Our current dispatch time for Admiralty charts is 1-2 working days. 

All other items are dispatching within 1 working day.

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Weems & Plath

Weems & Plath Protractor Triangle with Handle

Size: 280 × 197 × 3 mm
£14.95
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 Triangle with a Pencil Handle

Navigation triangle with a protractor scale and handle

A navigation triangle with 7¾-inch (19.7 cm) sides and an 11-inch (27.9 cm) hypotenuse, in clear vinylite with red and black markings, a protractor scale and a black handle that holds a pencil. Sold singly: most navigators use a pair. Limited lifetime warranty.

How to use a pair of triangles

Lay one triangle's edge along the course or bearing, put the second against it, and slide the first along the second to carry the line across the chart, changing hands to go further. Set against a meridian, the protractor scale lays off a bearing without a compass rose, and the right angle helps with lines of position.

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.

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