Mechanical Engineering Volume IV-21 Book 2: Design, Construction, and Systems of Aircraft and Helicopters, edited by K. In. Frolova is an outstanding work that immerses the reader in the fascinating and complex world of aviation technology. This work is part of an extensive series dedicated to mechanical engineering, and represents an important resource for both professionals and students interested in the design and construction of aircraft. In this book, the authors consider in detail the key aspects of the design of aircraft and helicopters, ranging from the basic principles of aerodynamics to modern control systems. The reader will be able to learn about various design solutions used in aviation, as well as about the latest technologies that change the face of the aviation industry. The book includes many illustrations, diagrams and tables, which makes the material more accessible and illustrative. Who can like this publication? First of all, it will be interesting for students and postgraduates of technical universities studying in specialties related to aviation and mechanical engineering . Engineers and designers working in the field of aircraft design will also find in the book many useful recommendations and up-to-date information. In addition, this edition will be useful to all those who are interested in the history and development of aviation equipment, as well as those who want to better understand the principles of modern aircraft and helicopters. The topics raised in the book cover a wide range of issues, ranging from basic design to safety and reliability analysis. Special attention is paid to innovative technologies, such as composite materials, which are increasingly used in the aviation industry. The book also addresses issues of ecology and sustainable development, which makes it relevant in light of the current challenges facing humanity. Style K. In. Frolov, as editor, is distinguished by the clarity and accessibility of the presentation . It skillfully combines theoretical aspects with practical examples, which allows the reader not only to assimilate the material, but also to apply it in practice. Frolov is the author and editor of many works in the field of mechanical engineering, and his experience in this field allows him to create high-quality and informative publications. If you are looking for books on aircraft design, pay attention to such works as "Aerodynamics of aircraft" or "Basics of helicopter design" These books can be a great addition to your topic study. Also, if you are interested in aviation-related search queries, you can use phrases such as "aircraft design", "helicopter design", "aviation systems" and "aviation innovation". In conclusion, “Engineering Volume IV-21 Book 2: Design, Construction and Systems of Aircraft and Helicopters” is not just a training manual, but a real encyclopedia of knowledge for anyone who wants to deepen their knowledge in the field of aviation. This book will be an indispensable assistant for those who strive for professional growth and want to be aware of the latest achievements in the world of aviation technology. Do not miss the opportunity to discover the fascinating world of aircraft design along with this wonderful book!