Abstract: The present invention relates to a latch for securing together a panel to a keeper thus permitting opening and closing of a portion of the panel while allowing the remaining portion of the panel to remain closed. When the latch is unlatched from a keeper, a user can refasten the panel by lowering the panel until the main pawl and the keeper are fastened together by the action of the keeper on the pawl of the latch. The latch also provides for the opening and closing of a portion of one of the panels while allowing the remaining portion of that panel to remain closed.

Abstract: A gas turbine powerplant includes an attitude control nozzle comprising an aperture in a duct wall of the powerplant for discharging a propulsive stream from the powerplant. One or more flaps are each pivoted to the side edges of the aperture and pivotally movable into different positions relative to the duct. In one position the flaps co-operate to close the aperture and in further positions the free ends of the flap or flaps co-operate to define variously directed discharge orifices of variable area.

Abstract: A by-pass gas turbine engine capable of producing an unmixed exhaust stream which comprises a core of hot turbine exhaust gases surrounded by an annular layer of by-pass air, is combined with a target thrust reverser. The ratio of the total pressure of the by-pass air to the total pressure of the turbine exhaust gases is arranged to be greater than unity to a significant extent, and the buckets are made from lightweight materials such as titanium, light alloys or even fiber re-inforced composite materials.

Abstract: The pad assembly is made up of three pads of resilient foam material assembled one on top of the other, the center pad having a greater density than the outer pads. The center pad has three cut-out openings at locations corresponding to the maximum pressure points exerted by a person sitting on the pads, these openings including a filler foam of density less than that of the outer pads, the overall assembly distributing pressure against a person seated thereon.