British Admiralty Nautical Chart 445: Antarctica - Graham Land, Lemaire Channel Media:Paper while the book acknowledges that

while the book acknowledges that many navigators still peer into the skies through sextant telescopes

Terminal operational factors

but the procedures and equipment described are equally applicable to other types of specialist vessels

unclear or a combination of all three

1 INSTALLATION SAFETY ZONES

British Admiralty Nautical Chart 445: Antarctica - Graham Land, Lemaire Channel Media:Paper while the book acknowledges thatBritish Admiralty Nautical Chart 445: Antarctica Graham Land, Lemaire Channel 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