Mod 11 Start

Question 1

What are the 3 axis?

Answer 1

-lateral axis
-Longitudinal axis
-Vertical axis

Question 2

What are the 3 motion types?

Answer 2

-roll
-pitch
-yaw

Question 3

What is the lateral axis?

Answer 3

Pitch axis that runs from wing tip to wing tip

Question 4

What is the longitudinal axis?

Answer 4

The roll axis running from nose to tail

Question 5

What is the vertical axis?

Answer 5

The yaw axis running through the centre of gravity and oriented vertically

Question 6

What are the 3 types of aircraft flight controls?

Answer 6

-ailerons
-elevators
-rudder

Question 7

What are ailerons used for?

Answer 7

Used for roll control

Question 8

What type of control are ailerons ?

Answer 8

Instinctive

Question 9

What do ailerons do?

Answer 9

Cause deflection in Camberwell &;change I’m lift allowing a roll to one side to be initiated

Question 10

State the equation for dynamic energy?

Answer 10

1/2density*airspeed^2
Or
1/2pv^2

Question 11

What is energy on an ailerons proportional to?

Answer 11

The square of the airspeed

Question 12

What does a higher speed keen for ailerons?

Answer 12

More force needed to turn resulting in a higher structural load

Question 13

What are spoilers used for?

Answer 13

Used to supplement ailerons control

Question 14

What do spoilers do?

Answer 14

-reduces lift on wing with up going aileron
-counteracts effect of induced drag which causes adverse yaw
-helps with accurate turns & reduces requirement for large aileron deflection at high speeds

Question 15

What is differential operation of flight spoilers linked to?

Answer 15

The aileron control system

Question 16

What do elevators affect?

Answer 16

Longitudinal/pitch control around the lateral axis

Question 17

Where are elevators located and why?

Answer 17

Furthest away from centre of gravity to give greatest leverage

Question 18

What type of control are elevators?

Answer 18

Instinctive control

Question 19

What are stabilators?

Answer 19

Elevators + horizontal stabiliser

Question 20

How would one define the control for a stabilator?

Answer 20

A dual purpose control stick

Question 21

What is a stabilator a combo of?

Answer 21

Elevators + horizontal stabilisers

Question 22

What do stabilators do and how?

Answer 22

They control the pitch of the aircraft by rotating around their horizontal axis

Question 23

Are stabilators responsive or unresponsive to pilot controls?

Answer 23

Responsive

Question 24

Where are stabilators found?

Answer 24

Often found on light general aviation aircraft typically military

Question 25

What are stabilators typically equipped with?

Answer 25

Anti balance tabs

Question 26

What are variable incidence stabilisers also known as?

Answer 26

Trimmable horizontal stabiliser (THS)

Question 27

Describe the movement of a variable incidence stabiliser?

Answer 27

Limited range of movement

Question 28

What is the only thing a variable incidence stabiliser is used for?

Answer 28

Pitch trimming

Question 29

What effect does a variable incidence stabiliser have?

Answer 29

Reduces drag due to decreased requirement for elevator deflection

Question 30

What does an increased angle of attack mean for the nose attitude?

Answer 30

Nose up attitude

Question 31

What is the does an increased angle of attack ,Sam for the nose attitude?

Answer 31

Nose down attitude

Question 32

What does trim movement account for?

Answer 32

-adjustments in passenger & freight distribution -fuel consumption -flap & engine settings during flight

Question 33

What are canards?

Answer 33

A type of aerodynamic configuration used in flight control systems

Question 34

Describe canards configuration?

Answer 34

Forward wing configuration which places the stabiliser in front of the wing

Question 35

What influence do canards have on an aircraft system?

Answer 35

-pitch control -stability -stall prevention -high angle of attack amnouveres -control redundancy -lift & trim

Question 36

Where would you find the rudder?

Answer 36

Hinged to the rear of the vertical stabiliser

Question 37

What is the rudder used for?

Answer 37

Directional/yaw control

Question 38

What does the position of the rudder allow for?

Answer 38

Maximum leverage

Question 39

What axis does the rudder control?

Answer 39

Vertical axis

Question 40

If the rudder is deflected left what motion will the nose have?

Answer 40

Left nose motion

Question 41

How is the rudder controlled?

Answer 41

Through foot operated pedals

Question 42

What do rudder limiters do?

Answer 42

Restricts the amount of deflection with airspeed

Question 43

What happens with excess use of the rudder at high speed and what can it lead to?

Answer 43

Increases structural load which may lead to structural failure

Question 44

Simply put how are yaw and roll linked?

Answer 44

They create secondary effects on each other

Question 45

What happens if aircraft yaws

Answer 45

1 wing advances and other retreats causing increased lift on advancing wing and roll in direction of yaw

Question 46

What has a tendency to occur during roll and what does it cause?

Answer 46

Side slip causing force on the vertical stabiliser causing yaw in the direction of the roll

Question 47

Is side slip ideal for aircraft manouveres?

Answer 47

NOT ideal

Question 48

How can you resist roll during a turn?

Answer 48

Apply the rudder to make the turn more coordinated

Question 49

When is the rudder used independently ?

Answer 49

To correct direction in crosswind conditions or in the event of a single-engine failure

Question 50

When is the rudder used independently ?

Answer 50

To correct direction in crosswind conditions or in the event of a single-engine failure

Question 51

Where is adverse yaw common?

Answer 51

Light aircraft

Question 52

Where is adverse yaw common?

Answer 52

Light aircraft

Question 53

What is adverse yaw?

Answer 53

Down going aileron increases lift which then increases lift induced drag on the related wing

Question 54

What are frise ailerons?

Answer 54

Control surface with specially contoured leading edge