m11.3 Flashcards by michael adisa

what are the 2 different truss type construction methods

pratt truss
warren truss

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common methods of sealant application

faying seal
fillet seal

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what is a faying seal

2 pieces of metal overlap
one piece will be exposed to airflow and joggled
sealant will be placed in between the 2 pieces

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when is a fillet seal use

when 2 pieces of metal are joined together

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how are electrical cables sealed

using rubber or silicon seals/ or sealant plates

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where are wings attached

either above or below the fuselage section

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why may the fuselage be notched or cut out

to accept a centre wing section

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how is the vertical fin attached

using bolted fittings on a frame member

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where are horizontal stabilizers attached to

some are attached directly to the vertical stab

some are attached to fuselage frames

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what are engine pylons attached to

the wings

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what are the pylon structural members called

spars (upper, middle, lower)

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what is transferred from the engines to the air frame

thrust

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what is a nacelle

a streamlined enclosure, that is attached to the pylon, to house the engine

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on modern a/c is the landing gear attached to the wings

yes

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how is the landing gear attached to the wings

the wing spar

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what are the names for seat tracks

L tracks or I tracks

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how is cargo manoeuvred in and out of a/c

PDUs, rollers, ball mats

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what are the cargo containers called

ULDs unit loading devices

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what are the different types components found in cargo loading systems

transport components

guidance components

restraining and locking components

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what does ARO stand for

anti roll out device

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what are PEDs and MEDs

passenger and main entry doors

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what type of door is a MED

plug types

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4 types of seal shapes

bulb type
diaphragm
flap types
multiform

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what is stated in ICAO annex 6

a/c over 45 500kg or pax of more than 60 should be equipped with an approved crew compartment door, able to resist small fire arms and grenade sharpnel

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what type door is a service door

non plug type

what types of door is a cargo door

non plug type

why are plug type doors used

for aircraft with cabin pressurisation

what materials must the cockpit door be made of

glass reinforced polymers kevlar and dyneema laminates of high strength glass fibre

what must all emergency exit doors have

an emergency escape slide

when the door is opened in armed mode what happens

the escape slide is deployed automatically

what type of doors are used for emergency exits

mainly plug type

what connects the door frame to the escape slide

the girt bar

what should you check if the bulk cargo door fails to stay open

check the counterbalance spring for the correct tension

how is the girt bar mechanism controlled

a mode selector lever (armed/disarmed)

how can cargo doors be operated

electrically, hydraulically, manually

what does a door synoptic display show

equipment centre access doors pax entry doors cargo compartment doors

what does an amber door symbol mean

the door is not closed, latched and locked

what does A and M mean on the mode selector handle

A - auto (green) M - manual (white)

what are the typical areas that have windows fitted

flight deck windows cabin windows observer windows

small and unpressurised a/c use what type of windows

windows constructed from a single pane of acrylic plastic or other clear plastic

what types of windows do pressurised a/c use

pax cabin windows flight deck windows

what is the fail safe design for pax windows

they have 2 layers of plastic

why is there a vent hole in the inner pane

so the pressure difference between panes is the same, to also prevent misting

how should windows be cleaned

use mixture of water with mild soap or isopropanol

how are flight deck windows constructed

lamination's of tempered glass/plastic one being conductive

what is special about the heated lamination

more resistant to impact breakage

what are the types of damage found on flight deck windows

delamination and bubbles chips, cracking, or scratches

scratches on a window bigger than what size require replacement

0.002 in

what is crazing

small fissures, which frequently start from small scratches in the face of the window

types of window repairs

grinding, polishing, buffing, grinding

what is the structure of a typical wing

left and right wing box as well as a centre wing box

what does full cantilever mean about wings

they constructed without the need for external bracing

what are the 3 types of wing construction

mono spar multi spar box beam

what is a mono spar construction

a construction that uses one main longitudinal member

what is a multi spar construction

uses more than 1 longitudinal member

what is box beam wing construction

uses 2 main longtudinal members, with connecting bulkheads for more strength

what is the most common wing spar

I beam spar, its top and bottom are called caps then the vertical section is called the web

on aircraft with stressed skin what type of panels are used

honey comb structure

what are the 3 basic fuel tank types

rigid removable flexible bladder integral

describe rigid tanks

they are riveted or welded together include features like baffles, and terneplates

where are removable tanks usually found

in the wings

what are bladder tanks made from

reinforced flexible material

why is it called an integral fuel tank

it forms a tank from within the airframe structure

why must integral fuel tanks have access panels

for inspection and repairs

what must be done before entering an integral fuel tank

fuel emptied and vapours purged

how are pylons designed

to be aerodynamic and reduce air resistance

other than engines what can pylons and also be attached to

wings

what profile does a nacelle have

round or elliptical

what is used to anchor control surfaces to the wing

wing spars

what is meant by a fixed stabiliser

also known as a tailplane, has 2 fixed aerofoils that are connected

what is meant by a stabilator

a one piece all-moveable tail that pivots up and down, does not require an elevator

what is meant by a variable incidence tail plane

referred to as a stabiliser, this is also a one piece all-moveable tail, but elevators are attached to the trailing edge

what are primary flight controls

controls for yaw, pitch, and roll

what are the secondary flight controls

speed braking and slat and flap system, as well as trim syst

what 3 control surfaces are connected to the wing rear spar

ailerons, spoilers, flap tracks

what are the 2 methods of balancing

aerodynamic balancing mass balancing

how is mass (static) balancing achieved

by adding weights to the leading edge of the control

where and how many toque box attachments are there

2 fwd pylon attachments 1 aft pylon attachment (3)

what is a firewall

a flame proof bulkhead that separates the engine compartment from the rest of the a/c

what does CS-25 state about fire walls

1- must be fireproof 2- made so that no hazardous liquids, gases, or flames can escape 3- each opening is sealed 4- protected against corrosion

what are firewalls made of

heat resistant materials, like stainless, inconel , or titanium

what are fire walls inspected for

security and cracking

what are engine mounts usually made from

chrome/nickel/molybdenum

other than attachment what is another purpose of an engine mount

suppress vibrations from the engine, as well as distribute them to the whole a/c safely

what limits excessive engine movement

metal snubbers

how are engine mount rings attached to the engine

dynafocal mounts

how are attachments between the vert stab and fuselage strengthened

body fittings, splice plates, stiffeners

what are spoiler panels made up by

upper and lower metallic or composite skin, with a honeycomb sandwich layer

how are engine mounts secured to the a/c

special heat treated steel bolts