AAS FINLAS Flashcards
is a self-contained network of components
that generate, transmit, distribute, utilize and store electrical energy.
aircraft electrical system
providing conversion to DC voltage to power
the DC busses.
TRU- Transformer Rectifier Unit
Primary power generation is normally ___
AC
Secondary AC generation from an_____ is usually provided for
use on the ground when engines are not running and for airborne use in the
event of component failure.
APU (Auxiliary Power Unit)
Tertiary generation in the form of____may also be incorporated into the system to provide
redundancy in the event of multiple failures.
Hydraulic Motor or RAT
In the event that all AC power generation is lost, a ______is included in the system so the
Essential AC bus can be powered from the aircraft batteries.
Static Inverter
describes the basic mathematical relationships of electricity.
Ohm’s Law
The
law was named after German Physicist
George Simon Ohm
states that the current (electron flow) through a
conductor is directly proportional to the voltage (electrical pressure) applied to
that conductor and inversely proportional to the resistance of the conductor.
Ohms law
is the movement of electrons.
Electric Current
describes a condition in some atoms where the
outer electrons are loosely bound to their parent atom.
Free Electron
is most easily described as electrical pressure force.
Voltage
determines the
amount of current that flows under the given voltage.
Resistance
are engine-driven as an accessory which
supply electric current to the electrical system for in-flight operations while
maintaining a sufficient electrical charge on the battery
Alternator/ Generator
is used as a terminal in the aircraft electrical system to connect the
main electrical system to the equipment using electricity as a source of
power
Bus Bar
regulator controls the rate of charge to the battery by stabilizing
the generator or alternator electrical output
Volt Generator
is used to monitor the performance of the aircraft electrical
system which shows if the alternator/generator is producing an adequate
supply of electrical power
Ammeter
reflects the total percentage of the load placed on the
generating capacity of the electrical system by the electrical accessories
and battery
Load MEeter
also known as flooded or wet batteries,
are assembled with electrodes (plates) that have been fully charged and dried.
Lead acid battery
added. An aircraft storage battery consists of
6 or 12 lead-acid cells connected in series. The open circuit voltage of the 6 cell
battery is approximately 12 volts, and the open circuit voltage of the 12-cell
battery is approximately 24 volts.
1 cell = 2 volts
contain all electrolyte absorbed in glass-mat separators with
no free electrolyte and are sometimes referred to as sealed batteries.
VRLA batteries (valve regulated lead acid betteries)
consists of a metallic box, usually stainless steel, plastic-
coated steel, painted steel, or titanium containing a number of individual
cells.
NICD Batteries
system which uses the two displays in
the center to give information on the A/C Systems
is defined as is a system on Airbus
aircraft for monitoring and displaying engine and
aircraft system information to the pilots. In the
event of a malfunction, it will display the fault and
may also display the appropriate steps of the
remedial action.
ECAM (electronic Centralized Aircraft monitoring)
system which uses the two displays in side
panel to give flight parameters and navigational
data.
Early EFIS models used cathode ray tube (CRT)
displays, but liquid crystal displays (LCD) are now
more common.
Electronic Flight Instrument Systems
is used to display the main
engine parameters, the Fuel On Board (FOB) and
the slat/flap position,
upper portion of the upper ecam
is used for warning, caution and
memo messages.
Lower portion of the upper ecam
The upper part is used to display the various
system pages, diagrams of the A/C systems,
upper portion of the lower ecam
is used to display permanent
data: TAT& SAT, clock and Gross Weight
Lower portion of the lower ecam
Centralizes and memorizes all information concerning
aircraft failures. Reading or printing of the failure information is done in the cockpit with any MCDU or
the printer.
Centralize fault Display interface unit
can be printed on ground.
Post flight report
- a device used to record the audio environment in the flight
deck for accidents and incident investigation purposes.
CVR
in commercial
transportation are capable of recording for a period of 2 hours.
Solid State Cockpit Voice Recorder (SSCVR)
