Weems & Plath ParaLock Plotter

Size:	184 x 76 x 15 mm

£29⁹⁵

VAT included

Delivery and Shipping

We aim to dispatch all orders by the next business day, but we're a small business and sometimes when it's busy it may take a little bit longer. If there's going to be any delays we'll get in touch and keep you up-to-date.

Shipping is free for all orders of £50 or more!

We work with Royal Mail, DPD and DHL to offer the most convenient delivery options to our customers.

Advice

Chris is a Master Mariner and knows a thing or two about seafaring. If you need any help then don't be shy - send us an email or get in touch using the WhatsApp icon.

Extended Returns

Not what you were looking for? No problem. We can accept returns of items in as-sold condition for up to 30 days (maybe a bit longer but don't tell anyone).

Any orders made from 14 November can be returned until the end of January!

Just let us know and we'll sort everything out, including the shipping cost back to us.

Unfortunately this doesn't apply to Print on Demand charts as they are correct at the time of printing.

Of course if there's any faults or damage then let us know and we'll make it right!

Clever GPS Plotter

Compact parallel rule for transferring GPS positions

The Weems & Plath ParaLock Plotter is a compact and innovative parallel rule designed specifically for transferring GPS positions to and from paper charts.

This unique plotter features a locking knob that allows you to quickly and accurately determine latitude and longitude coordinates. Its compact size makes it ideal for use on small chart tables or in confined spaces, while its clever design ensures precise and efficient chartwork.

Features:

7-1/4 inches (18.42cm) long
Sturdy, clear acrylic for maximum chart visibility
Locking knob for fixing the rule opening
Finger holes for enhanced grip and control
Graduations for use as a protractor
Ruler across the bottom for measuring distances
Fits in a pocket or drawer
Plastic storage sleeve with instructions
Limited Lifetime Warranty

How to Use the ParaLock Plotter

To transfer a GPS position to a chart, place one edge of the plotter at the latitude coordinate on the chart's scale. Open the device until the other edge aligns with the nearest parallel of latitude. Lock the plotter using the knob and slide it along the parallel of latitude until it reaches the approximate longitude coordinate. Repeat the process using a meridian line to determine the precise position.

A Modern Twist on a Classic Tool

The ParaLock Plotter combines the functionality of a traditional parallel rule with innovative features designed for modern navigation. Its compact size, locking knob, and finger holes make it a versatile and efficient tool for any navigator who works with paper charts and GPS coordinates.

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

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