Abstract: An aircraft landing gear assembly comprising an impact protection boot mounted to a landing gear component, the impact protection boot comprising: a resilient inner impact energy absorption layer which engages the component; and an outer protective layer which substantially covers the impact energy absorption layer, wherein the inner layer is more compressible than the outer layer. The boot has first and second ends which are tied to each other by a connector which exerts oppositely directed forces on the first and second ends respectively, the forces being directed around the circumference of the boot so as to tighten the boot against the landing gear component.

Abstract: A sealing material comprises a partially or fully cured polysulphide sealant and a reinforcing element, especially glass fibre. The sealing material is a flexible solid and is preferably in sheet form. The sealing material is cut to shape like a gasket and is assembled between components to be fastened, for example, in airframe manufacture.