FLUGZEUG MIT SCHWENKDUESENTRIEBWERK

摘要

An aircraft has two vectorable front nozzles 36 each mounted in a bearing (49) Fig.4 located within the fuselage 12 near an adjacent wing 14. Each nozzle 36 is rotatable from a first position 36a in which exhaust air is directed downwards to a second position 36b in which the exhaust air is directed rearwards. In the first position the nozzle resides within a cavity 40 formed in the wing root to reduce nozzle drag when the aircraft is propelled by its rear nozzle only. The front nozzles rotate out of their respective cavities to the second position when they are used for forward thrust. Additionally, the cavity is extended to form a passage through which secondary air entrained by exhaust from the front nozzle operating in the first position adds to the vertical thrust and reduces suck down effects. <IMAGE>