Helicopters: An Illustrated History of Their Impact (Weapons and Warfare)

First envisioned by Leonardo da Vinci and first deployed in World War II, the helicopter is now a universal icon of modern warfare, a key component of combat planning around the world, and one of the military's most versatile and effective tools.

• Approximately 70 photographs of helicopter models, including a number taken in combat situations

• Glossary of terms unique to rotorcraft, including autorotation, translating tendency, and dihedral roll