The book "Engineering studies of hydraulic drives of aircraft" by D. N. Popova is a unique and in-depth study in the field of aerospace engineering that will be of particular interest to both professionals and students seeking to understand the complex mechanisms underlying modern aircraft. This work opens the door to the world of hydraulic actuators, which play a key role in the management and operation of aviation equipment. In this book, the author carefully analyzes various aspects of the design, testing and operation of hydraulic actuators used in aircraft. Popov shares his knowledge about the principles of hydraulic systems, their advantages and disadvantages, as well as how they affect the overall performance and safety of aircraft. Readers will be able to learn about current trends in the development of hydraulic systems, as well as about the latest technologies that are being introduced into the aviation industry. The book will be of interest not only to engineers and designers working in the field of aviation, but also to students of technical universities studying aerodynamics and mechanical systems. It can also attract the attention of researchers and scientists engaged in the development of new technologies in the field of hydraulics and aerospace engineering. The age category of readers varies from senior students to experienced professionals, making the book a universal source of knowledge. The topics raised in the book cover a wide range of issues, including the design of hydraulic systems, their testing and implementation in modern aircraft. Popov emphasizes the importance of the reliability and safety of such systems, which is especially important in light of modern requirements for aviation equipment. The book also addresses environmental and sustainability issues, making it particularly relevant in the context of global changes and challenges facing the aviation industry. The author's style is clear and accessible, which allows readers to easily assimilate complex technical concepts. D. N. Popov is an experienced engineer and researcher who not only shares his knowledge, but also inspires readers to further research in this area. His previous work has also received recognition in scientific circles, which confirms his status as an expert in the field of hydraulics and aerospace engineering. The book “Engineering studies of hydraulic drives of aircraft” will be an indispensable tool for anyone interested in aviation and wants to deepen their knowledge of hydraulic systems. It will help readers not only to understand the theoretical foundations, but also to get acquainted with the practical aspects of the design and operation of hydraulic drives. If you are looking for literature that combines scientific approach and practical application, then this book will be an excellent choice. It will not only enrich your knowledge, but also inspire new ideas and projects. Do not miss the opportunity to immerse yourself in the world of engineering research, which opens up many new horizons for you!