Flight Controls

Question 1

Which primary flight controls are hydraulic?

Answer 1

Elevators, Rudder, Roll Spoilers (MFS)

Question 2

In a R and L hydraulic failure condition, how are the elevators and rudder operated?

Answer 2

Elevator - Manual Reversion (cables) through PCUs

Rudder - Lower rudder PCU via the Aux Hydraulic System (pump)

Question 3

Is the Yaw Damper active on the ground?

Answer 3

Yes, ON until 60kts, then disabled, re-enabled with weight off wheels

Question 4

Is there a trim tab on the rudder?

Answer 4

No, the rudder surface is deflected directly

Question 5

Ground spoilers are available when?

Answer 5

• Switch is ARM
• Idle Thrust
• 2 of 3 conditions:
• –WOW
• –RA < 7ft
• –Wheel Speed > 16kts

Question 6

The stick pusher can be disabled in which ways?

Answer 6

• MSW
• Stall Push off
• CB1 #B-12

Question 7

Maximum Altitude with the YD off?

Answer 7

31,000ft

Question 8

How do you turn off the roll spoilers?

Answer 8

By selecting the Roll Spoilers PBA to the OFF position as directed by the checklist for a Roll Control Jam on the Captains side

Question 9

When the roll disconnect is activated, who controls the roll spoilers and who controls the ailerons?

Answer 9

The pilot controls the roll spoilers and the copilot controls the ailerons

Question 10

The gust lock secures which controls?

Answer 10

• Ailerons
• Thrust Levers
• PCU’s trap pressure for elevator and rudder dampening for approx. 12 hours after hyd pressure is removed

Question 11

What flight controls have trim tabs?

Answer 11

Aileron - left side only

Question 12

What systems use Primary Trim?

Answer 12

• Autopilot
• Config Trim
• Mach Trim

Question 13

How does Primary Trim differ from Secondary Trim?

Answer 13

• Primary Trim is variable speed according to configuration/IAS
• Secondary Trim constant 0.2 degrees per sec.

Question 14

What is the purpose of the rudder travel limiter?

Answer 14

Restricts rudder movement as speed increases to avoid empennage damage or rudder failure