The dogger was a form of fishing boat, described as early as the 14th century, that commonly operated in the North Sea. Originally single masted, in the seventeenth century, doggers were used with two masts. They were largely used for fishing for cod by rod and line. Dutch boats were common in the North Sea, and the word dogger was given to the rich fishing grounds where they often fished, which became known as the Dogger Bank. The sea area in turn gave its name to the later design of boat that commonly fished that area, and so became associated with this specific design rather than the generic Dutch trawlers.

Doggers were considerably smaller vessels in comparison, usually displacing around 13 tonnes, and carrying around a tonne of bait, three tonnes of salt, and half a tonne each of food and firewood for the crew. Around six tonnes of fish could therefore be carried. They would generally have been around 15 metres long, with a maximum beam of 4.5 metres, and a draught of about 1.5 metres. They had a rudder rather than a steering oar and high sides. A decked area forward probably provided limited accommodation for the crew, as well as a storage and cooking area, with a similar area aft. There would have been two small anchors, and one main anchor to allow for extended periods fishing in the same spot, in waters up to 18 metres deep. The dogger would also have carried a small open boat to maintain the lines and row ashore.

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