Abstract: An aircraft structure including a heat shield. A heat shield including an interior; a skin enclosing the interior; a plurality of barriers attached in the interior to the skin, each of the barriers spaced to separate a plurality of thermal insulation layers disposed in the interior; and wherein the barriers suppress heat flow between the thermal insulation layers.

Abstract: An aircraft structure, comprising a heat shield including. The heat shield includes an interior; a skin enclosing the interior; a plurality of barriers attached in the interior to the skin, each of the barriers spaced to separate a plurality of thermal insulation layers disposed in the interior; and wherein the barriers suppress heat flow between the thermal insulation layers.

Abstract: A method and apparatus for manufacturing an arched metallic profile, in a continuous in-line process. The method comprises forming the metallic profile; and arching the formed metallic profile in a continuous in-line process. The apparatus includes a roll forming station configured to receive flat metallic composition and output a given profile. An arching device is configured to receive the metallic profile and bend the metallic profile having a desired radius of curvature wherein a portion of the arching device is displaced with respect to said roll forming station vertically and/or horizontally.

Abstract: Background areas (A) are etched in opaque substrates (B) having smooth surfaces forming products carrying characters (C) of enhanced visibility by directing a laser beam (D) against opaque substrates while maintaining smooth surface areas free of the effects of the laser beam.