Abstract: A fastener for securing together two sheet like members where a blind fixing is required, and yet possessing high positional accuracy. The fastener comprises a shank with a transverse foot the end of which carries a locating pin adapted to be received into locating holes in the members to be joined. The fastener is assembled by passing the foot through an opening in one of the members positioned so that the locating pin may be inserted into the locating holes. The fastener is secured by tightening a retaining nut and washer on a threaded portion of the shank of the fastener.

Abstract: A vane fixing apparatus for removably fixing a vane plate (14) to a web (12) is described. The vane fixing apparatus comprises a mounting bracket (16) attached to the vane plate (14), and a mounting block (20,30) held on the web (12) by at least one fastener (18), wherein the mounting block (20,30) is moveable between a first configuration in which the mounting bracket (16) may engage and disengage the mounting block (20,30) and a second configuration in which the mounting block (20,30) securely retains the mounting bracket (16) relative to the web (12), and wherein the mounting block (20,30) is moveable between the first and second configurations by operation of the fastener (18).

Abstract: A gas turbine engine transition duct 34 is used to convey exhaust gas and bypass air away from the engine, towards an exhaust nozzle (not shown). The duct 34 defines the outer extremity of the path for gas and/or air through the duct. The duct comprises a plurality of flat panel members 36 which together define the outer extremity of the path.

Abstract: A vane for a duct, such as an exit guide vane for an exhaust duct of a gas turbine engine, includes a vane plate, an interior strut and an internal wall disposed between the vane plate and the strut. The vane further includes a fluid inlet in the form of a scoop arranged to direct bypass fluid from outside the duct into a gap between the vane plate and the internal wall.

Abstract: A fastener (2) comprising an elongate core (4) and made of titanium or titanium alloy, and a sleeve (6) made of a different material and having an external thread (26), the core (4) being disposed within the sleeve (6) and fixed with respect to the sleeve (6).

Abstract: A fastener for securing together two sheet like members where a blind fixing is required, and yet possessing high positional accuracy. The fastener comprises a shank with a transverse foot the end of which carries a locating pin adapted to be received into locating holes in the members to be joined. The fastener is assembled by passing the foot through an opening in one of the members positioned so that the locating pin may be inserted into the locating holes. The fastener is secured by tightening a retaining nut and washer on a threaded portion of the shank of the fastener.

Abstract: A vane for a duct, such as an exit guide vane for an exhaust duct of a gas turbine engine, comprises a vane plate, an interior strut and an internal wall disposed between the vane plate and the strut. The vane further comprises a fluid inlet in the form of a scoop arranged to direct bypass fluid from outside the duct into a gap between the vane plate and the internal wall.

Abstract: A vane fixing apparatus for removably fixing a vane plate (14) to a web (12) is described. The vane fixing apparatus comprises a mounting bracket (16) attached to the vane plate (14), and a mounting block (20,30) held on the web (12) by at least one fastener (18), wherein the mounting block (20,30) is moveable between a first configuration in which the mounting bracket (16) may engage and disengage the mounting block (20,30) and a second configuration in which the mounting block (20,30) securely retains the mounting bracket (16) relative to the web (12), and wherein the mounting block (20,30) is moveable between the first and second configurations by operation of the fastener (18).

Abstract: A vane for use in a duct, such as an exhaust duct in a gas turbine engine, comprises a shear web arranged to extend substantially across the duct and to be fixedly attached to at least one wall thereof, and one or more vane plates removably mountable on the web. On each side of the web three retaining plates are secured to the web by bolts 18. A plurality of mounting brackets, are permanently fixed to the vane plates by riveting with countersunk-head rivets. Mounting brackets have tangs which are arranged for slidable engagement with the retaining plates in a direction opposite to arrow A. Thus, the vane plates may be slid along the web from a trailing edge of the vane to a leading edge, and back. Once the vane plates are in the required position on the web they may be secured against further sliding movement by a pair of limiting brackets, one on each side of the web.