M11.9 Flight Controls

Question 1

How is flutter and vibration eliminated on a control surface

Answer 1

Hydraulic damping or static balancing

Question 2

What component maintains cable tension over varying temperatures

Answer 2

Cable tension regulator

Question 3

What prevents aerodynamic loads from pushing screwjack operated flaps back up

Answer 3

No back brake

Question 4

How is overrun of of a THS prevented

Answer 4

By switches and mechanical stops

Question 5

What is the result of the left and right wing ailerons both deflecting downward together

Answer 5

Droop assist for the flaps

Question 6

In a fly by wire system how is the hydraulic pressure regulated

Answer 6

Servo valves

Question 7

What prevents excessive rudder control movement at high speeds

Answer 7

Rudder limiter

Question 8

What is the purpose of the THS

Answer 8

Compensate for imbalance along the longitudinal axis

Question 9

How are spoilers retracted if hydraulic pressure is lost, if they are deployed

Answer 9

Blown down by airflow

Question 10

What axis does an aircraft roll around

Answer 10

Longitudinal