Abstract: A cable cutter (10) for an aircraft (27) comprises an electrically-conducting body (12) configured to be mounted on an aircraft (27) and to cut a cable and an electrically-conducting auxiliary member (38) attached to, and electrically isolated from, the body (12). The body (12) and auxiliary member (38) are configured to together form an antenna. A method of manufacturing an antenna for an aircraft comprises the steps of providing a cable cutter (10) for an aircraft, the cable cutter comprising an electrically-conducting body (12) configured to be mounted on an aircraft (27) and to cut a cable; providing an electrically conducting auxiliary member (38) and attaching it to the body (12) so as to be electrically isolated from the body (12); and providing an antenna connector (42) and connecting the terminals thereof to the body (12) and auxiliary member (38) respectively.

Abstract: A shelter for individuals or groups of people caught in the open in inclement weather especially when there is a danger of lightning. The shelter includes an elongate electrically-conductive member for supporting a canopy, the elongate electrically-conductive member being configured as a lightning conductor; an electrically-conducting floor; and a coupling member for electrically connecting the elongate electrically-conductive member to the electrically-conducting floor. The coupling member includes a flange extending laterally away from the elongate electrically-conducting member, over the electrically-conductive flooring, to provide an enlarged footprint of engagement with the electrically-conducting floor.

Abstract: A shelter for individuals or groups of people caught in the open in inclement weather especially when there is a danger of lightning. The shelter comprises an elongate electrically-conductive member for supporting a canopy, the elongate electrically-conductive member being configured as a lightning conductor; an electrically-conducting floor; and a coupling member for electrically connecting the elongate electrically-conductive member to the electrically-conducting floor. The coupling member includes a flange extending laterally away from the elongate electrically-conducting member, over the electrically-conductive flooring, to provide an enlarged footprint of engagement with the electrically-conducting floor.

Abstract: Aromatic polymer materials, such as polyethersulphone, polysulphone or polycarbonates in granular or porous forms with a solvent such as acetone or butanone. The resultant mixture is thereafter compressed and compounded to significantly increase its density producing a pre-form substantially free of large irregular voids. The preform is then capable of being formed in a foamed structure under heat.