Isomars Portland Plotter & One Hand Divider Combo

  • Isomars Portland Course Plotter is made of clear acrylic material.
  • In addition to normal traditional navigation requirements the Course Plotter is ideal for constructing instant tidal vectors.
  • The base has a fixed grid so the Course Plotter can be used to plot easily lat/longs from a Decca or GPS system.
  • Marine Navigation One Hand Divider 7 " is 7 inches long .
  • One-hand brass dividers can be opened and closed with one hand while performing chart work .
  • Handle is made up of brass .
  • Tapered sides are bright finished marine alloy.

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