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Navigation charts at a scale of 1:50,000 or smaller (1:100,000 is a smaller scale than 1:50,000) use the Mercator projection, and have since at least the 1930s. [ 29 ] [ 30 ] The Mercator projection has the property of maintaining angles correctly, so that a line on the earth's surface that crosses all the meridians at the same angle (a rhumb ...
On nautical charts, the top of the chart is always true north, rather than magnetic north, towards which a compass points. Most charts include a compass rose depicting the variation between magnetic and true north. However, the use of the Mercator projection has drawbacks. This projection shows the lines of longitude as parallel.
English: Gnomonic chart for facilitating great circle sailing: North Atlantic. Not current - not to be used for navigation! ... United Kingdom Hydrographic Office ...
English: Nautical chart of Troon Harbour. Surveyed by Comr. C.G. Robinson 1841. Not current - not to be used for navigation! ... UK Hydrographic Office; UKHO ...
Date/Time Thumbnail Dimensions User Comment; current: 16:42, 27 September 2021: 5,448 × 4,440 (3.85 MB): Kognos: Uploaded a work by Hydrographic Office of the Admiralty from Original chart: {{PD-UKGov}} Any derivative rights in the digital version have been released by the National Library of Scotland under the following license: {{CC-BY 4.0}} with UploadWizard
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English: Nautical chart of the approaches to Blacksod Bay. Surveyed by Commander R.B. Beechey assisted by Lieut. A.G. Edye and Mr. A.B. Usborne, Master, 1851; Blacksod Bay bt Staff Captain W.F. Maxwell, 1900. Not current - not to be used for navigation!
English: Nautical chart of Hay Island to Bow Reef. North of Morris Island surveyed by Lieut. Commander W.V.S. Howard and the officers of H.M. Surveying Ship Dart, 1896-1897; South of Morris Island surveyed by Lieut. Commander J.F. Parry, H.M. Surveying Ship Dart, 1898.