British Admiralty Nautical Chart 3863: Approaches to Oulu Explorer Chartbooks Constructed with a nitrogen-filled and

Constructed with a nitrogen-filled and O-ring sealed body

6 Permit to Work (PTW) System

a key element of the Global Maritime Distress and Safety System (GMDSS)

5 inches (165mm) diameter

which touches the yellow half

British Admiralty Nautical Chart 3863: Approaches to Oulu Explorer Chartbooks Constructed with a nitrogen-filled andBritish Admiralty Nautical Chart 3863: Approaches to Oulu is a standard nautical chart. This nautical chart complies with Safety of Life at Sea (SOLAS) regulations and is ideal for professional, commercial and recreational use. Charts within the series consist of a range of scales, useful for passage planning, ocean crossings, coastal navigation and entering port. Mariners should always use the largest scale nautical chart appropriate to their needs.