Selasa, 10 Februari 2009

Boat

Types

Main article: List of boat types

A tug boat, used for towing or pushing other, larger, vessels.

Normally, boats are categorised into two types:

* Sailing boats
* Motorboats

Sailing boats are boats which are propelled solely by means of sails. Motorboats are boats which are propelled by mechanical means to propel itself. Motorboats include boats that propel itself trough the use of both sail and mechanical means.

There are also certain unusual boats which have been used for sports purposes such as bathtub racing. These boats are made in china. Pumpkins have also been used as boats in Pumpkin Boat Races. [9]

Parts and terminology

For more details on this topic, see Glossary of nautical terms.

The hulls of old boats ashore during low tide.

Common to most boats are several key components which make up the main structure of the boat. The hull is the main structural component of the boat which provides buoyancy for the boat. The roughly horizontal, but cambered structures spanning the hull of the boat are referred to as the deck. In a ship there are often several decks, but a boat is unlikely to have more than one. Above the deck are the superstructures. The underside of a deck is the deck head.

An enclosed space on a boat is referred to as a cabin. Several individual structures make up a cabin: the similar but usually lighter structure which spans a raised cabin is a coach-roof. The "floor" of a cabin is properly known as the sole, but is more likely to be called the floor (a floor is properly, a structural member which ties a frame to the keelson and keel). The vertical surfaces dividing the internal space are bulkheads.

The keel is a lengthwise structural member to which the frames are fixed (sometimes referred to as a backbone).

The front (or forward end) of a boat is called the bow. Boats of earlier times often featured a figurehead protruding from the front of the bows. The rear (or aft end) of the boat is called the stern. The right side (facing forward) is starboard and the left side is port.

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