Blundell Harling Speed-Time-Distance Calculator

Size:	170 × 56 mm

£9.60

Includes 20% VAT. Shipping calculated at checkout.

Blundell Harling Speed-Time-Distance Calculator is backordered and will ship as soon as it is back in stock.

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.

Speed, Time and Distance

Slide rule: set two, read the third

A speed, time and distance slide rule in the standard size: set two of speed, time and distance and read the third, whether the distance run from speed and time, the speed from a measured distance, or the time to go. The outer sleeve is high-impact plastic. The larger NATO pattern is also available.

About Blundell Harling

Blundell Harling, of Weymouth in Dorset, has made scale rules, drawing instruments and navigation plotters for more than 75 years. The Portland Course Plotter takes its name from the Isle of Portland, across the harbour.