V-22A Osprey

The innovative Bell Boeing V-22 Osprey project was initiated during the 1980s, but only emerged into production and was deployed to various arms of the US armed forces, after enduring a long and complex developmental process which lasted for over twenty years. The Osprey is a tilt rotor, equipped with two tilting engines which have large three-blade propellers attached that make it able to land and take-off vertically like a helicopter, and also possessing flight and transfer performance similar to that of a conventional propeller plane