A new utility helicopter was needed to replace the "Huey" who served admirably during the Vietnam Conflict. However, it lacked engine power, was vulnerable to small-arms fire, and was limited in lifting/transporting heavy external payloads. Hence the birth of the UH-60 Black Hawk. The book is filled with lots of technical explanations and pictures concerning the aircraft.
Book pages: 80 Readling Level: 7th grade+