

What does arming the ALTERNATE FLAPS master switch do

Answer 25

Closes the Flap bypass valve (prevents hydraulic lock of flap drive unit)
Activates standby pump
Arms the position switch

Question 26

How are the LE devices moved during alternate flap extension

Answer 26

Hydraulic power from the standby system drives LE flaps and slats to the full extend position

Question 27

Once placed down, how do the LE devices retract in alternate mode

Answer 27

They cannot be retracted. They can only be extended

Question 28

Which leading edge devices are Not monitored for skew conditions

Answer 28

Slats 1 and 8

Question 29

Mach Trim systems automatically functions above what speed

Answer 29

.615 M