A mechanically attached thermal protection system (MATPS) includes an insulating tile having a top surface, a bottom surface, and a plurality of access holes that extend through the insulating tile from the top surface to the bottom surface. A plurality of brackets include a first end attached to the insulating tile and a second end including a mounting hole therethrough, the second end being positioned proximate the bottom surface of the insulating tile. A plurality of fasteners are positioned proximate the bottom surface of the insulating tile and at least partially positioned within one of the access holes so as to be accessible from the top surface of the insulating tile through one of the plurality of access holes. A MATPS including a plurality of air channels within the insulating tile and a method for sealing these air channels to those within an adjacent structure is also described herein.

Examples include an apparatus for providing a point of attachment to a structural component, the apparatus including: a first grommet comprising: a head; and a shaft that extends from a first side of the head, where the shaft comprises a first attachment component opposite the head; a gasket bonded to a second side of the head that is opposite the first side, where the gasket, the head, and the shaft are aligned and a hole is formed through the gasket, the head, and the shaft; and a second grommet comprising a second attachment component that is configured to engage the first attachment component of the first grommet.

A fastening system includes a first fastening element attachable to a structure and which has a base portion for plugging through a structural opening, a second fastening element, and a plastically deformable funnel element. The funnel element has a funnel-like basic shape with a funnel opening. The second fastening element can be introduced through the funnel opening into a receiving opening of the base portion and fastened therein and has a collar which faces away from the receiving opening and which is larger than the funnel opening. The funnel element is designed to be deformed from the funnel-like basic shape into a flat, disk-like final shape by the collar of the second fastening element during the fastening of the second fastening element.

A finished floor assembly covers a floor area of an aircraft and includes a subfloor, a padding assembly, and a finish flooring layer. Noise radiates from the subfloor due to vibrations transmitted by an aircraft structure. The padding assembly attenuates the noise and includes a first pad layer, a second pad layer, and a plurality of discontinuous couplings. The first pad layer abuts the subfloor. The second pad layer is adjacent to the first pad layer. The plurality of discontinuous couplings are laterally separated from each other along the floor area by void portions. The discontinuous couplings secure the first pad layer to the second pad layer and the first pad layer and the second pad layer are in contact at the void portions. The finish flooring layer disposed overtop the padding assembly.

A clip system is configured to secure an insulation blanket to a frame. The clip system includes a first clamp member including an adjustment arm and a first engagement arm, and a second clamp member including a sleeve and a second engagement arm. The sleeve is configured to adjustably retain the adjustment arm to allow the first clamp member and the second clamp member to be moveably adjusted. The first engagement arm and the second engagement arm are configured to securely clamp portions of the insulation blanket and the frame therebetween.

An insulation attachment system for an aircraft includes a first insulation blanket including a first tab at an aft end of the first insulation blanket and a second insulation blanket including a second tab at an aft end of the second insulation blanket. The system also includes a third insulation blanket and a first attachment component disposed on an outboard forward portion of the second insulation blanket and clasping a first frame member of the aircraft such that the first tab and the second insulation blanket are attached to the first frame member. The system also includes a second attachment component disposed on an outboard forward portion of the third insulation blanket and clasping a second frame member of the aircraft that is aft of the first frame member such that the second tab and the third insulation blanket are attached to the second frame member.

A blanket (110) for insulating an aircraft structure (190) comprises an insulating portion (112), comprising a first edge (111) and a second edge (113), perpendicular to the first edge (111). The blanket (110) also comprises a tab portion (114), extending from the insulating portion (112), and a formable coupler (116), attached to the insulating portion (112). The tab portion (114) is thinner than the insulating portion (112). The insulating portion (112) fully overlaps the formable coupler (116). The formable coupler (116) is parallel to the second edge (113) of the insulating portion (112) and is perpendicular to the first edge (111) of the insulating portion (112).

A grommet (200, 300, 400), a stud (102), an assembly of a grommet and a stud forming a fastener (100), and a method of assembling a grommet and a stud to form a fastener has the grommet with an interengaging element (250) in a channel wall of the grommet for engaging a cooperating, compatible or complementary interengaging element in a wall of the stud. The grommet and the stud can be assembled by moving the grommet and the stud relative to each other until the interengaging element in the grommet engages the complementary interengaging element in the stud. A family of grommets is described.

An insulation insert comprises a hollow cylinder formed of a closed cell foam, a first adhesive layer on a first face of the hollow cylinder, a flange of the closed cell foam extending from the hollow cylinder, and a second adhesive layer on a second face of the flange.

A wall structure is provided for an aircraft. This wall structure includes a first wall section, a second wall section and a fastener system fastening the second wall section to the first wall section. The second wall section includes an aperture extending axially along an axis through the second wall section. The second wall section is axially spaced from the first wall section. The fastener system includes a mount and a retainer. The mount is connected to the first wall section. The mount includes a post that projects axially into the aperture. The retainer includes a head and a spring clip connected to the head. The head axially engages the second wall section. The spring clip is disposed in the aperture and is mated with the post.