Aircraft fuselages or wings are formed of sections produced by moulding sheets formed of glass-wool, glass-silk or other form of glass fibre lightly sprayed with a binding agent such as gelatine, glue, sodium silicate or cellulose acetate, the sheets being then immersed in or sprayed with a further quantity of the binding agent, either before or after the application of the sheets to the mould or former, and the sections produced being subsequently dried so as to become hardened. A hardening agent, e.g. formaldehyde or chrome alum, may be added to the binding agent or may be applied to the sections before they become dry. The sections may be coloured by painting or spraying, or colouring agents, e.g. metallic powder or filings or a metallic oxide, may be incorporated in the binding solution. Any desired reinforcement, e.g. struts, metal gauze or wire, or ferromagnetic and/or electrically conducting material, may be incorporated in the sections.
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