Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BTC 3/24 - ACFT > ACFT - Effects of Controls & Stability > Flashcards

ACFT - Effects of Controls & Stability Flashcards

1
Q

Fixed wing aircraft Components diagram (Part 1) (5)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Fixed wing aircraft Components diagram (Part 2) (3)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Fixed wing aircraft Components diagram (Part 3) (2)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Helicopter Components diagram (Part 1) (7)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Helicopter Components diagram (Part 2) (4)

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What 3 dimensions can an aircraft move in? (3)

A

All 3 axes pass through the aircraft’s centre of gravity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What Axis does the aircraft Pitch affect? (1)

A

Lateral Axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What Axis does the aircraft Roll affect? (1)

A

Longitudinal Axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What Axis does the aircraft Yaws affect? (1)

A

Vertical Axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What the components of the Empennage? (4)

A
  1. Horizontal stabiliser
  2. Elevators
  3. Tail fin
  4. Rudder
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the Tailplane? (3)

A
  1. AKA Horizontal stabiliser
  2. An aerofoil
  3. Assists longitudinal stability (Up/down pitching motion)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the Elevator? (2)

A
  1. Moving section at the rear of the stabiliser
  2. Activated by pulling or pushing the control column forward or backwards
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is a Tail fin? (2)

A
  1. Aerofoil
  2. Helps to give the aircraft directional stability by preventing yawing
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the Rudder? (2)

A
  1. Controls the aircraft’s Yaw
  2. Points the nose of the aircraft in the intended direction by altering the shape of the aerofoil and thereby changing the forces generated on it
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are Ailerons? (3)

A
  1. Small hinged sections on the outer part of each wing
  2. Move in opposite directions (Up / down)
  3. Results in a rolling motion around the longitudinal axis, acting through the centre of gravity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Ailerons, Control Yoke, Elevators, Rudder diagram

17
Q

What do Modern aircraft have to assist / power the control surfaces? (1)

A

Hydraulic systems

18
Q

How many redundancies do hydraulic systems usually have on modern aircraft? (1)

A

Usually 3

(Redundancy systems or electrical powered back up systems)

19
Q

What is a “Fly by wire”? (1)

A

A system that replaces the conventional manual flight controls of an aircraft with an electronic interface

20
Q

What is the secondary effect when the aircraft rolls? (2)

A
  1. Resultant lift reduces because gravity always acts vertically towards the Earth
  2. The pilot counteracts the loss of lift in a turn by applying more elevator (Applying more elevator increases the rate of turn)
21
Q

What is Adverse Yaw? (1)

A

The natural and undesirable tendency for an aircraft to yaw in the opposite direction of a roll

22
Q

What is Adverse Roll? (1)

A

When a pilot applies rudder to yaw the nose of the aircraft, the starboard wing will generate fractionally more lift as it travels slightly faster relative to the airmass

23
Q

Vee tail aircraft example

24
Q

Elevon aircraft example

25
What controls and axis does **trim** movements of **Pitch, Yaw, Roll**? (3)
Pitch - **Elevators - Lateral axis** (Blue) Yaw - **Rudder - Vertical axis** (Green) Roll - **Ailerons - Longitudinal axis** (Red)
26
What are the 3 **types of Stability** in aircraft? (3)
1. Stable 2. Neutrally stable 3. Unstable
27
What is **stability** in a **roll**? (1)
**Lateral** stability
28
What is **stability** in **pitch**? (1)
**Longitudinal** stability
29
What is **stability** in **Yaw**? (1)
**Directional** stability
30
What is **Directional stability** (1)
The surface area of the Vertical Stabiliser (tail fin) in relation to the side area of the fuselage and the sweep angle of wings can improve directional stability
31
What is **Longitudinal stability** (1)
The area of the Horizontal Stabiliser (tail plane) in relation to the length of the aircraft and its centre of gravity improves longitudinal stability
32
What is **Lateral stability** (1)
Wing design... **‘Swept’** wings help to increase lateral stability and enable higher speeds
33
What are the 2 types of wing angles on an aircraft? (2)
Dihedral Anhedral
34
What is **Dihedral wings**? (3)
**Angled up wings from the fuselage:** - Reduce loss of resultant lift when A/C is banking - Increases lateral stability
35
What is **Anhedral wings**? (3)
**Angled down wings from the fuselage:** - Centre of gravity in a high-winged aircraft is generally higher ("too stable") - Anhedral improves roll rate be reducing lateral stability

BTC 3/24 - ACFT (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions