Dugout (boat)From Wikipedia, the free encyclopedia

A Slavic dugout boat from the 10th century

A dugout or dugout canoe is a boat made from a hollowed tree trunk. Other names for this type of boat

are logboat and monoxylon. Monoxylon(μονόξυλον) (pl: monoxyla) is Greek -- mono- (single)

+ ξύλον xylon (tree) -- and is mostly used in classic Greek texts. In Germany they are

calledeinbaum ("one tree" in English). Some, but not all, pirogues are also constructed in this manner.

Dugouts are the oldest boats archaeologists have found, dating back about 8,000 years to the

Neolithic Stone Age.[1] This is probably because they are made of massive pieces of wood, which tend to

preserve better than, e.g., bark canoes. Along with bark canoe and hide kayak, dugout boats were also

used by indigenous peoples of the Americas.

Dugouts on the shore of Lake Malawi

Photographed in the Historic Center of Quito at the Old Military Hospital are these dug out canoes in the courtyard

Contents

  [hide] 

1 Construction

2 Africa

3 Asia

4 Europe

o 4.1 Western Europe

o 4.2 Eastern Europe

o 4.3 Northern Europe

5 North America

6 Pacific Islands

7 John F. Kennedy's PT-109

8 See also

9 References

10 External links

Construction[edit]

Building a seagoing dugout canoe 10 metres (33 ft) long. The sides have likely been heated and bent outward.

Construction of a dugout begins with the selection of a log of suitable dimensions. Sufficient wood needed

to be removed to make the vessel relatively light in weight and buoyant, yet still strong enough to support

the crew and cargo. Specific types of wood were often preferred based on their strength, durability, and

density. The shape of the boat is then fashioned to minimize drag, with sharp ends at the bow and stern.

First the bark is removed from the exterior. Before the appearance of metal tools, dugouts were hollowed-

out using controlled fires. The burnt wood was then removed using an adze. Another method using tools

is to chop out parallel notches across the interior span of the wood, then split out and remove the wood

from between the notches. Once hollowed out, the interior was dressed and smoothed out with a knife or

adze.

More primitive designs keep the tree's original dimensions, with a round bottom. However, it is possible to

carefully steam the sides of the hollow log until they are pliable, then bend to create a more flat-bottomed

"boat" shape with a wider beam in the centre.

For travel in the rougher waters of the ocean, dugouts can be fitted with outriggers. One or two smaller

logs are mounted parallel to the main hull by long poles. In the case of two outriggers, one is mounted on

either side of the hull.

Africa[edit]

The Dufuna canoe from Nigeria is an 8000-year-old dugout, the oldest boat discovered in Africa, and the

third-oldest worldwide. The well-wateredtropical rainforest and woodland regions of sub-Saharan Africa

provide both the waterways and the trees for dugout canoes, which are commonplace from the Limpopo

River basin in the south through East and Central Africa and across to West Africa. African Teak is the

timber favoured for their construction, though this comprises a number of different species, and is in short

supply in some areas. Dugouts are paddled across deep lakes and rivers or punted through channels in

swamps (see makoro) or in shallow areas, and are used for transport, fishing and hunting, including, in

the past, the very dangerous hunting of hippopotamus. Dugouts are

called pirogues in Francophone areas of Africa.

Asia[edit]

Centuries-old unfinished dugout boat (Philippines).

The Moken, an ethnic group that lives in Myanmar's Mergui Archipelago and the north of Thailand as sea

nomads, still builds and uses dugout canoes.[2] According to the Moken's accounts of their people's origin,

a mythical queen punished the forbidden love of their ancestral forefather for his sister-in-law by

banishing him and his descendants to life on sea in dugout canoes with indentations fore and aft ("a

mouth that eats and a rear that defecates"), symbolizing the unending cycle of ingestion, digestion and

evacuation.[3]

A centuries-old unfinished dugout boat, a big banca (five tons, measuring 8 by 2 by 1.5 meters) was

accidentally retrieved on November, 2010 by Mayor Ricardo Revita at Barangay Casanicolasan, Rosales,

Pangasinan, Philippines, in Lagasit River, near Agno River.[4] It is now on display in front of the Municipal

Town Hall.

Europe[edit]

Here many dugouts were made from linden wood, for several reasons. First of all it was abundant in the

Stone Age after the melting of the Weichselian glaciation of the last iceage and readily available.

Secondly it grew to be one of the tallest trees in the forests of these days, making it easier to build longer

boats. Thirdly linden wood lends itself well to carving and it doesn't split or crack so easily. Fourth it is

lighter and therefore have a better cargo capacity and is easier to carry, than most other tree types from

the European old-growth forests.

Western Europe[edit]

The Pesse canoe, found in the Netherlands, is a dugout which is believed to be the world's oldest boat,

carbon dated to between 8040 BCE and 7510 BCE.

Dugouts have also been found in Germany. In German, the craft are known as einbaum (one-tree). In the

old Hanseatic town of Stralsund three log-boats were excavated in 2002. Two of the boats was around

7000 years old and is thus the oldest boats of the Baltic area in existence. The third boat (6000 years

old), was 12 m long and therefore hold the record as the longest dugout in the region. The finds have

partly deteriorated due to poor storage conditions. [4] [5]

In 1991, remains of a linden wood log-boat of nearly 6 m, were found at Männedorf-Strandbad

in Switzerland at Lake Zürich. The boat have since been dated to be 6.500 years old. [6]

Eastern Europe[edit]

Eastern Europe 20th-century monoxylin

The Ukrainian dugout (dowbanka) from the end of the 19th century. Radomysl Castle, Ukraine [7]

De Administrando Imperio details how the Slavs built monoxyla that they sold to Vikings in Kiev.[8]These

ships were then used against the Byzantine Empire during the Rus'–Byzantine Wars of the 9th and 10th

centuries. They used dugouts to attack Constantinople and to withdraw into their lands with bewildering

speed and mobility. Hence, the name of Δρομίται ("people on the run") applied to the Rus in some

Byzantine sources. The monoxyla were often accompanied by larger galleys, that served as command

and control centres. Each Slavic dugout could hold from 40 to 70 warriors.

The Cossacks of the Zaporozhian Host were also renowned for their artful use of dugouts, which issued

from the Dnieper to raid the shores of the Black Sea in the 16th and 17th centuries. Using small, shallow-

draft, and highly maneuverable galleys known as chaiky, they moved swiftly across the Black Sea.

According to the Cossacks' own records, these vessels, carrying a 50 to 70 man crew, could reach the

coast of Anatolia from the mouth of the Dnieper River in forty hours.

More than 40 pre-historic log-boats have been found in the Czech Republic. The latest discovery was in

1999 of a 10 m long log-boat in Mohelnice (Šumperk District). It was cut out of a single oak log and have

a width of 1.05 m. The log-boat have been dated to around 1.000 BC and is kept at the 'Mohelnice

Muzeum' (Museum of National History). Geographically, Czech logboat sites and remains are clustered

along the Elbe and Morava Rivers.[9]

Poland is known for the socalled Lewin-type log-boats, found a Lewin Brzeski, Koźle and Roszowicki

Las accordingly. These boats, are characterized by square or trapezoidal cross-section, rectangular hull-

ends and low height of the sides in relation to vessel length. In addition, nearly all the Lewin-type boats

have a single hole in the bow and two at the stern. The low height is a result of the parent log being split

lengthwise in half, in order to obtain two identical timbers from a single trunk. The advantage lies in the

resulting identical twin hulls, which are then joined to form a double-hulled raft. The paired hulls were

joined by transverse poles, which did not go through the holes in the platform ends but were fastened to

the top walls or in special grooves at the hull ends. These vessels were typically 7–12 m in length, and

the largest of them could carry up to 1.5 tons of cargo because of the special design. The Lewin type

logboats are usually associated with thePrzeworsk culture in the early centuries AD. [10] [11]

Northern Europe[edit]

Expanding a dugout canoe at Basecamp Karuskose at Soomaa National Park

The Poole Logboat made from a single oak tree is over 2,000 years old. It is currently in the Poole Museum.

Many pre-historic dugout boats have been found in Scandinavia. These boats were used for transport on

calmer bodies of water, fishing and maybe occasionally for whaling and sealing. Dugouts require no metal

parts, and were common amongst the Stone Age people in Northern Europe until large trees suitable for

making this type of watercraft became scarce. Length was limited to the size of trees in the old-growth

forests—up to 12 metres (39 ft) in length. In Denmark in 2001 and some years prior to that, a few dugout

canoes of linden wood, was unearthed in a large scale archaeological excavation project in Egådalen, just

north of Aarhus. They have been carbon dated to the years 5210-4910 BCE and they are the oldest

known boats in Northern Europe. [12] [13]

Later models increased freeboard (and seaworthiness) by lashing additional boards to the side of the

boat. Eventually, the dugout portion was reduced to a solid keel, and the lashed boards on the sides

became a Lapstrake hull. [14]

In the United Kingdom, two log boats were discovered in Newport, Shropshire and are now on display

at Harper Adams University Newport. The Iron Age residents of Great Britain, were known to have used

logboats for fishing and basic trade. In 1964, a logboat was uncovered in Poole Harbour,Dorset.

The Poole Logboat dated to 300 BC, was large enough to accommodate 18 people and was constructed

from a giant oak tree. It is currently located in the Poole Museum. An even older logboat (the Hanson log

boat) was unearthed in 1998 in Shardlow south of Derby. It has been dated to the Bronze Ages around

1.500 BC and is now exhibited at Derby Museum and Art Gallery. There was another pre-historic boat at

the same location, but it was buried in situ.

In Northern Europe, the tradition of making dugout canoes survived into the 20th and 21st centuries only

in Estonia, where seasonal floods inSoomaa, a 390 km² wilderness area, make conventional means of

transportation impossible. In recent decades a new surge of interest in making dugouts

(Estonian haabjas) has revitalized the ancient tradition.[15]

North America[edit]

Main article: Pacific Northwest canoes

American Indians making a dugout canoe, 1590

A Seagoing dugout canoe

Dugout canoes were constructed throughout the Americas, where suitable logs were available.

The indigenous people of the Pacific Northwest are very skilled at crafting wood. Best known for totem

poles up to 80 feet (24 m) tall, they also construct dugout canoes over 60 feet (18 m) long for everyday

use and ceremonial purposes.[16]

In 1978, Geordie Tocher and two companions sailed a 3.5-short-ton (3.2 t), 40-foot (12 m) dugout canoe

(the Orenda II), made of Douglas fir, and based onHaida designs (but with sails), from Vancouver,

Canada to Hawaiʻi to add credibility to stories that the Haida had travelled to Hawaiʻi in ancient times.

Altogether they ventured some 4,500 miles (7,242 km) after two months at sea.[17][18]

The dugout canoes were made mostly of huge cedar logs in the state of Washington for the ocean

travellers, but natives that lived on the smaller rivers used smaller cedar logs.

Pacific Islands[edit]

Dugout canoes at Djuka Maroon village.

See also Māori migration canoes, Waka

In the Pacific Islands, dugout canoes are very large, made from whole mature trees and fitted

withoutriggers for increased stability in the ocean, and were once used for long-distance travel. Such

are the very large waka used by Māori who came to New Zealand probably from East Polynesia,

about 1280. Such vessels carried 40 to 80 warriors in calm sheltered coastal waters or rivers. It is

believed that trans-ocean voyages were made in Polynesian catamarans but none has ever been

found in New Zealand. In New Zealand smaller waka were made from a single log, often Totara,

because of its lightness, strength and resistance to rotting. Larger waka were made of about seven

parts lashed together with flax rope. All waka are characterized by very low freeboard.

In Hawaiʻi, waʻa (canoes) are traditionally manufactured from the trunk of the koa tree. They typically

carry a crew of six: one steersman and five paddlers.

John F. Kennedy's PT-109[edit]

The Solomon Islanders have used and continue to use dugout canoes to travel between islands.

In World War II these were used during the Japanese occupation - with their small visual and noise

signatures these were among the smallest boats used by the Allied forces in World War II. After the

sinking of PT-109, Biuki Gasa reached the shipwrecked John F. Kennedy by dugout.

See also[edit]