Description
7 The R-Numbering System
Great Ormes Head to Liverpool is a standard nautical chart
British Admiralty Nautical Chart 4637: Vanuatu to Norfolk Island is a standard nautical chart
British Admiralty Nautical Chart 903: Entrance to the Baltic
British Admiralty Nautical Chart 3659: Cap Frehel to Iles Chausey is a standard nautical chart
Dutton's Nautical Navigation and Piloting, 15th Edition D2 - Baltic Sea - Gulf of Finland & Bothnia 7 The R-Numbering SystemOverview As paper navigational charts are replaced by vector images on computer screens, magnetic compasses enhanced by digital flux gate technology, and chronometers joined by atomic clocks, the demand has been mounting for an extensive update to the classic reference known worldwide as Dutton's. To meet the varied needs of today's recreational, naval, and commercial navigators the Naval Institute introduces this new edition of Dutton's Nautical