C-Map Max Chart EW-M135: Portugal Coasts (Update) Pennant Flags Their innovative "flat-field" lenses eliminate

Their innovative "flat-field" lenses eliminate distortion and astigmatism from the center to the edges

The red star features a white outline and is representative of the four cardinal directions

1 Visual Navigation Aids

British Admiralty Nautical Chart 2291: Norway - West Coast

Captain Ahlstrom has commanded six merchant ships

C-Map Max Chart EW-M135: Portugal Coasts (Update) Pennant Flags Their innovative "flat-field" lenses eliminateWhy 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