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Elements and Performance Criteria

1. Research and identify the range of basic scientific principles and techniques relevant to avionic engineering
   • Research appropriate sources of information
   • Examine applications and report on the basic scientific principles relating to avionic engineering
   • Identify basic avionic techniques and associated technologies, software and hardware required to implement scientific principles relating to avionic engineering situations
2. Select basic avionic scientific principles and techniques relevant to particular avionic engineering applications
   • Select the relevant basic avionic scientific techniques and principles for particular avionic engineering situations
   • Select the relevant basic avionic techniques and associated technologies, software and hardware for particular avionic engineering situations
3. Apply the relevant basic avionic scientific principles and techniques
   • Apply the basic avionic scientific principles in a consistent and appropriate manner to obtain any required solution
   • Use appropriate calculations and coherent units in the solution of engineering calculations
   • Use significant figures in engineering calculations
   • Apply the basic avionic techniques and associated technologies, software and hardware in a consistent and appropriate manner to obtain required solutions
4. Quote the results of the application of the basic avionic scientific principles and basic techniques
   • Use an appropriate style to quote solutions for applications involving engineering calculations
   • Use an appropriate style to quote solutions for applications not involving engineering calculations

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.
Sources of information include:	Reference texts Manufacturer catalogues and industry magazines International aerospace organisation publications Websites Use of phone, email and fax information gathering
Avionic engineering refers to:	The engineering discipline concerned with the conceptual development, research, design, manufacture, implementation, installation, commissioning and maintenance of aerospace electrical, instrument, radio and electronic systems and components and related test equipment for civil and military applications
Basic avionic scientific techniques and principles involves:	The application of appropriate basic techniques (see below) supported by their mathematical skills and introductory knowledge of scientific principles to design, manufacturing, commissioning and maintenance-related tasks and projects relating to: electrical systems and related wiring and components (power generation, distribution, control interfaces with hydraulic and pneumatic systems, and caution and warning systems) mechanical and electro-mechanical flight instruments and indication systems (quantity, pressure, temperature and position) and components electronic systems and components (communications, radio navigation, pulse, display, automatic flight control, flight management and engine management) automatic test stations, adapters and software The applications may require the use of one or two basic avionic scientific principles together with a fundamental mathematical calculation leading to process, resources and system choices from a limited range of options. Basic techniques include: basic hand and power tool operations machining fitting welding moulding fabricating wiring programming techniques

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Performance Evidence

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria under the specified conditions of assessment, and must include:

selecting appropriate basic avionic scientific principles to suit specific applications

selecting appropriate basic avionic techniques and associated technologies, software and hardware to suit specific applications

applying basic avionic scientific principles to particular engineering situations

applying and manipulating appropriate formulas for applications involving engineering calculations

applying appropriate calculations to engineering situations

checking the validity of equations using dimensional analysis

applying basic avionic techniques and associated technologies, software and hardware in a manner appropriate to the application and identified scientific principles

referring solutions to the original aim of the application

quoting solutions in appropriate units, using appropriate significant figures

quoting limitations of solutions, due to assumptions, scientific principles and techniques used

presenting solutions referring to the original aim of the application.

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Knowledge Evidence

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

physics for electronics:

units and measurements

magnetic force

vectors

electric fields and potential

electric current and resistance

capacitance

work, power and energy

analogue electronics:

negative feedback amplifiers

differential amplifiers

operational amplifiers

amplifier frequency response

thermal circuits/heat exchangers

active filters

fault-finding

digital electronics:

characteristics of digital systems

number systems

Boolean algebra

logic circuits

logic families

construction and testing techniques

flip flop circuits

analogue to digital conversion

digital to analogue conversion

timing and control

combinational logic circuits

circuit theory:

Kirchhoff’s Current and Voltage Laws

Thevenin’s Network Theorem

Norton’s Network Theorem

Superposition Network Theorem

inductance, capacitance and resistance (LCR) series circuit analysis

LCR parallel circuit analysis

series and parallel resonance

electrical systems:

DC and AC circuit design principles

generators and motors

inverters

power supply, transformer, rectifier, filter and regulator

solenoids

circuit protection

wiring cables and looms

aerodynamics:

Bernoulli’s Theorem

the atmosphere

aerodynamic forces (lift, drag, weight and thrust)

stability and control (to a level not requiring the application of calculus)

thermodynamics – heat transfer principles (conduction, convection and radiation)

instruments:

airspeed measurement

altitude measurement

attitude indication

measurement of quantity, flow, temperature, pressure and position

control concepts and data communications:

servo and synchronous systems and components

data communication definitions and terminology

communications:

radio transmission and modulation

radio reception

microphones, amplifiers and speakers

transmission lines and antennas

pulse:

antennas

waveguides

transmitters/receivers

displays

light, sound and vibration:

wave behaviour – standing vs travelling waves, transverse and longitudinal

light – reflection, absorption, refraction, diffraction, spectrum, infrared, visible, ultraviolet (UV), transmission medium and engineering applications

sound – pitch, frequency, intensity (power), decibel scale, ‘noise dose’, spectrum, infrasound, audible, ultrasound, speed, natural frequency, resonance, transmission medium and engineering applications

vibration – sources, balancing, shaft alignment, measurement, damping and engineering applications

appropriateness of calculations

fundamental and derived quantities

the procedure for carrying out dimensional analysis

the concept of significant figures

the uncertainty of computations based on experimental data

the procedures for determining the significance of figures in calculations

the procedures for estimating errors in derived quantities.

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