The Bell Boeing V-22 Osprey is the most successful VTOL aircraft ever designed. After a controversy-plagued developmental period, when the Osprey finally became operational, it proved its critics woefully wrong. The V-22 has a recorded an outstanding safety record, serving both the Marines and the Air Force. It has become the safest vertical takeoff aircraft in history and its success has spawned plans for follow-on aircraft to replace many of the helicopters in service today. This book is a developmental history of the V-22, illustrated with 100 pages of colour photos and detail drawings.