Module Title:Propellers
Language of Instruction:English
Credits: 5
NFQ Level:7
Module Delivered In 2 programme(s)
Teaching & Learning Strategies: This module will be taught by Lectures & Tutorials and by using standard aircraft equipment, model aircraft and test equipment.
Module Aim: The student will understand the working principles of propellers and basic maintenance procedures on propellers as found on modern commercial aircraft used throughout the aircraft industry.
Learning Outcomes
On successful completion of this module the learner should be able to:
LO1 Describe the operating principles of the different types of propeller
LO2 Describe the maintenance that maybe performed on a propeller
LO3 Perform calculations to statically and dynamically balance a rotating mass
LO4 Calculate the thrust and efficiency of a propeller.
LO5 Determine the maximum torque that a propeller shaft can transmit
Pre-requisite learning
Module Recommendations

This is prior learning (or a practical skill) that is recommended before enrolment in this module.

No recommendations listed
Incompatible Modules
These are modules which have learning outcomes that are too similar to the learning outcomes of this module.
No incompatible modules listed
Co-requisite Modules
No Co-requisite modules listed
Requirements
This is prior learning (or a practical skill) that is mandatory before enrolment in this module is allowed.
No requirements listed
 

Module Content & Assessment

Indicative Content
Fundamentals
Blade element theory; High/low blade angle, reverse angle, angle of attack, rotational speed; Propeller slip; Aerodynamic, centrifugal, and thrust forces; Torque; Relative airflow on blade angle of attack; Vibration and resonance
Propeller Construction
Construction methods and materials used in wooden, composite and metal propellers; Blade station, blade face, blade shank, blade back and hub assembly; Fixed pitch, controllable pitch, constant speeding propeller; Propeller/spinner installation
Propeller Pitch Control
Speed control and pitch change methods, mechanical and electrical/electronic; Feathering and reverse pitch; Overspeed protection. Reverse pitch protection and associated electronic systems.
Propeller Synchronising
Synchronising and synchrophasing equipment
Propeller Ice Protection
Fluid and electrical de-icing equipment.
Propeller Maintenance
Static and dynamic balancing; Blade tracking; Assessment of blade damage, erosion, corrosion, impact damage, delamination; Propeller treatment/repair schemes; Propeller engine running.
Propeller Storage and Preservation
Propeller preservation and depreservation
Assessment Breakdown%
Continuous Assessment30.00%
End of Module Formal Examination70.00%
Continuous Assessment
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Short Answer Questions Each student will take short answer question exams, administered during term time for which a maximum of 30% will be awarded 1,2,3,4,5 30.00 n/a
No Project
No Practical
End of Module Formal Examination
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Formal Exam Each student will sit a formal written examination at the end of the module for which a maximum of 70% will be awarded. 1,2,3,4,5 70.00 End-of-Semester

ITCarlow reserves the right to alter the nature and timings of assessment

 

Module Workload

Workload: Full Time
Workload Type Frequency Average Weekly Learner Workload
Lecture Every Week 1.50
Tutorial Every Week 0.50
Independent Learning Time Every Week 2.00
Total Hours 4.00
 

Module Delivered In

Programme Code Programme Semester Delivery
CW_EEAER_B Bachelor of Engineering (Honours) in Aerospace Engineering 5 Mandatory
CW_EEACS_D Bachelor of Engineering in Aircraft Systems 5 Mandatory