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Module 11 > Mod 11 Start > Flashcards

Mod 11 Start Flashcards

1
Q

What are the 3 axis?

A

-lateral axis
-Longitudinal axis
-Vertical axis

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2
Q

What are the 3 motion types?

A

-roll
-pitch
-yaw

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3
Q

What is the lateral axis?

A

Pitch axis that runs from wing tip to wing tip

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4
Q

What is the longitudinal axis?

A

The roll axis running from nose to tail

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5
Q

What is the vertical axis?

A

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

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6
Q

What are the 3 types of aircraft flight controls?

A

-ailerons
-elevators
-rudder

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7
Q

What are ailerons used for?

A

Used for roll control

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8
Q

What type of control are ailerons ?

A

Instinctive

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9
Q

What do ailerons do?

A

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

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10
Q

State the equation for dynamic energy?

A

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

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11
Q

What is energy on an ailerons proportional to?

A

The square of the airspeed

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12
Q

What does a higher speed keen for ailerons?

A

More force needed to turn resulting in a higher structural load

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13
Q

What are spoilers used for?

A

Used to supplement ailerons control

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14
Q

What do spoilers do?

A

-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

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15
Q

What is differential operation of flight spoilers linked to?

A

The aileron control system

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16
Q

What do elevators affect?

A

Longitudinal/pitch control around the lateral axis

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17
Q

Where are elevators located and why?

A

Furthest away from centre of gravity to give greatest leverage

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18
Q

What type of control are elevators?

A

Instinctive control

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19
Q

What are stabilators?

A

Elevators + horizontal stabiliser

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20
Q

How would one define the control for a stabilator?

A

A dual purpose control stick

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21
Q

What is a stabilator a combo of?

A

Elevators + horizontal stabilisers

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22
Q

What do stabilators do and how?

A

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

23
Q

Are stabilators responsive or unresponsive to pilot controls?

A

Responsive

24
Q

Where are stabilators found?

A

Often found on light general aviation aircraft typically military

25
Q

What are stabilators typically equipped with?

A

Anti balance tabs

26
Q

What are variable incidence stabilisers also known as?

A

Trimmable horizontal stabiliser (THS)

27
Q

Describe the movement of a variable incidence stabiliser?

A

Limited range of movement

28
Q

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

A

Pitch trimming

29
Q

What effect does a variable incidence stabiliser have?

A

Reduces drag due to decreased requirement for elevator deflection

30
Q

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

A

Nose up attitude

31
Q

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

A

Nose down attitude

32
Q

What does trim movement account for?

A

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

33
Q

What are canards?

A

A type of aerodynamic configuration used in flight control systems

34
Q

Describe canards configuration?

A

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

35
Q

What influence do canards have on an aircraft system?

A

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

36
Q

Where would you find the rudder?

A

Hinged to the rear of the vertical stabiliser

37
Q

What is the rudder used for?

A

Directional/yaw control

38
Q

What does the position of the rudder allow for?

A

Maximum leverage

39
Q

What axis does the rudder control?

A

Vertical axis

40
Q

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

A

Left nose motion

41
Q

How is the rudder controlled?

A

Through foot operated pedals

42
Q

What do rudder limiters do?

A

Restricts the amount of deflection with airspeed

43
Q

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

A

Increases structural load which may lead to structural failure

44
Q

Simply put how are yaw and roll linked?

A

They create secondary effects on each other

45
Q

What happens if aircraft yaws

A

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

46
Q

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

A

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

47
Q

Is side slip ideal for aircraft manouveres?

A

NOT ideal

48
Q

How can you resist roll during a turn?

A

Apply the rudder to make the turn more coordinated

49
Q

When is the rudder used independently ?

A

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

50
Q

When is the rudder used independently ?

A

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

51
Q

Where is adverse yaw common?

A

Light aircraft

52
Q

Where is adverse yaw common?

A

Light aircraft

53
Q

What is adverse yaw?

A

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

54
Q

What are frise ailerons?

A

Control surface with specially contoured leading edge

Module 11 (64 decks)

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