Highlights Flashcards by Kenneth Flores

This waveforms at the leading edge when the flight speed exceeds the speed of sound

Bow waves

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What happens to the strength of metalic structure when it is heated due to highspeed condition of flight

Decrease in strength

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what limits the rudder deflection?

Airspeed

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Tab that deflects in the same direction as the control surface

Anti-balance tab

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Value of critical mach number

Mach 0.8, the local mach number increases to1(equal to the speed of sound)

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Reference point zero of z axis (fuselage datum) on airbus A320

240 milimeters above the floor beams

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Vertical planes parallel to the body centerline plane

Body buttock line

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Major zone 400

Powerplant (and Struts)

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Type of stress which a combination of compression and tension

Bending

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A duplication of certain structural members to ensure that if one member failed,the other would assume the load of the failed member.

Fail Safe

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Type of Construction in which a rigid framework made up of members such as beams, struts, and bars to resist deformation by applied loads

Truss type construction

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Operation of bulk cargo door

it opens inwards and it is operated manually

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Skin shares the load with the stringers,the frames and with an additional clip

Semi-monocoque - frames are joined together by stringers and skin with clips.

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Air is removed from the lavatories and galleys by

Extraction fan

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Where does pack located?

Center wing box

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Where does pack and zone controllers are located

avionics compartment/electric and electronic compartment (pack controller location)

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primary components of air cycle machine

• compressor
• turbine
• fan

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Ways of heating ventilated cargo compartment

• Using hot bleed air from pneumatic system
• and electrical heaters

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Pneumatic left and right wing isolates

Crossfeed valve & Isolation valve

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Regulates the amount of trim air that is mixed with the cold air

Zone Controller

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main components of recirculation system

 airfilters,
 electrical recirculation fans
 check valves (prevent a reverse airflow to the under floor area)

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Outflow valve close in what cabin altitude

15,000 ft

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Supply fresh ambient air to the mixing unit when all packs fail during flight

Emergency ram air inlet

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How does ELT activates when it is attached to the aircraft

GLoad

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Control of the cockpit seats (m11.07,p6)

Manually and electrically controlled

Razor power supply does need

110V AC, 60Hz

Flight crew safety harness

5 point type harness and, single point release

Components inside the cargo compartment to move the ULD's

Power Drive Unit (PDU)

The greater the number of connections, the greater the total mechanical play and the less accurate the transmission

Control cables

it is installed to provide the pilot with an artificial feel of the airload

Feel Unit

Type of drain valve that uses a drainline that runs from the lowest point in the fuel tank to the valve housing.

Indirect drain valves

Refueling mode that is an alternative procedure if electrical power to there fueling valves is not available.(p52)

Override mode

Has a very low freezing point of minus 60°C.The american name for this type of fuel is JP4. (p4)

Jet B

Usualy installed on ground service panels of the aircraft.They allow manual filling of the reservoir and the other provide manual opening of the cargo doors.

Fixed Displacement Pump (FDP)

Uses compressed nitrogen and hydraulic fluid to absorb the shocks.(p42)

Shock strut

Transmit vertical loads and drag loads in to the airframe without transferring torque to the structure and to the outer cylinder during structural deflections.

Spherical bearing

Too much oil in shock strut

Shock strut operates harshly

Too much gas in shock strut

Soft shock strut

Oxygen bottle of gaseous oxygen located

Passenger Service Unit(PSU)

Sources of pneumatic

 Engine (Bleedair)  Auxiliary Power Unit (APU),  Ground Carts (HPGround)

Where in all pneumatic system performance indications are shown,on some aircraft this page is called the ECS page(EnvironmentControlSystem).

Eicas Bleed page - pneumatic system and indication page

Controls the sequence and timing of the flush cycle

Flush Control Unit

Waste water system directs the waste water from lavatories and galleys out of the aircraft through (readp24)

drain lines and drain masts

Normal flight cabin pressure for sufficient oxygen and maximum diferential pressure of structural design at what altitude.

8000 ft

This is the electrical device used in the cargo loading system in order to move the cargo containers and palets inside the cargo compartments

Power drive units

Where does packs system located? (Aircon)

Center wing box

Airconditioning tasks

cools, pressurizes, heat and ventilates

Normal cabin altitude

8000 ft

why do we need the cabin altitude at 8000ft

Passenger comfort and structural design

Movement of sidestick in pitch action

Forward and backward

Can stop the aircraft at the selected deceleration level without the pilots touching the brake pedals.

Auto Brake System

steering for high speed turns

Rudder pedals

to move the ULDs in the necessary direction and to their bays

Power drive unit(PDU)

initiates a vibration of the control columns to alert the pilots when the aircraft approaches a stall condition

Stick shaker

have a heat shrinkable sleeve, which prevents adjustment of the end fitting.

Non-adjustable Rod

Are used to transmit torque for rotary movements

Torque tubes

used to change the hydraulic flow to the cylinder to produce an extend or a retract motion, sometimes called metering valve.

distribution control valve

connects the left and right cylinder chambers and in the pressurized position it shuts the bypass and connects the control valve to the cylinder

distribution bypass valve

used as a gust damper for the flight control surfaces when the aircraft is on ground. Used when 2 servo control units are connected to the same flight control surface

Damping mode

it uses hydraulic power to move the surface ,but the hydraulic power does not come from an external system. It is generated inside by an electro motor driven hydraulic pump,used in most modern Airbus aircraft

Electro hydraulic actuator

this oxygen supply is intended for emergency and first aid use, it also provides eye protection for the user in the form of smoke hoods , normally stored in the cockpit and near the exits in the passenger compartment.

Portable oxygen equipment

Removes moisture and waste particles from the waste tank air before it is vented overboard by the vacuum blower.

Water separator

check valve that prevents backflow of water from the toilet into the potable water system

Anti siphon valve

opens the solenoid operated rinse water valve for about one second. Sprays water from the potable water system into the toilet bowl

Flush control unit

prevents waste leakage from a faulty drain valve

Safety valve

transmits hydraulic power through the rack and pinion mechanism to steer the nose gear wheels

Steering actuating cylinder

What is true about landing gear

Steerable, no breaks

-used to open forward nose gear doors that are mechanicaly locked in the closed position by a door uplock

Ground control handle

receives signals about the position of the doors and the gears from proximity sensors and sends a command signal to the selector valve manifold

Landing gear control interface unit (LGCIU)

can be used to manually overide the solenoid if there is a failure in the system. Allows you to select the UP position of the control lever at anytime, even when the aircraft is on the ground.

Lock override push button