C-Map Max Chart EN-M611: Onezhskoe Lake (Update) Safety Signs An earlier modern design was

An earlier modern design was introduced in 1970

3 The Composite Great Circle

crucial for accurate navigation

how to use that equipment to meet different requirements

reflecting new developments and regulations in the shipping industry

C-Map Max Chart EN-M611: Onezhskoe Lake (Update) Safety Signs An earlier modern design wasWhy Update Your C Map Chart? Why Update Your C Map Chart? It is very important that the latest C Map charts are used when sailing out in the open water for safe navigation purposes. The C Map electronic chart libraries get updated twice a year to coincide with popular boating sessions. Included in the library updates are the latest notice to mariner updates from government hydrographic offices, updates to marina facilities, port services, photos and