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A hull is the watertight body of a ship, boat, submarine, or flying boat. The hull may open at the top, or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline.
The bilge of a ship or boat is the part of the hull that would rest on the ground if the vessel were unsupported by water. The "turn of the bilge" is the transition from the bottom of a hull to the sides of a hull.
A dry dock is a narrow basin or vessel that can be flooded to allow a load to be floated in, then drained to allow that load to come to rest on a dry platform. Dry docks are used for the construction, maintenance, and repair of ships, boats, and other watercraft.
The keel is the bottom-most longitudinal structural element on a watercraft. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. The laying of the keel is often the initial step in the construction of a ship. In the British and American shipbuilding traditions, this event marks the beginning date of a ship's construction.
Keelhauling is a form of punishment and potential execution once meted out to sailors at sea. The sailor was tied to a line looped beneath the vessel, thrown overboard on one side of the ship, and dragged under the ship's keel, either from one side of the ship to the other, or the length of the ship.
Tyger was the ship used by the Dutch captain Adriaen Block during his 1613 voyage to explore the East Coast of North America and the present day Hudson River. Its remains were uncovered in 1916 during the construction of the New York City Subway on land that is now part of the World Trade Center complex.
This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water. Some remain current, while many date from the 17th to 19th centuries. The word nautical derives from the Latin nauticus, from Greek nautikos, from nautēs: "sailor", from naus: "ship".
A ship is scuttled when its crew deliberately sinks it, typically by opening holes in its hull.
Ballast is used in ships to provide moment to resist the lateral forces on the hull. Insufficiently ballasted boats tend to tip or heel excessively in high winds. Too much heel may result in the vessel capsizing. If a sailing vessel needs to voyage without cargo, then ballast of little or no value will be loaded to keep the vessel upright. Some or all of this ballast will then be discarded when cargo is loaded.
Waterproofing is the process of making an object, person or structure waterproof or water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Such items may be used in wet environments or underwater to specified depths.
In solid mechanics, structural engineering, and shipbuilding, hogging and sagging describe the shape that a beam or similar long object will deform into when loading is applied. Hogging describes a beam that curves upwards in the middle, and sagging describes a beam that curves downwards.
Sitting volleyball is a form of volleyball for athletes with a disability. As opposed to standing volleyball, sitting volleyball players must sit on the floor to play.
A bilge keel is a nautical device used to reduce a ship's tendency to roll. Bilge keels are employed in pairs. A ship may have more than one bilge keel per side, but this is rare. Bilge keels increase hydrodynamic resistance, making the ship roll less. Bilge keels are passive stability systems.
Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship.
SS Benwood was a steam cargo ship of the early twentieth century. Built by Craig, Taylor & Co Ltd., Stockton on Tees, she entered service with Joseph Hoult & Co. Ltd, Liverpool. She passed through several owners, before being lost in a collision off the coast of Key Largo, Florida in 1942. Her wreck is now a popular dive site.
The major aspects of Medieval Scandinavian architecture are boathouses, religious buildings, and general buildings.
The Sparrow-Hawk was a 'small pinnace' similar to the full-rigged pinnace Virginia that sailed for the English Colonies in June 1626. She is the earliest ship to participate in the first decades of English settlement in the New World to have survived to the present day.
This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water. Some remain current, while many date from the 17th to 19th centuries. The word nautical derives from the Latin nauticus, from Greek nautikos, from nautēs: "sailor", from naus: "ship".
The Montego 19 is an American trailerable sailboat that was designed by Johannes "Jopie" Helsen as a pocket cruiser and first built in 1976.
The O'Day 192 is an American trailerable sailboat that was designed by John Deknatel of C. Raymond Hunt Associates, as a pocket cruiser and first built in 1984.
References
- ↑ "Keel Blocks". Wartsila.com (n.d).
- ↑ "Keel Blocks". Oxford Reference. Retrieved 10 October 2023.