Major Airframe Components

Question 1

What do A/C designs utilise?

Answer 1

• High wing
• Low wing
• High, mid and T-tail

Question 2

Two types of fuselage construction

Answer 2

• Monocoque
• Semi monocoque

Question 3

Monocoque

Answer 3

Structural skin

Question 4

Semi-monocoque

Answer 4

Non-stressed skin over frames (internal skeleton)

Question 5

Which methods are used to join components?

Answer 5

• Permanent
• Non-permanent
• Transitional

Question 6

What do stiffeners, stringers and longerons do?

Answer 6

Provides a base for the skin and prevent buckling

Question 7

Pressurised bulkheads

Answer 7

Forwards and aft withstand axial stress

Question 8

Non structural bulkheads

Answer 8

Forms divides between compartments

Question 9

What does the pressure hull experience?

Answer 9

Hoop and axial stress during a pressurisation cycle

Question 10

What does the wing mainly contain?

Answer 10

Spars and ribs

Question 11

What is the wing shape defined by?

Answer 11

Ribs and longerons to which the skin is fitted

Question 12

What is flutter?

Answer 12

Oscillation caused by interaction between CG and CP and torsional stiffness (wing flex)

Question 13

Where can flutter occur?

Answer 13

Wings and horizontal stabiliser

Question 14

Flutter countermeasures

Answer 14

Forward mounted engines (moves CG forwards)

Question 15

When are lateral forces imposed?

Answer 15

Asymmetric flight

Question 16

When are lateral forces imposed?

Answer 16

Asymmetric flight