NONE 20260608111921856 wseas/wseas content-registration-form+ja@crossref.org content-registration-form Engineering World 2692-5079 Christos Papakitsos Laboratory for Mechanics and Defence Applications (LAMDA) Hellenic Army Academy Vari, Attica GREECE Maria Kagka Department of Industrial Design & Production Engineering University of West Attica Egaleo, Athens GREECE Ilias Chrysocheris Department of Industrial Design & Production Engineering University of West Attica Egaleo, Athens GREECE Evangelos Papakitsos Department of Industrial Design & Production Engineering University of West Attica Egaleo, Athens GREECE Nikolaos Laskaris Department of Industrial Design & Production Engineering University of West Attica Egaleo, Athens GREECE Ilias Panagiotopoulos Laboratory for Mechanics and Defence Applications (LAMDA) Hellenic Army Academy Vari, Attica GREECE Dionysios E. Mouzakis Laboratory for Mechanics and Defence Applications (LAMDA) Hellenic Army Academy Vari, Attica GREECE One of the most important inventions of humanity, which is also one of the most complex constructions, is the flying vehicles and their engines. In this study, we will present the main types and applications of aircraft motors, examining the various types of internal combustion engines and the principles of operation of heat engines. More specifically, the main components of gas turbines and their basic characteristics will be discussed. 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