Bronze Age Cat :: Catamaran Sailboats at TheBeachcats.com

A Catamaran with an Outrigger?
A recent BBC story concerning a possibly marine-related archaeological discovery in Wales reports some off-the-wall speculation about the find's significance. (Before going further, I must acknowledge that general news media like the BBC are often poor sources of information on scientific issues, and the reporting might badly misstate the facts.)

Three closely-spaced channels were discovered dug into the ground near the site of a vanished lake in Monmouth. All are 30m long; two adjacent ones are 1m wide, and the third beside them is narrower. The channels appeared over a mound of charcoal that has been carbon-dated to the Bronze Age (2,500 to 800 BCE in Britain).

According to Stephen Clarke of the Monmouth Archaeological Society, the find represents a kind of launching ramp for a Bronze boatbuilding facility. Although no boat remains or evidence of woodworking have been found at the site, artistic reconstructions show the site used to launch a canoe with twin dugout hulls and an outrigger.

Everything about this interpretation seems misinformed. To start with the boat:
The use of monohull dugouts in Bronze Age Britain is well proven. There is no prior evidence for multi-hulls.
A twin-hulled canoe of the size and breadth shown in the reconstruction would provide more than enough stability for any conceivable conditions on a lake. The outrigger serves no conceivable purpose. (Has any boat anywhere, used on any waters, ever had two main hulls plus an outrigger? I doubt it.)
If the site was indeed a boat launch, three alternatives offer more likely and practical interpretations: i. three monohulls (two wide, one narrow); ii. a twin-hulled canoe and a narrow monohull; or iii. an outrigger canoe and a wide monohull.
There is also no evidence for the use of sails in Britain's Bronze Age, although a mast is shown in both reconstructions, and a sail in the line drawing.

But even the notion that the site represents a boatbuilding facility, or any sort of boat-related facility, cannot be accepted so easily. Aside from the absence of woodworking or boat-related artifacts, the trenches make little sense for the purpose of boat launching. If one wanted to drag a heavy boat up and down the shore, the last thing he would do is carve channels that would increase friction around the hulls. Friction would be much lower if the rounded hulls rested on a flat plane, and flat ground would also permit the use of rollers or, if the ground was too soft or sticky, launching ways similar to Hawaiian canoe ladders.

Even if the trenches did make sense as a launch ramp, there is no reason for them to have been so long. Assuming that the color illustration is accurate in its depiction of the slope of the shore and the trenches' location relative to the water level, the trenches extend much farther than necessary to haul the boat(s) entirely out of the (non-tidal) lake. The amount of extra work that would have been required to dig the trenches, and to haul the boat any farther than just out of the water, makes its use as a boat launch unlikely.

One final item: since the trenches were found above the charcoal, they must be of more recent origin. Britain's Bronze Age lasted for 1700 years or so, and the article doesn't report the exact carbon-dated age of the charcoal, but from the information available, it seems possible that the trenches were dug after the end of the Bronze Age.

I have no better, alternate interpretation for the find, but the current one seems to be based on a poor understanding of boats and how they are used. The BBC article claims that Mr. Clarke has a book on the subject in the works: this promises to be a fanciful piece of pseudo-archaeology, akin, perhaps, to the laughable and inexplicably well-known The Life and Death of a Druid Prince.

(Thanks to Edwin Deady for pointing out the BBC article.)
(Both images are from the BBC article.)

http://indigenousboats.blogspot.ca/search/label/Bronze%20Age

Edited by kernunnos on May 29, 2014 - 05:15 PM.

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1975 P16 "Spring Rain"Sail # 642
Home Built 2004 Optimist-Delta "Unity"
So old it has Dino hide for a sail Chrysler "Pirateer"
Steve
Oyama BC
Lat 50.1167 N
Long 119.3667 W
1700 ft
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