The book "The theory of direct air-jet engines" by the authors Govorov A. N. , Guseva V. A. and Orlova P. In. is a unique and in-depth study in the field of aerodynamics and jet propulsion, which will become an indispensable resource for both students and professionals in the field of aviation and astronautics. This publication not only highlights the theoretical aspects of the operation of rectilinear motors, but also offers practical solutions that make it relevant to a wide range of readers. The book discusses in detail the basics of the operation of direct-flow air-jet engines, their design and principles of functioning. The authors share their knowledge of how these engines convert the energy derived from the combustion of fuel into mechanical work, ensuring the movement of aircraft. The reader will be able to learn about key components such as compressors, combustion chambers and turbines, as well as how their interaction affects engine efficiency and power. Who can like this book? First of all, it will be of interest to students and graduate students of technical universities specializing in aviation, mechanical engineering and aerodynamics . It will also be a useful tool for engineers and designers working in the development and operation of jet engines. Even aviation enthusiasts seeking to deepen their knowledge of the principles of modern aircraft, will find in this book a lot of useful information. The topics raised in the book cover a wide range of topics related to aerodynamics, thermodynamics, and mechanics. The authors emphasize the importance of research and development in the field of jet propulsion, emphasizing that it was thanks to them that they managed to achieve significant success in creating high-performance engines. The book also touches on issues of ecology and sustainable development, discussing how new technologies can help reduce the negative impact of aviation on the environment. The style of the authors is distinguished by clarity and accessibility of the presentation, which allows even complex technical concepts to be presented in an understandable and logical form. Speakers A. N. , Gusev B. A. and Orlov P. In. experienced specialists, each of whom has made a significant contribution to the development of aviation science. Their previous work has also earned recognition in academia, and this book is no exception. It is a continuation of their research and a synthesis of many years of experience, which makes it especially valuable for readers. If you are looking for literature that combines deep theoretical knowledge and practical aspects, then the “Theory of rectilinear air-jet engines” will be a real find for you. This book will not only expand your horizons in aviation, but also inspire further research and discovery. Do not miss the opportunity to get acquainted with the work of authors who share their knowledge and experience with love and dedication . Immerse yourself in the world of jet technology and discover new horizons with this fascinating and informative book!