Fully updated and revised, the second edition of this introductory text on air-breathing jet propulsion focuses on the basic operating principles of jet engines and gas turbines. A state-of-the-art review of turboramjet engines, hypersonic applications, geared turbofans, and adaptive cycle engines, accompanies an examination of emissions and pollutants, greatly expanding the importance of power generation gas turbines in industrial applications, and ensuring that students will be introduced to the most current trends in the subject. With completely rewritten chapters on the operating characteristics of components and ideal and nonideal cycle analysis, additional SI units in numerous examples, new and expanded end-of-chapter problems, and updated accompanying software, this remains the ideal text for advanced undergraduate and beginning graduate students in aerospace and mechanical engineering.