Dream Machine: Untold History of The Notorious V-22 Osprey (2010) Hardcover Book

When the marines decided to buy a helicopter-airplane hybrid “tiltrotor” called the V-22 Osprey, they saw it as their dream machine. The tiltrotor was the aviation equivalent of finding the Northwest Passage: an aircraft able to take off, land, and hover with the agility of a helicopter yet fly as fast and as far as an airplane. Many predicted it would reshape civilian aviation. The Marines saw it as key to their very survival.