Nautical Instruments

While electronic navigation chart advances are an important milestone in the science of nautical navigation, many mariners carry on the traditions associated with navigation by plotting a position and a course on a paper nautical chart. They accomplish this task using traditional marine navigation tools, including: compasses, chart dividers, rulers, protractors, sextants, chart plotters, binoculars, chronometers, star finders, and more.

Most large commercial ships use electronic navigation methods as they are required under the SOLAS convention to use ECDIS as the primary means of navigation. However, many navigation officers and smaller, recreational vessels continue to work with traditional nautical charts to navigate and plot their courses using the same basic, yet ingenious, nautical tools used by ocean-sailing mariners for centuries. It is important that mariners remain knowledgeable on the use of these navigation tools in case the need arises to use paper nautical charts. It is good seamanship for mariners to know how to use these nautical tools work and to pass on that information to the next generation. 

High-quality modern nautical tools also make great gifts for anyone with a love of maritime history. Any sailor who uses traditional navigation techniques would appreciate receiving these items as a gift. 

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Showing: 1-14 of 14
  • $26.95 $29.95
    The 18” Aluminum Arm Parallel Ruler features aluminum arms and handles. The aluminum parallel ruler is manufactured to a 1/4" thickness and 18” length. The high-quality construction of the aluminum parallel ruler is backed with a lifetime warranty. An essential item in any proper navigation kit,...
  • $23.95 $29.95
    36" (1 Metre) Acrylic ruler Outstanding accuracy and clarity  High quality clear acrylic material Parallel lines to assist with line-up Divided in millimetres and inches
  • $19.95 $24.95
    Middy Instructional - Bar Parallel Ruler 400mm Budget version of the Captain Fields' Pattern Parallel Rule Excellent buy for use in the classroom Manufactured from 6mm acrylic  Incorporates rigid aluminium links Sizes Available: 400mm
  • $28.95 $36.95
    Captain Fields' Pattern - Bar Parallel Rule 400mm Divided with protractor markings (double reading) and compass points Manufactured from high quality 6mm acrylic Bevelled on all four edges with solid brass links All other metallic parts are manufactured from non-corrosive materials Rubbe...
  • $44.95 $56.95
    Captain Fields' Pattern - Bar Parallel Rule 400mm Divided with protractor markings (double reading) and compass points Manufactured from high quality 6mm acrylic Bevelled on all four edges with solid brass links All other metallic parts are manufactured from non-corrosive materials Rubbe...
  • $45.95 $57.95
    Captain Fields' Pattern - Bar Parallel Rule 400mm Divided with protractor markings (double reading) and compass points Manufactured from high quality 6mm acrylic Bevelled on all four edges with solid brass links All other metallic parts are manufactured from non-corrosive materials Rubbe...
  • $18.95 $21.95
  • $19.95 $25.95