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All Sails to the Wind!
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All Sails to the Wind!
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Polynesian Catamaran
The region of the Pacific Ocean we call Polynesia today, a large number
of islands and archipelagos scattered over a large area, was populated 3000 years ago by settlers arriving from Southeast Asia.
Since the islands could only be reached by sea, the construction of
sea vessels and navigation played a key role in the life of Polynesians.
One of their typical vessels was the catamaran. Polynesian catamarans developed from dugout canoes; two parallel hulls of equal size were
joined by wooden beams. The result was a fast and stable vessel with
a shallow draught. Catamarans usually had both paddles and masts
with sails. The fastest Polynesian catamarans could excel to a speed
of up to 12 knots (22 km/h).
Catamaran
A catamaran is a type of boat with a single deck supported by two separate, parallel hulls. Boats with three hulls are called trimarans. Catamarans have been used
on the Pacific Ocean, in Polynesia for centuries, but modern ships based on
this construction are built today as well.
Deck
The deck of the catamaran is held by transverse
beams, attached
to the pair of parallel hulls.
Polynesians
Over the centuries the population of Polynesia separated into several distinct ethnic groups: the Maori, Hawaiians, Tongans, Samoans, Tahitians. The picture shows Maori sailors, their faces decorated with traditional tattoo motifs.
Stern
The bow and stern were the same shape. This, together with the structure of the boat and the sails, made it possible to swap the ends of the vessel.
Wooden beams
The two parallel hulls
were joined together
by crossbeams.
Dimensions
Catamarans were made in various sizes, depending on their usage. The longest ones were up to 40 m long and were used for transport and long-distance voyages, as they could accommodate up to 150 people. War catamarans were designed to be particularly fast, so
they were narrow and had no mast or sails.
Crab claw sail
The shape of the simplest type of sail, used by the natives
of the Pacific islands, was an inverted acute triangle, which gradually evolved
into a crab claw shape.
The sails were woven
from leaves or plant fibres.
Evolution of the catamaran
Dugout boat (a canoe made from
a hollowed tree trunk)
Dugout boat with outrigger
Two dugout boats tied together into a double canoe
Mast
It was placed
between the two
hulls.
Catamaran
Modern catamaran
splashguard
safety rails
rigging
bow

