5% off

Weems & Plath Parallel Plotter

Sale price £2659 Regular price £2795
Tax included

Delivery Information

We dispatch most orders within one working day. Admiralty charts are printed to order and may take two to three working days.

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... but better

Innovative tool for simplified course plotting

The Weems & Plath Parallel Plotter is a versatile navigation tool that simplifies course plotting and parallel line transfer on nautical charts.

This innovative plotter eliminates the need for traditional parallel rules or triangles, making it ideal for use in confined spaces. Its unique roller design allows for smooth and precise movement across the chart, ensuring accurate course plotting and bearing measurements.

Features:
  • 12.5-inch (32 cm) edge
  • Mounted on a roller assembly for easy movement
  • Two rollers ensure parallel alignment
  • Distance scales at 1:20,000, 1:40,000 and 1:80,000
  • Semi-circular and quarter-circle protractors for measuring bearings
  • Instruction manual included
  • Lifetime Warranty
How to Use a Parallel Plotter

To plot a course, align the plotter's edge with your desired course or bearing on the chart. Roll the plotter across the chart to transfer the line or angle to a new position. The integrated protractors allow you to measure bearings directly from any meridian on the chart, eliminating the need for a compass rose.

A History of Innovation

The Weems & Plath Parallel Plotter is a modern take on traditional navigation tools, offering a more convenient and efficient way to perform essential chartwork. Its unique design has made it a popular choice among sailors and navigators for its ease of use and accuracy.

About Weems & Plath

Founded in 1928 by Lieutenant Commander Philip Van Horn Weems, Weems & Plath has a long and distinguished history of providing sailors with high-quality nautical instruments and navigational tools. From the Weems Plotter to the Second Setting Watch, their innovations have helped shape the world of navigation.

Today, Weems & Plath continues to uphold its tradition of craftsmanship and precision, offering a wide range of navigational tools and instruments for sailors of all levels.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor do we have access to your credit card information.