Primary Flight Controls

Question 1

5 Types of Primary Flight Controls

Answer 1

Elevator- Pitch about the lateral Axis
Rudder- Yaw about the vertical Axis
Ailerons- Roll about the longitudinal axis
Roll Control Spoilers- Roll about the longitudinal axis
Flaperons- Roll about the longitudinal axis

Question 2

What is a primary flight control

Answer 2

Primary control rotate an aircraft about its three axis- Creates a change in Flight Path or attitude

Question 3

control in pitch is controlled by

Answer 3

Rearward movement of the control column causing upward movement of the elevator causing it to pitch up

Question 4

Control in roll

Answer 4

Achieved by the ailerons or the roll control spoilers. Turning the wheel to the right causes the right aileron to move up and left to move down, therefore the aircraft rolls to the right

Question 5

Control In Yaw

Answer 5

Rudder- Moving the right rudder pedal forward

Question 6

Manual Flight Controls

Answer 6

Reversible as the pilot can feel the load on the control surface

Question 7

Fully powered Controls

Answer 7

Hydraulically or electrically- Not reversible as the pilot cannot feel the loading on the control surface. A form of artificial feel will be required

Question 8

Partially powered control

Answer 8

Hydraulic or electric- These are reversible as the pilot can feel the loading surface

Question 9

Manual control System Explanation

Answer 9

A manual Control System consists of a series of cables, push rods and chains that connect the pilots control column or yoke to the control surface

Question 10

What is a turnbuckle (Manual Flight Control)

Answer 10

It is important to have the correct tension in the control cables. if the tension is too low the cable will be loose, if the tension is too high the controls will be too stiff to move Cable tension is adjusted by means of turnbuckles.

Question 11

Temperature compensator (Manual Flight Control)

Answer 11

Maintains the correct temp if pressure is changes

Question 12

Pulley (Manual Flight Control)

Answer 12

Facilitates a change in direction for the cables

Question 13

Fairleads (Manual Flight Control)

Answer 13

Provide a guide for control to pass through frames or bulkheads preventing damage to cable/ control rod due to chaffing against the aircraft structure

Question 14

Primary & Secondary Control Stops (Manual Flight Control)

Answer 14

Fitted to limit the range of movement of the control surfaces

Question 15

Control Locks (Manual Flight Control)

Answer 15

Prevent damage to control surfaces in the event of high wind