Abstract: A floor panel, in particular for covering floors of cargo holds of aircraft, is formed by a plurality of milled profiles, which are friction stir welded along their longitudinal edges, with preference continuously to form longitudinal (butt) seams. The milled profiles each form a beam “of equal stress”, with an upper flange and a lower flange spaced apart from one another along their extent. The milled profiles have a double-T-shaped cross-sectional profile, the upper flanges and the lower flanges being respectively connected by webs. With preference, the milled profiles are milled out in one piece from solid material of a sufficiently tough aluminum alloy. The joining together of the floor panel including a plurality of milled profiles that are arranged in parallel and friction stir welded allows a high mechanical load-bearing capacity of the floor panel in comparison with conventional sandwich floor panels along with a comparatively low weight.

Abstract: Disclosed is a fitting for introducing great loads into a fuselage cell of an aircraft, in particular those which emanate from undercarriage components or are introduced into them. The fitting has a shoulder plate for bearing against the inside of the skin of the fuselage cell for example over its full surface area. Arranged underneath the shoulder plate is a vertical lug shackle with a lug for introducing the loads, wherein the lug shackle is led to the outside through a clearance in the skin of the fuselage cell. At least one approximately upright fastening shackle is provided on the upper side of the shoulder plate for connecting the fitting to a frame web. According to the invention, the loads occurring are introduced into the frame, substantially “moment-free” in the region of a neutral fiber, so that the said frame is not exposed to any appreciable flexural stresses and can be of a more lightweight design.

Abstract: Disclosed is a crash paddle for reinforcing a primary fuselage structure of an aircraft. The crash paddle may be used for connecting the floor to the primary fuselage structure. The crash paddle includes a beam with in particular an H-shaped cross-sectional geometry, butt straps being arranged at both ends of the beam for connecting the crash paddle. In the region of the ends of the beam, the beam respectively has a resting surface 13, 14, the geometrical shape of which substantially corresponds to a hollow cylinder halved in the longitudinal direction. Placed around both resting surfaces and the longitudinal sides of the beam, in a peripheral groove is at least one endless loop. The endless loops respectively comprise an arrangement of reinforcing fibers, which is formed by a plurality of reinforcing fibers, such as for example carbon fibers, running substantially parallel to the longitudinal axis of the beam.

Abstract: Disclosed is a lining framework for fastening seats in an aircraft. The lining framework preferably comprises three seat rails, which are arranged in a spaced apart manner parallel to each other along both side walls of the fuselage cell. Sitting surfaces of a plurality of seats are suspended on the seat rails by textile straps consisting of high-strength, woven plastic material. At least two straps are arranged between the upper seat rail and two frames of the fuselage cell of the aircraft. In this case, a strap length is measured so that forces from the fuselage cell cannot be transmitted into the lining framework. By the same token, however, forces from the lining framework can be introduced into the fuselage cell by means of the straps so that the lining framework can be designed statically lighter. This leads to a weight reduction of the lining framework.

Abstract: Disclosed is a fastening arrangement for lashing brackets in the floor of a cargo hold of an aircraft. In this case, a plurality of channels that extend in the longitudinal direction of the aircraft, together with transverse profiles or frames lying under them, form a grid-like floor framework. The frames and the channels extend in each case preferably such that they are uniformly spaced apart and parallel to one another. A lashing bracket is pivotably accommodated in the at least one channel. The connection between the lashing bracket, the channel and the frame can be performed with two half-barrel nuts, which are arranged in the region of a thickening of the web of the frame and into which two screw bolts are screwed.

Abstract: Disclosed is a fitting for introducing great loads into a fuselage cell of an aircraft, in particular those which emanate from undercarriage components or are introduced into them. The fitting has a shoulder plate for bearing against the inside of the skin of the fuselage cell for example over its full surface area. Arranged underneath the shoulder plate is a vertical lug shackle with a lug for introducing the loads, wherein the lug shackle is led to the outside through a clearance in the skin of the fuselage cell. At least one approximately upright fastening shackle is provided on the upper side of the shoulder plate for connecting the fitting to a frame web. According to the invention, the loads occurring are introduced into the frame, substantially “moment-free” in the region of a neutral fiber, so that the said frame is not exposed to any appreciable flexural stresses and can be of a more lightweight design.

Abstract: Disclosed is a floor panel, in particular for covering floors of cargo holds of aircraft. The floor panel is formed by a plurality of milled profiles, which are friction stir welded in each case along their longitudinal edges, with preference continuously to form longitudinal (butt) seams. The milled profiles each form a beam “of equal stress”, with an upper flange and a lower flange which are spaced apart from one another along their extent. The milled profiles have in each case a double-T-shaped cross-sectional profile, the upper flanges and the lower flanges being respectively connected by webs. With preference, the milled profiles are milled out in one piece from solid material of a sufficiently tough aluminium alloy.

Abstract: Disclosed is a crash paddle for reinforcing a primary fuselage structure of an aircraft. The crash paddle may be used for connecting the floor to the primary fuselage structure. The crash paddle includes a beam with in particular an H-shaped cross-sectional geometry, butt straps being arranged at both ends of the beam for connecting the crash paddle. In the region of the ends of the beam, the beam respectively has a resting surface 13, 14, the geometrical shape of which substantially corresponds to a hollow cylinder halved in the longitudinal direction. Placed around both resting surfaces and the longitudinal sides of the beam, in a peripheral groove is at least one endless loop. The endless loops respectively comprise an arrangement of reinforcing fibers, which is formed by a plurality of reinforcing fibers, such as for example carbon fibers, running substantially parallel to the longitudinal axis of the beam.

Abstract: Disclosed is a fastening arrangement for lashing brackets in the floor of a cargo hold of an aircraft. In this case, a plurality of channels that extend in the longitudinal direction of the aircraft, together with transverse profiles or frames lying under them, form a grid-like floor framework. The frames and the channels extend in each case preferably such that they are uniformly spaced apart and parallel to one another. A lashing bracket is pivotably accommodated in the at least one channel. The connection between the lashing bracket, the channel and the frame can be performed with two half-barrel nuts, which are arranged in the region of a thickening of the web of the frame and into which two screw bolts are screwed.

Abstract: Disclosed is a lining framework for fastening seats in an aircraft. The lining framework preferably comprises three seat rails, which are arranged in a spaced apart manner parallel to each other along both side walls of the fuselage cell. Sitting surfaces of a plurality of seats are suspended on the seat rails by textile straps consisting of high-strength, woven plastic material. At least two straps are arranged between the upper seat rail and two frames of the fuselage cell of the aircraft. In this case, a strap length is measured so that forces from the fuselage cell cannot be transmitted into the lining framework. By the same token, however, forces from the lining framework can be introduced into the fuselage cell by means of the straps so that the lining framework can be designed statically lighter. This leads to a weight reduction of the lining framework.