Blundell Harling | Barcode: 5020027060233

Blundell Harling Speed-Time-Distance Calculator

Size:	170 x 56 mm

£8³⁹

VAT included

Delivery Information

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.

Friendly 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.

Easy 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).

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!

Nautical Slide Rule

For quick and easy speed/distance/time calculations.

The Blundell Harling Speed-Time-Distance Slide Rule is a practical navigation tool designed to simplify essential maritime calculations. By inputting any two variables—speed, time, or distance—you can quickly determine the third, facilitating efficient voyage planning and real-time decision-making.

Crafted with a high-impact plastic outer sleeve, this slide rule ensures durability and longevity, even in demanding marine environments. Its compact size makes it convenient for use on various vessels, from small boats to larger ships.