5% off

Weems & Plath Parallel Plotter

Size:	318 × 76 × 13 mm

£26.59 £27.95

Includes 20% VAT. Shipping calculated at checkout.

Delivery Information

We dispatch most orders within one working day.

Admiralty charts are printed to order and are dispatched within two working days. If you'd like to know our current dispatch time or if you're up against a deadline please get in touch and we will do our best to help.

Shipping is free on orders over £50.

We ship to the UK. If you're ordering from outside the UK, get in touch and we'll see what we can do.

Friendly Advice

Got a question or need help finding something? We're a seafarer-run business and we're happy to help.

Fill in the contact form or use the chat button.

We're available seven days a week.

Returns

Not what you were looking for? No problem. We accept returns of items in as-sold condition within 30 days. Just let us know and we'll sort everything out, including the cost of return shipping.

Please note that Admiralty charts are not returnable as they are printed to order. See our returns policy for more information.

If anything arrives faulty or damaged, get in touch and we'll sort it out.

A Rolling Rule

12.5-inch rolling plotter with distance scales and protractors

A rolling plotter with a 12½-inch (32 cm) edge, for plotting courses and carrying lines across the chart where there is no room to walk a parallel rule. Two rollers keep it parallel as it moves.

It has distance scales at 1:20,000, 1:40,000 and 1:80,000, and semicircular and quarter-circle protractors for taking a bearing from any meridian. Instructions are included, with a lifetime warranty.

How to use a parallel plotter

Lay the edge along the course or bearing and roll the plotter across the chart to where you need the line. Use the protractors against a meridian to read or lay off a bearing without a compass rose.

About Weems & Plath

Founded in 1928 by Lieutenant Commander Philip Van Horn Weems, Weems & Plath has a long history of making instruments for navigators, from the Weems Plotter to the Second Setting Watch.