Parallel Rules & Plotters

A parallel rule carries a direction across the chart without changing its angle, from your course line to the compass rose and back. Rolling plotters do the same on an aluminium roller and need far less table space.

Choose aluminium, brass or chrome-armed parallel rules in several lengths, the classic Weems Parallel Plotter or the pocket-sized ParaLock for transferring GPS positions.

Showing 1-6 of 6 item(s)

Weems & Plath Parallel Rule Aluminium Arms - 18 in

Parallel Rules & Plotters

Weems & Plath Parallel Rule Aluminium Arms - 18 in

An 18-inch parallel rule with protractor scale, the essential tool for laying off courses.Limited lifetime warranty from Weems & Plath on the movement, for as long as you own the instrument. View the warranty terms (PDF)

Weems & Plath Deluxe Parallel Rule Brass Arms - 15 in

Parallel Rules & Plotters

Weems & Plath Deluxe Parallel Rule Brass Arms - 15 in

A 15-inch parallel rule with solid brass arms and handles: traditional elegance for a classic tool.Limited lifetime warranty from Weems & Plath on the movement, for as long as you own the instrument. View the warranty terms (PDF)

Weems & Plath Commercial Parallel Rule Chrome Arms - 24 in

Parallel Rules & Plotters

Weems & Plath Commercial Parallel Rule Chrome Arms - 24 in

An extra-long 24-inch parallel rule with rigid chrome arms, made for large charts.Limited lifetime warranty from Weems & Plath on the movement, for as long as you own the instrument. View the warranty terms (PDF)

Weems & Plath Compact ParaLock Plotter - 7¼ in

Parallel Rules & Plotters

Weems & Plath Compact ParaLock Plotter - 7¼ in

A pocket-sized parallel rule with locking knob, designed to transfer GPS positions to a paper chart in seconds.Limited lifetime warranty from Weems & Plath on the movement, for as long as you own the instrument. View the warranty terms (PDF)

Weems & Plath Weems Parallel Plotter - 12½ in

Parallel Rules & Plotters

Weems & Plath Weems Parallel Plotter - 12½ in

The most popular rolling plotter from Weems & Plath: roll it across the chart and it stays perfectly parallel.Limited lifetime warranty from Weems & Plath on the movement, for as long as you own the instrument. View the warranty terms (PDF)

Blundell Harling Captain Field's Parallel Rule - 600 mm

Parallel Rules & Plotters

Blundell Harling Captain Field's Parallel Rule - 600 mm

Blundell Harling

A long British parallel rule in 6 mm clear acrylic with solid brass links and the classic Captain Field's double-reading scale, made for large charts.

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Price

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Manufacturers

Blundell Harling 1
Weems & Plath 5

Material

Brass 1
Plastic 5

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