Mil Mi-24 Hind attack helicopter - Yefim Gordon, Dmitriy Komissarov - Google Books

https://books.google.de/books?id=NH8gAQAAIAAJ&pg=PA56#v=onepage

The Russian-built Mil Mi-24 is one of the best known and most prolific combat helicopter in the world. This volume includes an introductory explanation of the concept and a detailed development history of the helicopter. Descriptions of existing versions…