The document describes a new vertical take-off and landing (VTOL) unmanned aerial vehicle (UAV) architecture being developed by VTOL Technologies that is well-suited for urban, mountainous, and maritime environments. The flying wing design with four thrust-vectoring propulsion units offers high payload capacity, endurance, and safety advantages over fixed-wing and rotorcraft UAVs. It can operate in tight spaces and recover from ships, withstanding gusts better than other designs. The unique VTOL system could enable applications like security for the 2012 London Olympics.