From the loom to the sea - when the weaver set ships in motion

What does a loom have to do with a sailing ship?
When we think of ships from, for example, the Viking Age, we often imagine long wooden vessels, skilled boatbuilders, and life on board. But a Viking ship was more than just a wooden hull. Without a sail, the ship was dependent on oars, and the sail began somewhere completely different than in the shipyard – with fibers, yarn, and a weaver.

From sheep to ship
Viking Age sails were made of both wool and flax. Wool was particularly well-suited for large sails because it is elastic and does not rot in the same way as flax. On the other hand, wool is heavier and requires extensive processing.

The wool had to be selected, processed, and spun into a strong yarn, which was then woven tightly and uniformly. The finished fabric had to be able to withstand both the wind and the strain of the large sailcloth.

Therefore, it was not just a question of producing a piece of fabric. The weaver helped produce what would propel the ship forward:

Sheep → wool → spinning → weaving → sailcloth → sail → ship

A sail could be an enormous weaving project
For many years, the Viking Ship Museum has worked experimentally with producing wool sails based on archaeological textile finds and historical sails.

An impressive example is the sail for the reconstruction of Skuldelev 1, Ottar. The original ship was a seagoing merchant vessel from around the year 1030, and the reconstruction was initially fitted with a 90 m² wool sail. The wool came from at least 200 sheep, and 157 meters of wool fabric were woven in strips 65 cm wide. The weaving itself required about 7,850 working hours.

90 m² is roughly the size of a small apartment – and it all began with wool from sheep.

The weaver as part of the ship's technology
A Viking ship was created through a collaboration between many different crafts. The boatbuilder built the hull, the weaver produced the sailcloth, the ropemaker was responsible for the rigging, the blacksmith for the iron parts, and the sailmaker assembled and fitted the sail.

If one part didn't work, it affected the rest. A Viking ship was therefore not just a piece of woodwork, but an interplay between a number of different crafts – and the weaver was an important part of this.

A craft that could make a ship sail
There is also an interesting gender-historical dimension. Weaving was in many historical societies a female-dominated craft, and the Viking Ship Museum describes the production of wool sails as a time-consuming craft performed by women.

This provides a different perspective on Viking seafaring. When we imagine the famous Vikings on board the ship, it is easy to overlook the work that took place on land and made the journey possible. Part of this work could have been carried out at a loom – far from the sea.

The loom that stood upright
Among other things, the Viking Ship Museum has worked with upright warp-weighted looms to investigate how Viking Age sailcloth might have been produced. The museum's reconstruction of Ottar's wool sail was woven on a so-called warp-weighted loom, an almost vertical loom used in the Viking Age.

This is experimental archaeology: We do not have a complete manual that explains exactly how a Viking sail was woven. Instead, archaeological finds are combined with practical trials to investigate what is actually possible.

That is part of what is fascinating about archaeology. Sometimes you cannot just read the answer – you have to weave it into existence.

When the thread becomes a sail
A sail didn't just have to be large. It had to be strong, dense, and able to withstand both wind and water.

For Ottar, the finished wool fabric was, among other things, treated with ochre and horse mane fat to make it more windproof and water-repellent. Both wool and flax sails required post-treatment to be able to withstand wind and water.

The weaver, therefore, did not just have to create a beautiful or comfortable fabric. The fabric had to be able to withstand the strain from the mast, yard, and rigging – and ultimately bring a ship across the sea.

The loom and the ship have more in common than one would think
Perhaps that is precisely why the loom and the ship are interesting to compare.

On the loom, you work with tension, balance, and forces. The warp must have the correct tension, the threads must be kept in place, and the weft is bound together with the warp into a strong construction.

On the ship, it is also about making many forces work together. The mast must stand, the rigging must hold, the sail must be shaped by the wind, and the ropes must be able to absorb the strain.

It is not the same technology, but the principles have something in common: Many individual parts must function as one unified construction.

And then there are the words
The connection between weaving and seafaring can also be traced in the language.

One of the most interesting examples is bom (boom) – and actually also the verb bomme (to gybe).

On the loom, bomme means to arrange the warp around the warp beam. On a sailing ship, bomme (gybing) is a nautical term for moving the boom from one side of the ship to the other during a turn. The Dictionary of the Danish Language documents both meanings.

It is a fine example of how the same word can be part of two different crafts.

Another small example is knob (knot). The word is related to knude (knot) and was originally used for knots on a line that was used to measure a ship's speed. Today, we know a knot as the nautical unit of measurement for speed. Here, too, we encounter a word from a world where thread, line, binding, and tension were crucial.

There are, of course, many other words in the maritime and textile vocabulary, but one must be careful about calling them common weaving and seafaring words without being able to document it. The interesting thing is perhaps precisely to investigate how each of the crafts has developed a precise language for materials, tension, fastening, and movement.

From the loom to the sea
Perhaps the most fascinating thing about the story is that the distance between the loom and the ship is not actually that great.

A ship can begin with a sheep in a field, with fibers that become yarn, and with a weaver who transforms the yarn into sailcloth. Then the sailcloth becomes a sail, which is tensioned over the ship, and when the wind catches it, the result of many hours of craftsmanship becomes visible.

Wool → yarn → loom → sailcloth → sail → ship → sea

A long chain of crafts, where the weaver is one of the crucial links.

For a loom does not only produce textiles. Throughout history, it has also helped produce transport, trade, travel, and connections between people.

And sometimes, it has helped send a ship out onto the sea.

From sheep to voyage

Wool → yarn → loom → sailcloth → sail → ship → sea
In the middle of this chain stands the weaver.

Source
Read more about the Viking Ship Museum's work with weaving and the production of sailcloth:
Viking Ship Museum – The ship's craftsmen: The weaver