30results about How to "Significant weight" patented technology

An electric power generation and distribution system includes a primary distribution panel, which preferably operates at 230 VAC, and a High Voltage Direct Current (HVDC) panel in direct electrical communication therewith. The HVDC panels power motor controllers which drive electric motors residing in the center or aft sections of the aircraft. As many of the large electrical loads are located in the aft section of the aircraft, an aft electronics bay is located adjacent the aircraft wing roots to house the primary distribution panels and the HVDC panels.

A fan case for a gas turbine engine is provided to prevent water from pooling and freezing inside the fan case when the gas turbine is not in operation, and potentially prevent the engine from starting and / or cause engine damage. The fan case is therefore adapted to provide a drainage system allowing water to freely escape the fan case without compromising the structural integrity of the fan case. The fan case comprises: a hollow body; an abradable liner disposed inside the hollow body; a flange on the hollow body defining a surface for mating to a forward part of the engine; and, a first radial slot extending across the mating surface of the hollow body. The abradable liner has an inside surface for circumscribing the fan blades wherein the first radial slot is in a free-draining relation with the inside surface of the abradable liner.

What is disclosed is a water-based adhesive composition that is an aqueous dispersion or emulsion of a polymer component having functional groups that are inactive in a reversible manner in the adhesive composition as prepared; and a water-soluble, or water emulsion, or dispersion of a cross linker component having functional groups wherein the functional groups are inactive in a reversible manner in the adhesive composition as prepared. Preferably the adhesive composition has a pH of from 7 to 11 and a volatile stabilizing base component is used to inactivate the functional groups and to provide the pH. The functional groups in the polymer component and the cross linker component are activated when the volatile base is removed during lamination heat treatment. The adhesive composition can be used to adhere a variety of plastic films to metal substrates without reliance on non-water-based adhesives.

A mounting bracket and structural bridging fastener comprises an angle mounting bracket attached to a stable base, the bracket comprising a substantially planar main body and a mounting plate oriented perpendicular to the main body, the mounting plate and main body being connected through a complex formation in the angle mounting bracket, a loaded subcomponent configured to be attached to the mounting bracket so that the attachment point of the loaded subcomponent is aligned directly with the main body, a fastener comprising a structural portion adapted to lie between and be rigidly fastened to the mounting plate and to the main body adjacent the complex formation, with the fastener further comprising a threaded portion adapted to connect the loaded subcomponent to the mounting plate. The threaded portion may be an extension of the structural portion adapted to receive a nut, or the threaded portion may be internal to the structural portion and adapted to receive a bolt. The mounting bracket and structural bridging fastener is particularly adapted to secure a vehicular steering column assembly to a vehicular cross-car instrument panel structure.

An octogrid structure and method of forming the same for a composite laminate structure is provided. The octogrid sub-structure comprises: a first ply layer comprising a plurality of first elongate tapes oriented in a first direction and a plurality of second elongate tapes oriented in a second direction; and a second ply layer comprising a plurality of third elongate tapes oriented in the first direction and a plurality of fourth elongate tapes oriented in the second direction, the second ply layer being overlaid atop the first ply layer. A first end of each of the elongate tapes is positioned approximately adjacent a midpoint of an adjacently positioned one of the elongate tapes; and a second and opposing end of each of elongate tapes extends freely beyond a central grid portion defined by a length of a portion between the first end and the midpoint of the elongate tapes.

An aircraft (1) including a fixed wing (7) and a wing tip device (9) moveably mounted thereon. The wing tip device (9) is movable from a load-alleviating configuration to a flight configuration. The wing tip device includes an airflow channel (88) extending between respective apertures (83, 84) on the upper surface and lower surface of the wing tip device. The channel (88) is configurable between an open state in which air can flow through the channel and a closed state in which the airflow through the channel (88), via the apertures (83, 84), is blocked. The channel (88) is configured such that when the wing tip device (9) is in the load-alleviating configuration and the channel (88) is in the open state, the aerodynamic loading on the wing tip device in flight urges the wing tip device towards the flight configuration.