The invention relates to an assembly of two brazing sheets the first one of which consists of a 3xxx alloy clad on one surface with a 1xxx alloy, the second one of which consists of an AA3xxx alloy clad on both surfaces thereof with a 4xxx alloy, which are assembled together by brazing so as to form a disrupted channel for the flow of exhaust gases, in particular for an engine vehicle. By selectively causing a red LED 51 and a green LED 52 that function as a light source of a backlight to emit a light, red, green and orange lighting colors of the backlight are obtained. The distal member is configured to hold or grasp the tissue to be invaginated. The plate antenna covers the surface of the host when the plate and the host are closed. Once the fuselage coupler is securely mounted, the radome assembly can be removably attached to the fuselage coupler, allowing the radome assembly to be quickly and easily removed and reattached to the aircraft, as needed.