Home | Marine Aids to Navigation | Lighthouses ALT 12 Onshore Beacons GRP Modular Construction 16 m Max. Height 1,6 m Nominal Width The ALT 12 onshore beacons are characterised by being manufactured from reinforced resin laminate and because they are modular using composite panels they facilitate transport and installation using limited means. They are mainly used for coastal marking and areas with difficult access. They can be manufactured with heights up to 16 meters. Request moreinformation about ALT 12 Onshore Beacons