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Fast Jets > Fast Jets > Flashcards

Fast Jets Flashcards

1
Q

3 types of caution

A

warning, caution , advisory

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2
Q

what do hydraulics do

A

force multiplication

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3
Q

what direction does force go in hydraulic column

A

every direction evenly

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4
Q

what does resevoir do hydraulics

A

cools and de-aerates

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5
Q

2 types of actuators

A

single acting eg. uplock, double acting eg. flaps

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6
Q

5 positives of hydraulics

A

simple, reliable, resist EM, good power to weight, rapid and precise response.

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7
Q

most common hydraulic system

A

undercarriage

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8
Q

how long does backup system lsat

A

indefinitely

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9
Q

PFCU

A

powered flying ocntrol unit- controlled movement of larger control surfaces to counter aerodynamic forces at higher speeds

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10
Q

2 warnings from hydraulics

A

high temp low pressure

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11
Q

what ensures under carriage operates in cirrect order

A

sequencing valve

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12
Q

what uses incompressability of oil

A

actuators, brake calipers, shock absorbers

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13
Q

fuseable plug

A

fis in wheel, melts at set temp and lets wheel deflate rather than explode

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14
Q

3 green lights

A

undercarriage down and locked

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15
Q

uplock

A

disengages under carriage prior to extending

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16
Q

what gas in blow down system

A

nitrogen

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17
Q

WoW?

A

weight on wheels. enables components to use on ground eg brakes, disables components for air eg weapons

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18
Q

split rim?

A

2 halves of wheel bolted together, allows tyres to be fitted without straetching over frames

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19
Q

re tread

A

replace rubber over carcass once max tread wear

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20
Q

what cant do to undercarriage once lowered in emergency

A

take back up

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21
Q

ABS varies?

A

frequency and pressure of brakes

22
Q

Brakes material and make up

A

carbon composite discs

23
Q

micro switches

A

control red/green attention lights

24
Q

differential braking

A

use brakes independantly to decrease turn circle

25
Q

creep marks

A

marks on tubed tyres and wheel to see if tyre moved relative to wheel so inner tube pump valve dont fuck up

26
Q

2x landing gear down lock

A

external over centre geometric, integral with actuator

27
Q

advantages of liquidO2

A

less bulk and weight

28
Q

why need to fly high?

A

get over high terrain, get over weather, increased turbo fan efficiency, increase cruise speed

29
Q

symptoms of hypoxia at 15-20k ft

A

euphoria or violent tendencies

30
Q

carbon monoxide poisoning fills what

A

your butthole. haemoglobin seats

31
Q

how long emergency O2 systems last

A

10min

32
Q

CAU

A

cold air unit

33
Q

symptoms of decompression sickness

A

bends, itchy skin, chokes, collapse

34
Q

PSID

A

pounds per square inch differential

35
Q

molecular seive

A

takes nitrogen out of air, cant cope with rapid decompression

36
Q

bottled O2 benfits

A

simple, use immediately

37
Q

cabin pressurization level

A

6-8k ft

38
Q

barotrauma

A

imbalance of pressure in middle ear

39
Q

what can GPU provide

A

28V or 200V

40
Q

CSDU

A

Constant Speed Drive Unit - msintains constant generator RPM/voltage output

41
Q

AC systems voltage

A

200v 3 phase 400 hz

42
Q

invertor

A

DC to AC

43
Q

converter

A

changes AC frequency

44
Q

TRU

A

transformer rectifier unit changes AC of one voltage to DC of another

45
Q

difference between normal and emergency contactor relay

A

emergency forces contactor open when on so if no power and goes off then contactor completes circuit

46
Q

3 main busbar categories

A

essential, non essential, vital

47
Q

component that links busbars

A

bus tie relay/contactor

48
Q

aircraft electrical systems must be maintained within…

A

set tolerence of engine speeds and electrical loads

49
Q

2 generators running in parallell must sense…

A

volt, phase, frequency

50
Q

load sharing control unit

A

ensures equal output from each generator

51
Q

system protection

A

fuse (too much voltage) circuit breaker (current) Reverse current cut out

52
Q

what disconnects battery in crash

A

crash switch

Fast Jets (3 decks)

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