A four-rotor Osprey concept is described as theoretically possible but difficult to engineer. The comparison begins with the work needed to make the Chinook's paired rotor systems operate together. Tilting systems add another challenge, as the Osprey already demonstrates with two rotors. A four-rotor aircraft would have to coordinate all four systems reliably. Concept drawings do not resolve those integration problems.
Notable Point · 3:59:57-4:00:36
Why a four-rotor Osprey would be difficult to develop
An enlarged four-rotor tiltrotor would require more than multiplying the Osprey's existing machinery.