11.3.1 - Fuselage - 3q Flashcards

1
Q

Controlled leakage is more than what?

A
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2
Q

Plug type door = ?
Non-Plug type door = ?

(Examples)

A
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3
Q

Craiging’ is caused by what?

A
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4
Q

Intercostals (web)’ are what?

A
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5
Q

Crease beams’ are what?

A
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6
Q

Passenger = ? Structural panes

A
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7
Q

What is the purpose of Window vinyl Interlayer?

A
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8
Q

Cargo bay panels are made from what? (2)

A
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9
Q

What should you clean acrylic windows with?

A
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10
Q

Moisture drains are open and closed when?

A
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11
Q

Which expands more:
Metal or Acrylic?

A
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12
Q

Zone D Cargo Windows = ?

A
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13
Q

Class D Cargo Windows = ?

A
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14
Q

Passenger seat rails form part of what?

A
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15
Q

Floor beams are subject to what loads and are attached to what?

A
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16
Q

Glare = ? (2)

A
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17
Q

Grazing’ is caused by what?

A
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18
Q
A

Only replace the window if the ‘bubbling’ affects vision

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19
Q
A

two structural panes

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20
Q
A

from the inside

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21
Q
A

cabin pressurised air

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22
Q
A

one inch increments

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23
Q
A

demist, anti-ice and maintain stength and toughness

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24
Q
A

Primary structures

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25
Q
A

cabin air pressure

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26
Q
A

Outer

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27
Q
A

‘Z’ section

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28
Q
A

to improve on brittle behaviour

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29
Q
A

Acrylic

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30
Q
A

larger coefficient of expansion than surrounding structure

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31
Q
A

maximum loadings

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32
Q
A

class B

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33
Q
A

separation of the glass from the vinyl interlayer

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34
Q
A

40^C

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35
Q
A

By dorr stops

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36
Q
A

Holds the door while rotating to the locked position

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37
Q
A

pulls the slide out of its pack

38
Q
A

never carry pressure loads

39
Q
A

By the back legs while the front attachment provides anti rattle

40
Q
A

soft rubber

41
Q
  1. When acrylic and sheet metal is joined together, allowance should be made for
    galvanic corrosion of the metal
    expansion of the acrylic due to heat
    expansion of the metal due to heat
A

expansion of the acrylic due to heat

42
Q

Stringers are primary structural members.
Other longitudinal members considered primary are the ? and the ?

A

crease beams and keel beams

43
Q

Name the type of beam that extends along each side of the fuselage level with the top of the floor

A

Crease beams

Known as such because they are attached to the fuselage skin at the ‘crease’ formed by the intersection between the upper and lower lobes of the fuselage cross sections

44
Q

Blowout panels do what?

A

The blowout panels ‘blow out’ in such a situation to release the excess pressure of the cabin and thus safeguard the structural integrity of the floor

45
Q

Name the two types of leakage that occur in an aircraft pressure vessel

A
  1. Controlled
  2. Uncontrolled
46
Q

What is meant be ‘‘Uncontrolled leakage’’ in an aircraft pressure vessel?

A

Uncontrolled leakage is that in which air escapes around the door and window seals, control cables and other openings

Note: Controlled leakage would be the outflow valve

47
Q

How is the door seal installed in the retainer and why?

A

inflation holes show to the inner side of the cargo compartment

Due to the higher internal pressure, the door seal is inflated

48
Q

A Plug type door might have what?

A

Gates

or it might just be a little bigger than the dimensions of the doorjamb in which it fits

49
Q

Doors that close from the outside are called?

A

Non-plug type doors

50
Q

What do drift pins in the middle of the cargo door do?

A

It decreases the contour off set between the fuselage and the door

51
Q

What happens the drift pins when the cargo door is correctly locked?

A

the extended drift pins engage with the pockets of the fuselage frame

52
Q

What keeps the cargo door in the closed position?

A

The locking hooks keep each cargo door in the closed position.

53
Q

What is the middle layer of the cockpit window made of?

A

Synthetic middle layer

54
Q

Why is heating the windshields necessary ? (one main reasion)

A

increases the flexibility of the windshields

55
Q

cloudy delamination occurs ?

A

if moisture penetrates

56
Q

How should cockpit windows be wrapped for storage/transport?

A

in acid free paper and cellulose wadding

57
Q

The cockpit windor should be stored in what conditions? (temperature wise)

A

temperature of between 10^C and 21^C
in well ventilated conditions

58
Q

What should be kept uppermost in storing cockpit windows?

A

thicker glass ply of a laminated panel is kept uppermost to prevent delamination

59
Q

Cabin Windows
Where and why is there a small ventilation hole?

A

in the inside window to allow for adjustment for pressure differences between the inside and outside window

60
Q

Cabin Windows

Each window is made of two panes that are capable of what?

A

Each of the two panes can carry the full differential cabin pressure on their own

61
Q

What is the Advantage and Disadvantage of Cabin windows being synthetic?

A

Advantage - Clearness and Weatherproof

Disadvantage - Sensistive to solvents, stripping compounds, UV and air pollution

62
Q

Where fumes of solvents occur, cabin windows in ? must be covered

A

5m radius

63
Q

How to do Window cleaning of Acrylic panels?

A

Warm water (40^C maximum temperature) and soap

64
Q

What should be noted with scratches in terms of windows?

A

Scratches can usually be removed by polishing

Scratch depth is the controlling factor

65
Q

Stress Crazing consists of what?

which may cause?

A

Crazing consists of multiple hairline surface cracks

may cause a serious drop in strength

66
Q

Crazing caused by ? can be much more serious and?

A

Crazing caused by solvents can be much more serious in that the window can suffer an appreciable loss of strength

67
Q

Acrylic sheets in storage should not be exposed to what?

especially when?

A

Strong sunlight

Especially when light shines through a glass window which might cause a ‘lens’ formation, as this may result in local overheating

68
Q

Cut outs in the tracks are spaced?

A

1 inch apart

69
Q
A

Fibreglass and resin

70
Q
A

spars

71
Q
A

bulkheads

72
Q
A

Stanchions

73
Q
A

not locked

74
Q
A

AL 7075

75
Q
A

manually by winding

76
Q
A

Both B and C are correct

77
Q
A

Methylated spirits

78
Q
A

are open when the cabin is depressurised

79
Q
A

to equalise pressures above and below the floor after the loss of cargo compartment door

80
Q
A

before a crack starts, to slow its rate of propagation

81
Q
A

install critical stress panels or plates

82
Q
A

longitudinal fuselage members attached at each end to adjacent frames

83
Q
A

Main Spars

84
Q
A

too much kinetic energy on landing

85
Q
A

in the hangar with the aircraft on jacks

86
Q
A

help bonding for top-coat

87
Q
A

stabilisers, elevators and rudder, all surfaces for control and stability, French verb empenner ‘‘to feather an arrow’’

88
Q
A

humidity

89
Q
A

two panes

90
Q
A

the door is not fully or correctly locked

91
Q
A

Bending, compression and tensile

92
Q
A

provide venting should a differential pressure build-up across the floor