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IPSA > Voc anglais S2 > Flashcards

Voc anglais S2 Flashcards

1
Q

Angle of attack

A

Angle d’incidence

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2
Q

Shallow angle

A

Faible incidence

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3
Q

Steep angle

A

Forte incidence

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4
Q

Blade

A

Pale d’hélice

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5
Q

Blade chord

A

Corde de pâle, distance entre bord d’attaque et bord de fuite

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6
Q

Blade root

A

Pied de pâle d’hélice

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7
Q

Blade tip

A

Extrémité/pointe de la lame

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8
Q

Twisted blade

A

Hélice vrillée

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9
Q

To convert

A

Transformer

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10
Q

edge

A

bord

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11
Q

leading edge

A

bord d’attaque

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12
Q

trailing edge

A

bord de fuite

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13
Q

hub

A

moyeu d’hélice

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14
Q

pitch

A

pas d’hélice

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15
Q

coarse pitch

A

pas large

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16
Q

fine pitch

A

pas fin

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17
Q

propeller

A

hélice

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18
Q

fixed pitch propeller

A

hélice à pas fixe/calage fixe

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19
Q

ground adjustable pitch propeller

A

hélice à pas réglable (manuel)/calage réglable

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20
Q

variable pitch propeller

A

hélice à pas variable/calage variable

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21
Q

rotation motion

A

mouvement de rotation

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22
Q

RPM

A

Tours par minutes

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23
Q

screw

A

vis

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24
Q

span

A

envergure

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25
Q

to spin

A

vriller, faire tourner

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26
Q

stall

A

décrochage

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27
Q

(to be at a) standstill

A

(être à l’) arrêt

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28
Q

stationary

A

immobile, stationnaire

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29
Q

throttle

A

accélérateur

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30
Q

to hover

A

planer

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31
Q

airfoil

A

profil d’aile

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32
Q

What can the propeller do ?

A

converts the rotation motion of an engine into forward thrust.

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33
Q

What is a propeller ?

A

A propeller consists of several twisted blades attached to a central hub spun around by an engine.

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34
Q

What are the chord and the pitch ?

A

The chord is the width of a blade.
The pitch is the angle at which the blade is set.

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35
Q

What are the three main types of airplanes propellers ?

A
  • Fixed pitch propellers : angle of attach is set and can’t be changed
  • Ground adjustable propellers : pitch can be adjusted on the ground but remain fixed when in flight
  • Variable pitch propellers : pitch can be adjusted in flight
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36
Q

What happens when a wing moves through air ?

A

The air on the upper surface moves faster than on the lower surface.

greater speed = low pressure
slower speed = high pressure

37
Q

Complete the sentence :
The faster a propeller spins …

A

The faster a propeller spins, the more air is displaced per unit of time, and the more thrust is created.

38
Q

What’s a way to increase thrust ?

A

By using longer blades.
The greater their spinning are, the more air will be displaced (= more thrust).
We can also add blades to the propeller.

39
Q

What causes the lenght of blades to be limited ?

A
  • the height of the plane’s nose
  • the greater speed is produced, the more sound is produced and loss of efficiency when it reaches Mach 1.
40
Q

How to increase efficiency of the propeller blades ?

A

By using long, thin blades and composite materials to reduce weight.

41
Q

What is the blade pitch ?

A

It’s the angle at which the blade hits the air

42
Q

How is the blade twisted ?

A

The degree of twist varies from a high angle at the root to a shallow angle at the tip. This is because the tip hits the air at a much greater spinning speed than the blade.

43
Q

Width and lenght

A

Largeur et longueur

44
Q

What is a narrow angle ?

A

It’s referred to as a fine pitch that creates less drag because it reduces resistance and requires less engine power to spin.

45
Q

What is a steep angle ?

A

It’s a coarse pitch which makes more drag to spin and requires more engine power. But it creates less drag.

46
Q

What happens once the critical angle of attack is reached ?

A

A stall will occur. In this way, thrust stars lowering and drag increases.

47
Q

What happens to the angle of attack when a plane goes fast ? And when stationary ?

A

The angle of attack is reduced and the angle is perpendicular when stationary.

48
Q

What happens if a plane speed up ?

A

lower blade’s angle of attack into less thrust.

49
Q

How to increase cruise speed ?

A

increase angle of attack into coarser pitch into more thrust

50
Q

bankruptcy

A

faire faillite/faillite

51
Q

board of directors

A

conseil d’administration

52
Q

brand, make

53
Q

to compete

A

être en concurrence

54
Q

competitor

A

concurrent

55
Q

to comply with

A

se soumettre à, se conformer à

56
Q

deadline/to meet a deadline

A

date limite/respecter la date limite

57
Q

deal

A

accord, marché

58
Q

expense

59
Q

figure

60
Q

to fire, to sack, to dismiss

A

renvoyer, licencier

61
Q

growth

A

croissance

62
Q

headquarters

A

siège social

63
Q

to hire

64
Q

incentive

A

avantage, incitation, “carotte”

65
Q

internship (US), work placement (Br)

A

stage en entreprise

66
Q

invoice

67
Q

issue

68
Q

labour, work force, manpower

A

main d’oeuvre

69
Q

to lay off, to make redundant

A

licencier pour raison économique

70
Q

merger

A

fusion entre deux entreprises

71
Q

to outsource

A

sous-traiter

72
Q

polici

A

règle, politique intérieure

73
Q

position

74
Q

premises

A

les locaux

75
Q

to refund

A

rembourser

76
Q

reliable, thrustworthy

A

fiable, digne de confiance

77
Q

to relocate

A

déménager, délocaliser

78
Q

to retire/retirement

A

partir à la retraite/retraite

79
Q

to run

80
Q

shareholder

A

actionnaire

81
Q

stock exchange, stock market

82
Q

to go on strike, on strike

A

faire la grève, en grève

83
Q

susbsidiary

84
Q

to supply

85
Q

turnover

A

chiffre d’affaires

86
Q

trade union/trade unioninst

A

syndicat/syndicaliste

87
Q

to upgrade

A

mettre à niveau, promouvoir, surclasser

88
Q

wage, salary, pay/income

A

salaire/revenus

IPSA (23 decks)

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