AMET 113 - Propellers

This module covers propeller systems and vibration resulting from rotating mass.


Hours: 32 (Lecture Hours: 32)


Total Weeks: 15



Admission to Aircraft Maintenance Engineering Program


Non-Course Prerequisites:




Course Content:
T13-1 – Propeller Theory
- Explain how rotary torque from an engine is converted to thrust from a rotating airfoil
- Employing the correct nomenclature, explain the function of the external parts of fixed and variable pitch propellers
- Explain the variables that affect propeller operation
- Define classifications of propellers
- Describe the construction, assembly, and advantages of both wood and metal fixed-pitch propellers and ground- adjustable propellers
- Explain the purpose of variable pitch and constant speed systems
T13-2 – Propeller Systems
- Locate all applicable air regulations
- Explain the components and their operation in selected constant-speed and feathering propellers for small aircraft
- Explain the components and their operation in selected turbopropeller installations
- Explain components and their operations in selected large aircraft installations
- Explain the functions of the components in a synchronizing and synchrophasing system
- Explain the functions of the components in an autofeather system
- Demonstrate the proper procedures for removal and installation of various types of propellers
- Explain maintenance of propellers to airworthiness standards
T13-3 – Vibration Analysis
- Explain the transmission of sound in different mediums
- Demonstrate vibrations in rotating and not-rotating devices
- Explain nodes, anti-nodes, inherent vibrations, masking and harmonics
- Demonstrate vibration troubleshooting techniques
- Describe different types of test equipment and the function of their various components
- Demonstrate static balance of an aircraft propeller or a helicopter rotor system
- Demonstrate use of dynamic balance equipment to balance an aircraft propeller or a helicopter rotor system
- Discuss air regulations pertinent to vibration analysis and rectification


Grading System: Percentage


Passing Grade: 70%


Percentage of Individual Work: 100


Additional Comments:

T13-1= 25%
T13-2= 50%
T13-3= 25%


Textbooks are subject to change. Please contact the bookstore at your local campus for current book lists.