Abstract: The present invention discloses a sector light, said sector light having at least one tier including a light source assembly comprising opaque dividing elements, two or more light sources, and two or more optical lenses; wherein the light source assembly is divided into circumferential sections, each circumferential section being separated by the opaque dividing elements, and each circumferential section containing a light source and an optical lens arranged such that the optical lens collects and outwardly projects the light emitted by the light source.

Abstract: The invention relates to a buoy comprising a buoyant, plastic core component, and a plurality of detachable flotation components that support and surround the core component. The buoy is preferably more than 2.5 metres diameter, but the diameter of the core component is preferably less than or equal to 2.35 metres diameter. This facilitates transport in a single shipping container. A novel tie bar assembly and novel lifting/mooring mounts are also disclosed.

Abstract: The present invention provides computer-implemented methods and systems for managing aids to navigation (AtoNs). In one embodiment, the method comprises maintaining an AtoN database, recording, in the AtoN database, an identifier for each AtoN asset, and associating, with each identifier, lifecycle information relating to the corresponding AtoN asset. The method may be performed by a mobile device, and functions of the mobile device can be utilised to provide additional advantages at the time of deployment or servicing of an AtoN—in particular, to record the current location of an AtoN, its colour or flash rate, or the tilt of one or more parts of the AtoN.