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25-569: [REDACTED] Look up CB , C.B. , or C.-B. in Wiktionary, the free dictionary. CB and variants may refer to: Places [ edit ] CB postcode area , British post code for eastern England served by the Cambridge postal sorting office Cambodia (LOC MARC code, obsolete FIPS Pub 10-4 country code and obsolete NATO digram CB) Cape Breton (disambiguation) Centura București ,

50-505: A United States Navy unit responsible for any type of construction be it general or combat on land or under water. Curveball, a music festival hosted by the band Phish Cone Beam (especially CBCT; Cone beam computed tomography ) Cumulative Bulletin, an annual compilation of the Internal Revenue Bulletin See also [ edit ] C♭ (musical note) C♭ major C-flat minor Topics referred to by

75-558: A group of midget submarines built for the Italian Navy during World War II Block coefficient (C b ), a parameter describing the shape of a ship's hull A retired US Navy hull classification symbol: Large cruiser (CB) Sports [ edit ] Positions [ edit ] Centre-back , a defensive position in association football Cornerback , a position in American football Teams [ edit ] Chicago Bears ,

100-534: A group of substances that bind to animal cannabinoid receptors Circuit breaker , an automatic electrical switch designed to protect an electrical circuit from damage caused by overcurrent Columbium (Cb), an obsolete name for the element niobium Conduction band of the electrons in a (semiconducting) solid Confirmation bias Cumulonimbus cloud (Cb), a type of cloud that is tall, dense, and involved in thunderstorms and other intense weather Sea vessels [ edit ] CB-class midget submarine ,

125-545: A hull with rounded bilges (the chine creates turbulence and drag resisting the rolling motion, as it moves through the water, the rounded-bilge provides less flow resistance around the turn). In rough seas, this can make the boat roll more, as the motion drags first down, then up, on a chine: round-bilge boats are more seakindly in waves, as a result. Chined hulls may have one of three shapes: Each of these chine hulls has its own unique characteristics and use. The flat-bottom hull has high initial stability but high drag. To counter

150-466: A lower-horsepower engine but will pound more in waves. The deep V   form (between 18   and 23   degrees) is only suited to high-powered planing boats. They require more powerful engines to lift the boat onto the plane but give a faster, smoother ride in waves. Displacement chined hulls have more wetted surface area, hence more drag, than an equivalent round-hull form, for any given displacement. Smooth curve hulls are hulls that use, just like

175-432: A nearly perfect box in the case of scow barges to a needle-sharp surface of revolution in the case of a racing multihull sailboat. The shape is chosen to strike a balance between cost, hydrostatic considerations (accommodation, load carrying, and stability), hydrodynamics (speed, power requirements, and motion and behavior in a seaway) and special considerations for the ship's role, such as the rounded bow of an icebreaker or

200-561: A reversal of a banking or credit card transaction Convertible bond , a type of bond that can convert into a specified number of shares Science and technology [ edit ] Computing and telecommunications [ edit ] Cell Broadcast , in GSM mobile networks Citizens band radio (CB radio), a system of short-distance radio communications Closed beta , a software development stage or testing process Other uses in science and technology [ edit ] Cannabinoids ,

225-585: A ring road of Bucharest, Romania Colegio Bolivar , an American school in Cali, Colombia Colwyn Bay , Wales Province of Campobasso , Italy ČB – České Budějovice , Czech Republic People [ edit ] Chris Brown (born 1989), American R&B singer Chris Bosh (born 1984), American basketball player Henry Campbell-Bannerman (1836–1908), Prime Minister of the United Kingdom 1906–1908, widely referred to by his surname initials Chauncey

250-990: A team in the National Football League Chicago Bulls , a team in the National Basketball Association Cleveland Browns , a team in the National Football League Cincinnati Bengals , a team in the National Football League Chicago Blackhawks , a team in the National Hockey League Titles [ edit ] Chief Baron of the Exchequer , the chief judge of the Court of Exchequer, an abolished English court Companion of The Most Honourable Order of

275-399: Is a centerline longitudinal member called a keel . In fiberglass or composite hulls, the structure may resemble wooden or steel vessels to some extent, or be of a monocoque arrangement. In many cases, composite hulls are built by sandwiching thin fiber-reinforced skins over a lightweight but reasonably rigid core of foam, balsa wood, impregnated paper honeycomb, or other material. Perhaps

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300-458: Is different from Wikidata All article disambiguation pages All disambiguation pages CB">CB The requested page title contains unsupported characters : ">". Return to Main Page . Block coefficient There is a wide variety of hull types that are chosen for suitability for different usages, the hull shape being dependent upon the needs of the design. Shapes range from

325-423: Is easily unsettled in waves. The multi-chine hull approximates a curved hull form. It has less drag than a flat-bottom boat. Multi chines are more complex to build but produce a more seaworthy hull form. They are usually displacement hulls. V or arc-bottom chine boats have a V   shape between 6°   and 23°. This is called the deadrise angle. The flatter shape of a 6-degree hull will plane with less wind or

350-610: The Yngling and Randmeer . Hull forms are defined as follows: Block measures that define the principal dimensions. They are: Form derivatives that are calculated from the shape and the block measures. They are: Coefficients help compare hull forms as well: Note: C b = C p ⋅ C m {\displaystyle C_{b}=C_{p}\cdot C_{m}} Use of computer-aided design has superseded paper-based methods of ship design that relied on manual calculations and lines drawing. Since

375-445: The waterline , giving less resistance and more speed. With a greater payload, resistance is greater and speed lower, but the hull's outward bend provides smoother performance in waves. As such, the inverted bell shape is a popular form used with planing hulls. A chined hull does not have a smooth rounded transition between bottom and sides. Instead, its contours are interrupted by sharp angles where predominantly longitudinal panels of

400-442: The "upper deck", "weather deck", "spar deck", " main deck ", or simply "deck". The particular name given depends on the context—the type of ship or boat, the arrangement, or even where it sails. In a typical wooden sailboat, the hull is constructed of wooden planking, supported by transverse frames (often referred to as ribs) and bulkheads, which are further tied together by longitudinal stringers or ceiling. Often but not always there

425-630: The Bath , a title conferred to British and Commonwealth citizens Other uses [ edit ] All pages with titles beginning with C. B. 2020 Singapore circuit breaker measures , commonly abbreviated as CB, a stay-at-home order implemented in response to the COVID-19 pandemic in Singapore CB, dominical letter for a leap year starting on Friday Casus belli , a Latin expression meaning reason for war Construction Battalion (CB or "Seabee"),

450-534: The Bear , a imaginary friend in 2024 film Imaginary Brands and enterprises [ edit ] Carte Bancaire , a bank card brand Christianssands Bryggeri , a Norwegian brewery ScotAirways (IATA airline code CB) Business and financial terms [ edit ] Capacity building , the process by which individuals and organizations obtain, improve, and retain the skills and knowledge needed to undertake their tasks Certification body Chargeback ,

475-513: The curved hulls, a centreboard, or an attached keel. Semi round bilge hulls are somewhat less round. The advantage of the semi-round is that it is a nice middle between the S-bottom and chined hull. Typical examples of a semi-round bilge hull can be found in the Centaur and Laser sailing dinghies . S-bottom hulls are sailing boat hulls with a midships transverse half-section shaped like an s . In

500-479: The earliest proper hulls were built by the Ancient Egyptians , who by 3000 BC knew how to assemble wooden planks into a hull. Hulls come in many varieties and can have composite shape, (e.g., a fine entry forward and inverted bell shape aft), but are grouped primarily as follows: At present, the most widely used form is the round bilge hull. With a small payload, such a craft has less of its hull below

525-405: The flat bottom of a landing craft . In a typical modern steel ship, the hull will have watertight decks, and major transverse members called bulkheads . There may also be intermediate members such as girders , stringers and webs , and minor members called ordinary transverse frames, frames, or longitudinals, depending on the structural arrangement . The uppermost continuous deck may be called

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550-412: The high drag, hull forms are narrow and sometimes severely tapered at bow and stern. This leads to poor stability when heeled in a sailboat. This is often countered by using heavy interior ballast on sailing versions. They are best suited to sheltered inshore waters. Early racing power boats were fine forward and flat aft. This produced maximum lift and a smooth, fast ride in flat water, but this hull form

575-417: The hull meet. The sharper the intersection (the more acute the angle), the "harder" the chine. More than one chine per side is possible. The Cajun "pirogue" is an example of a craft with hard chines. Benefits of this type of hull include potentially lower production cost and a (usually) fairly flat bottom, making the boat faster at planing . A hard chined hull resists rolling (in smooth water) more than does

600-487: The s-bottom, the hull has round bilges and merges smoothly with the keel, and there are no sharp corners on the hull sides between the keel centreline and the sheer line. Boats with this hull form may have a long fixed deep keel, or a long shallow fixed keel with a centreboard swing keel inside. Ballast may be internal, external, or a combination. This hull form was most popular in the late 19th and early to mid 20th centuries. Examples of small sailboats that use this s-shape are

625-401: The same term [REDACTED] This disambiguation page lists articles associated with the title CB . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=CB&oldid=1257381250 " Category : Disambiguation pages Hidden categories: Short description

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