FLIGHT CONTROLS

Question 1

Which flight controls are conventionally powered? Are the ailerons connected directly to the Captains or Co-pilots control wheel?

Answer 1

The ailerons and elevator are cable powered, the ailerons are connected to the FO control column.

Question 2

Which flight controls are hydraulically powered?

Answer 2

Rudder, spoilers and flaps.

Question 3

How is roll control achieved?

Answer 3

Spoilers and ailerons, the outboard spoilers lockout above 140/150kts

Question 4

How is aileron trim applied?

Answer 4

The RH spring tab is repositioned.

Question 5

How can you depressurise the roll spoilers?

Answer 5

Pressing the SPLR 1/2 pushlight or the INBD/OUTBD pushlights.

Question 6

With the roll disconnect pulled, what does each control wheel control? Will SPLR 1 and SPLR 2 switch-lights illuminate in this situation?

Answer 6

The captain controls spoilers and the FO controls ailerons. The pushlights will not illuminate, they illuminate if a jam occurs.

Question 7

What is different about the spoilers above 140kts?

Answer 7

The outboard spoilers are locked out.

Question 8

When do the ROLL SPLR INBD or ROLL SPLR OUTBD caution lights illuminate individually?

Answer 8

If one set of spoilers gets stuck/jammed.

Question 9

What is the source of hydraulic pressure for the rudder?

Answer 9

Both main hydraulic systems

Question 10

What effect does airspeed have on rudder hydraulic pressure (200/300)?

Answer 10

Hydraulic pressure is limited to 900PSI above 150kts(300), 140kts(200) and is 1500PSI below

Question 11

What happens if a rudder control system jams? Is there an airspeed reduction?

Answer 11

RUD 1/2 pushlight would be pressed and speed limited to maximum 200kts.

Question 12

When is rudder deflection restricted?

Answer 12

The rudder is limited to 12deg deflection both ways at flap 0, full rudder operation at flap 15 or greater. (18R, 16L)

Question 13

Is there a gust lock for the rudder? What flight controls are locked when the CONT LOCK handle is pulled to the lock position?

Answer 13

Ailerons and elevator are locked by the cont lock, it also limits NH to 84%. The rudder doesn’t have a lock.

Question 14

How is rudder trim applied?

Answer 14

The rotary switch on the centre console. there is a fast and slow function depending on deflection of the switch. rudder can be trimmed up to 10deg from set position.

Question 15

How is elevator trim normally applied?

Answer 15

Trim wheels either side of throttle quadrant.

Question 16

When is the standby elevator trim system used? How is it applied?

Answer 16

The standby trim is applied by switching the guarded switch. the toggles on the pilot’s side console use the autopilot trim servo to trim the tailplane.

Question 17

What can you do if a jam occurs in the elevator system?

Answer 17

The pitch disconnect can be pulled which will allow each pilot’s control column to control their respective side elevator.

Question 18

What hydraulic system powers the flaps? With the flaps retracted how many degrees left / right is rudder travel restricted to?

Answer 18

No. 1 hydraulic system. 12Deg either side.

Question 19

How is the solenoid shutoff valve opened? How long is hydraulic pressure available to the flaps?

Answer 19

The flap selector lever sends a signal to the solenoid and this remains open for 70 seconds.

Question 20

What brings on the FLAP POWER caution light?

Answer 20

If the hydraulic pressure is less than 1500PSI, or the valve is open greater than 70seconds.

Question 21

What will bring on the FLAP DRIVE caution light?

Answer 21

If the primary flap drive fails.

Question 22

How many stall warning systems are there? Does flap position have any effect on stall warning?

Answer 22

2 stall warning systems which compensate for flap.

Question 23

What indication is there of stall warning computer failure?

Answer 23

L/R stall warn caution light will illuminate aswell as the master caution.

Question 24

If a stall warning computer fails, will the system still operate 200/300?

Answer 24

Yes(300)

Question 25

What will be the flight deck indication of a jammed aileron cable?

Answer 25

The control wheel will not rotate.

Question 26

What does a ROLL SPOILER INBD/OUBD HYD caution mean?

Answer 26

Loss of pressure to the respective spoiler.