| 摘要 |
1,075,128. VTOL aircraft. ROLLS-ROYCE Ltd. March 11, 1966, No. 10943/66. Heading B7G. [Also in Division F1] A vertical take-off and landing aircraft has direct lift gas turbine engines each arranged vertically in a duct 30, 31 and provided with a vaned rotor 32, through which the engine exhaust passes and is caused to swirl, thus increasing the flow of ambient secondary air through the duct. The engines are movable between an inoperative position in which they are stowed within the aircraft structure (as described, the fuselage), and in which the outer wall (22) of the duct (17) merges into the fuselage, and an operative position in which the engines and the outer walls are disposed outside the fuselage. As described there are eight engines mounted in four rectangular section ducts, each duct having an inner wall (20) formed by a recessed part of the fuselage, an outer wall, referred to above, and front and rear walls hinged to the inner and outer walls, and jointed in the middle so that they can fold (Fig. 4, not shown) to move the outer walls towards the fuselage. The engines are mounted on folding struts which fold parallel to the front or rear walls. The inner and outer walls may have inflatable portions to give the ducts a convergent-divergent section. |
