US Patent 9187175 Flying-wing and VTOL flying-wing aircraft

This invention presents a VTOL aircraft with two or more Flying-Wings (FWs), where each FW is equipped with multiple Transverse-Radial propellers capable of producing lift force and thrust force on the stationary or non-stationary aircraft. The aircraft is capable of exchanging payloads horizontally as well as vertically with a stationary or a moving object. In particular, this invention illustrates how this aircraft can “walk” on the building wall to adjust and anchor its position in order to rescue people from a high-rise-building window horizontally.