A movable carriage system for an aircraft element, such as an aeroplane engine, has a first movable module (10) and a second movable module (20). Each movable module has a frame (12, 22) equipped with at least three wheels, a lifting device adapted to be able to move said aircraft element at least in a vertical direction, and at least one link arm (16, 17) adapted to be able to secure together the frame of said first module and the frame of said second module and to allow data to be transferred between them. The movable modules are adapted to be able to be controlled in a mutually coordinated manner.

Seal member arrangements having at least one seal plate are disposed over stringer receiving recesses in ribs of an aircraft. A tool for locating a seal member arrangement over a stringer-receiving recess in a rib of an aircraft assembly. The tool system has a holder configured to hold the seal member arrangement over the recess. A biasing arrangement is configured to act on the holder to bias the seal member arrangement into an aligned position with a stringer received in the recess. A fixing arrangement is configured to act on the seal member arrangement to fix the seal member arrangement in the aligned position. A sealing kit, an aircraft assembly, a method of fixing a seal member arrangement over a stringer-receiving recess in a rib of an aircraft are also disclosed.

Seal member arrangements having at least one seal plate are disposed over stringer receiving recesses in ribs of an aircraft. A tool for locating a seal member arrangement over a stringer-receiving recess in a rib of an aircraft assembly. The tool system has a holder configured to hold the seal member arrangement over the recess. A biasing arrangement is configured to act on the holder to bias the seal member arrangement into an aligned position with a stringer received in the recess. A fixing arrangement is configured to act on the seal member arrangement to fix the seal member arrangement in the aligned position. A sealing kit, an aircraft assembly, a method of fixing a seal member arrangement over a stringer-receiving recess in a rib of an aircraft are also disclosed.

A gas turbine engine maintenance stand for a gas turbine engine that comprises modules including an engine core module that houses a high pressure compressor and a turbine module that houses a low pressure turbine. The gas turbine engine maintenance stand has a pair of base beams, each base beam having a first end, a midsection and a second end. The stand has an engine core module support that straddles the pair of base beams at their midsection, the engine core module support having engine core module support arms that are configured to engage opposing sides of the engine core module of the gas turbine engine. The stand also has a turbine module support that straddles the pair of beams adjacent their second ends, the turbine module support having turbine module support arms that are configured to engage opposing sides of the turbine module of the gas turbine engine. The gas turbine engine maintenance stand is useful for disassembling and reassembling modules of a gas turbine engine in order to maintain the gas turbine engine for safety and performance purposes.

A gas turbine engine maintenance stand for a gas turbine engine that comprises modules including an engine core module that houses a high pressure compressor and a turbine module that houses a low pressure turbine. The gas turbine engine maintenance stand has a pair of base beams, each base beam having a first end, a midsection and a second end. The stand has an engine core module support that straddles the pair of base beams at their midsection, the engine core module support having engine core module support arms that are configured to engage opposing sides of the engine core module of the gas turbine engine. The stand also has a turbine module support that straddles the pair of beams adjacent their second ends, the turbine module support having turbine module support arms that are configured to engage opposing sides of the turbine module of the gas turbine engine. The gas turbine engine maintenance stand is useful for disassembling and reassembling modules of a gas turbine engine in order to maintain the gas turbine engine for safety and performance purposes.

An installation system for a cabin of a vehicle includes at least one built-in component for installation in the cabin, multiple base elements for arrangement on a structurally fixed component of the vehicle and multiple holding devices that can be connected to the at least one built-in component. The holding devices each include a clamping unit with receiving space defined by at least two clamping members, wherein the receiving space can be moved between an open and a closed state through movement of at least one of the clamping members in the direction of the other clamping member in each case and wherein the clamping unit is configured to move the at least one clamping member by pressing the clamping unit onto a base element when the receiving space is in the open state and thereby closing the receiving space including the base element.

An installation system for a cabin of a vehicle includes at least one built-in component for installation in the cabin, multiple base elements for arrangement on a structurally fixed component of the vehicle and multiple holding devices that can be connected to the at least one built-in component. The holding devices each include a clamping unit with receiving space defined by at least two clamping members, wherein the receiving space can be moved between an open and a closed state through movement of at least one of the clamping members in the direction of the other clamping member in each case and wherein the clamping unit is configured to move the at least one clamping member by pressing the clamping unit onto a base element when the receiving space is in the open state and thereby closing the receiving space including the base element.

A tolerance compensation subassembly in the form of a tolerance compensation element or a tolerance compensation region to improve the production, maintenance and repair of aircraft. The tolerance compensation subassembly contains an actuator which is formed from an electro-active polymer so that the tolerance compensation subassembly is electrically switchable between a fixed state and a non-fixed state. As a result, automation of the assembly of aircraft components on each other can be enabled or facilitated.

A tolerance compensation subassembly in the form of a tolerance compensation element or a tolerance compensation region to improve the production, maintenance and repair of aircraft. The tolerance compensation subassembly contains an actuator which is formed from an electro-active polymer so that the tolerance compensation subassembly is electrically switchable between a fixed state and a non-fixed state. As a result, automation of the assembly of aircraft components on each other can be enabled or facilitated.

A determination device includes a computer. The computer is configured to compare an image of a component that is captured and a correct image that is associated with an operation procedure manual and in which the component is captured. The computer is configured to determine whether a component shape in the image of the component and a component shape in the correct image agree. If the two component shapes do not agree, the computer is configured to determine that the component and the operation procedure manual do not match.