Nautical Charts

  One of the most important tools required for marine navigation is the nautical chart, which provides information necessary for safe navigation, including water depths,

 bottom quality, coast lines and topography, positions of aid to navigation and other conspicuous landmarks, etc.


  ●The nautical charts are classified as listed below according to the purpose of navigation.


　

  • Harbor charts: 1:50,000 and larger scales

  • Coast charts: 1:50,000 - 1:300,000

  • General charts of coast: 1:300,000 - 1:1,000,000

  • Sailing charts: 1:1,000,000 - 1:4,000,000

  • General charts: 1:4,000,000 and smaller scales


      Harbour Plans

　

 

　

　

　

　

　

　

 

●Also available are radio navigational charts, such as Loran charts and Decca charts, and are fisheries charts. 


Electronic Navigational Charts (ENC)

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