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    Rules, proactors and dividers

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    Portland Solid Brass Single Handed Divider 7"

    $17.34
    Traditionally designed Solid Brass finish Stainless steel points

    Portland Solid Brass Straight Divider 7"

    $17.34
    Traditionally designed Solid Brass finish Stainless steel points

    Portland Solid Brass Straight Divider 8"

    $18.06
    Design tradicional Acabamento em latão sólido Pontos de aço inoxidável

    Chart Divider 200 mm

    $10.16
    Portland Navigational Triangle 230mm Features protractor markings and compass points with reciprocals in red Scale in millimetres Manufactured from strong acrylic

    Chart Divider 230 mm

    $10.72
    Portland Navigational Triangle 230mm Features protractor markings and compass points with reciprocals in red Scale in millimetres Manufactured from strong acrylic Can be used in pairs as a Parallel Rule Also available in 230mm

    Portland Course Plotter

    $61.69
    Movable disc enables magnetic variation to be set on the instrument Movable arm is divided into millimetres Captain Fields’ protractor markings Comfortably covers the largest Admiralty Chart Pencil guide holes give precision loction Unique design ensures a truly parallel action Special “slip and grip” for ease of use Manufactured from clear acrylic 400mm in length

    Speed Time Distance Calculator

    $13.19
    Simple to use slide rule Calculates the third variable given the other two (distance covered, given speed and elapsed time) Outer sleeve manufactured from high impact plastic

    Parallel ruler 400 mm

    $36.25
    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 Rubber pads are fitted to the underside to prevent slipping

    Parallel Ruler Captain Fields Pattern

    $60.11
    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 Rubber pads are fitted to the underside to prevent slipping

    Portland Course Plotter

    $19.37
    The Portland Course Plotter Used worldwide by practical and shore based instructors Bright blue directional arrow prevents accidental reciprocal bearings Edges are graduated for tide and boat speed Base has a fixed grid so it is easy to plot latitude from your GPS system Comprehensive instructions included

    Divider with pencil 7"

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    Single hand divider 8"

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