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Elements and Performance Criteria

1. Research and evaluate the types of aeroplane and rotary wing aircraft power plant and their relative advantages and disadvantages
   • The types of aeroplane and rotary wing aircraft power plant are identified and compared in terms of relative advantages and disadvantages
   • Types of propeller are identified and compared in terms of relative advantages and disadvantages
   • Turbojet and turbofan performance is compared in terms of relative advantages and disadvantages
   • Maintenance requirements for aircraft power plants are identified
2. Apply basic power plant and propulsion system selection processes
   • Given required aeroplane use and performance characteristics an appropriate type of power plant is determined
   • An appropriate type of propulsion system is selected
   • Given required rotary wing aircraft use and performance characteristics an appropriate type of power plant is determined

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.
Types of aeroplane and rotary wing aircraft power plant include:	Piston engine (petrol or diesel) Rotary Turboprop or gas turbine and rotor Turbofan Turbojet
Types of propellers include:	Fixed pitch Adjustable pitch Constant speed Contra-rotating Tractor Pusher

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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:

identifying the different types of aircraft power plant and their relative advantages and applications

identifying power plant maintenance and monitoring requirements

identifying different types of propellers and their applications

selecting power plants for aeroplanes and rotary wing aircraft given the applicable performance characteristics.

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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:

basic power plant characteristics

basic propeller theory and characteristics

use of non-destructive testing (NDT) in power plant maintenance

power plant maintenance requirements including the use of engine condition monitoring.

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