AERONAUTICAL PROPULSION SYSTEMSThis report is an investigation into the evolution and mechanical functionality of aeronautical propulsion systems, from the first attempts at propulsion to the systems of modern propulsion such as propeller, internal combustion engine, ramjet and gas turbine. As this report will focus on aeronautical propulsion systems, rocket propulsion systems are almost exclusively involved in astronautics and will not be discussed. As an engineer, he will have to decide on the best combination of engine and thrust device to attach to an aircraft. This report covers technical developments in the advancement of propulsion systems. This, in conjunction with the social, environmental and safety impacts that an engineer must have overcome, must also be covered in this investigation. The inclusion of mathematical procedures is avoided wherever possible to focus on clear and concise content. Many different sources were used for this investigation, including: Websites, books, and active information.INTRODUCTIONThe need for a propulsion system to provide thrust is essential to any aircraft. This comes in many forms and an engineer will need to decide on the best propulsion system to integrate into a specific aircraft. From mechanical functionality to the use of different forms of thrust; these systems have evolved since the first conception of aviation. As it is estimated that more than 3 million passengers (http://www.arabnews.com/news/537081) fly every day and therefore propulsion systems play a huge role in modern society, consequently leading to social, environmental and safety concerns.Before Expanding on the main topic, it is necessary to establish some basic fundamentals.THUSHWhat is thrust?Aeronautical accessory...... middle of paper... ...wear appropriate PPE. This can also be reduced through the traditional riveting process used in the production of propulsion systems. Recent advances in rivet technology have significantly reduced noise levels in some specialized riveting processes. This can be incorporated to reduce noise and reduce or eliminate the need for hearing protection. Fine dust Fibers from fine materials such as asbestos and silica are known to cause fatal lung diseases. Such hazards are produced by fine dust when fiberglass or hardened carbon fiber components must be cut with a grinder. This generates a large amount of fine dust that can easily penetrate deep into workers' lungs, causing discomfort and causing skin irritation. Therefore, designated cabins where dust is vented out of the factory are required, where workers in the cabin wear full protective suit and a directory..