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A boat displaces its weight in water, regardless whether it is made of wood, steel, fiberglass, or even concrete. If weight is added to the boat, the volume of the hull drawn below the waterline will increase to keep the balance above and below the surface equal. Boats have a natural or designed level of buoyancy.
From a design point of view, a boat’s hull type reflects its use and the waters it will be used it. These include displacement hulls, vee-bottom hulls, modified vee-bottom hulls, deep-vee hulls and trim tabs for vee-bottom hulls. The three main hull materials are wood, reinforced fiberglass and metal. Wood hulls may be made of planks or plywood.
Cold moulding is a composite method of wooden boat building that uses two or more layers of thin wood, called veneers, oriented in different directions, resulting in a strong monocoque structure, similar to a fibreglass hull but substantially lighter. Sometimes composed of a base layer of strip planking followed by multiple veneers.
Rafts divide into a number of types bundle raft can be made from, for example, papyrus that has been tied into bundles. These can even be shaped; Boats and ships, which float by having the submerged part of their structure exclude water with a waterproof surface, so creating a space that contains air, as well as cargo, passengers, crew, etc. In ...
This is a list of boat types. For sailing ships , see: List of sailing boat types This is a dynamic list and may never be able to satisfy particular standards for completeness.
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A rigid-hulled dinghy can be made of wood (using either traditional or modern techniques), fibreglass or, more recently, moulded polypropylene. Inflatable dinghies solve some of the storage problems for tenders for yachts, though a fast inflatable boat powered by a powerful outboard motor would not be considered a dinghy.
These materials are resistant to the collisions and heavy wear the boats experience when traveling through whitewater [4]. Whitewater rafts are also designed with high rocker, an raised bow and stern which allows them to pass over waves and obstacles more easily [5]. Most have drain holes in the floor to prevent the boat from becoming swamped ...