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Nelson Chequer
The Nelson Chequer was a colour scheme adopted by vessels of the Royal Navy, modelled on that used by Admiral Horatio Nelson in battle. It consisted of bands of black and yellow paint along the sides of the hull, broken up by black gunports. In the 18th and 19th centuries, vessels of all nations were painted in a variety of colours. Captains were allowed great latitude in the way they painted their vessels, as it aided identification in battle. Periodically the Royal Navy sought a uniform colour scheme; In 1715, an Admiralty order decreed the use of yellow and black, and a uniform colour within. However, this was generally ignored. Again in 1780 the Admiralty then issued a further order allowing captains to paint in yellow or black. Nelson favoured yellow, with black bands, he also had the underside of his gunports painted black. This meant that when the ports were closed the hull would appear striped, and when opened (ready for action) the hull would appear chequered. No che ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victory Starboard
The term victory (from Latin ''victoria'') originally applied to warfare, and denotes success achieved in personal combat, after military operations in general or, by extension, in any competition. Success in a military campaign constitutes a strategic victory, while the success in a military engagement is a tactical victory. In terms of human emotion, victory accompanies strong feelings of elation, and in human behaviour often exhibits movements and poses paralleling threat display preceding the combat, which are associated with the excess endorphin built up preceding and during combat. Victory dances and victory cries similarly parallel war dances and war cries performed before the outbreak of physical violence. Examples of victory behaviour reported in Roman antiquity, where the term ''victoria'' originated, include: the victory songs of the Batavi mercenaries serving under Gaius Julius Civilis after the victory over Quintus Petillius Cerialis in the Batavian rebell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strake
On a vessel's hull, a strake is a longitudinal course of planking or plating which runs from the boat's stempost (at the bows) to the sternpost or transom (at the rear). The garboard strakes are the two immediately adjacent to the keel on each side. The word derives from traditional wooden boat building methods, used in both carvel and clinker construction. In a metal ship, a strake is a course of plating. Construction In small boats strakes may be single continuous pieces of wood. In larger wooden vessels strakes typically comprise several planks which are either scarfed, or butt-jointed and reinforced with a butt block. Where the transverse sections of the vessel's shape are fuller, the strakes are wider; they taper toward the ends. In a riveted steel ship, the strakes were usually lapped and joggled (one strake given projections to match indentions in the one adjoining), but where a smoother finish was sought they might be riveted on a butt strap, though this was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull (watercraft)
A hull is the watertight body of a ship, boat, or flying boat. The hull may open at the top (such as a dinghy), 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. General features 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 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 the flat bottom of a landing craft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dazzle Camouflage
Dazzle camouflage, also known as razzle dazzle (in the U.S.) or dazzle painting, is a family of ship camouflage that was used extensively in World War I, and to a lesser extent in World War II and afterwards. Credited to the British marine artist Norman Wilkinson, though with a rejected prior claim by the zoologist John Graham Kerr, it consisted of complex patterns of geometric shapes in contrasting colours interrupting and intersecting each other. Unlike other forms of camouflage, the intention of dazzle is not to conceal but to make it difficult to estimate a target's range, speed, and heading. Norman Wilkinson explained in 1919 that he had intended dazzle primarily to mislead the enemy about a ship's course and so cause them to take up a poor firing position. Dazzle was adopted by the Admiralty in the UK, and then by the United States Navy. Each ship's dazzle pattern was unique to avoid making classes of ships instantly recognisable to the enemy. The result was that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Constitution
USS ''Constitution'', also known as ''Old Ironsides'', is a three-masted wooden-hulled heavy frigate of the United States Navy. She is the world's oldest ship still afloat. She was launched in 1797, one of six original frigates authorized for construction by the Naval Act of 1794 and the third constructed. The name "Constitution" was among ten names submitted to President George Washington by Secretary of War Timothy Pickering in March of 1795 for the frigates that were to be constructed. Joshua Humphreys designed the frigates to be the young Navy's capital ships, and so ''Constitution'' and her sister ships were larger and more heavily armed and built than standard frigates of the period. She was built at Edmund Hartt's shipyard in the North End of Boston, Massachusetts. Her first duties were to provide protection for American merchant shipping during the Quasi-War with France and to defeat the Barbary pirates in the First Barbary War. ''Constitution'' is most noted f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linseed Oil
Linseed oil, also known as flaxseed oil or flax oil (in its edible form), is a colourless to yellowish oil obtained from the dried, ripened seeds of the flax plant (''Linum usitatissimum''). The oil is obtained by pressing, sometimes followed by solvent extraction. Owing to its polymer-forming properties, linseed oil is often blended with combinations of other oils, resins or solvents as an impregnator, drying oil finish or varnish in wood finishing, as a pigment binder in oil paints, as a plasticizer and hardener in putty, and in the manufacture of linoleum. Linseed oil use has declined over the past several decades with increased availability of synthetic alkyd resins—which function similarly but resist yellowing. Linseed oil is an edible oil in demand as a dietary supplement, as a source of α-Linolenic acid, an omega-3 fatty acid. In parts of Europe, it is traditionally eaten with potatoes and quark. Structure and composition : 450px, Representative triglyceride f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buff (colour)
Buff (latin ''bubalinus'') is a light brownish yellow, ochreous colour, typical of buff leather. Buff is a mixture of yellow ochre and white: two parts of white lead and one part of yellow ochre produces a good buff, or white lead may be tinted with French ochre alone. As an RYB quaternary colour, it is the colour produced by an equal mix of the tertiary colours citron and russet. Etymology The first recorded use of the word ''buff'' to describe a colour was in ''The London Gazette'' of 1686, describing a uniform to be "...a Red Coat with a Buff-colour'd lining". It referred to the colour of undyed buffalo leather, such as soldiers wore as some protection: an eyewitness to the death in the Battle of Edgehill (1642) of Sir Edmund Verney noted "he would neither put on arms rmouror buff coat the day of the battle". Such buff leather was suitable for '' buffing'' or serving as a '' buffer'' between polished objects. It is not clear which bovine "''buffalo''" referr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochre
Ochre ( ; , ), or ocher in American English, is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand. It ranges in colour from yellow to deep orange or brown. It is also the name of the colours produced by this pigment, especially a light brownish-yellow. A variant of ochre containing a large amount of hematite, or dehydrated iron oxide, has a reddish tint known as "red ochre" (or, in some dialects, ruddle). The word ochre also describes clays coloured with iron oxide derived during the extraction of tin and copper. Earth pigments Ochre is a family of earth pigments, which includes yellow ochre, red ochre, purple ochre, sienna, and umber. The major ingredient of all the ochres is iron(III) oxide-hydroxide, known as limonite, which gives them a yellow colour. * Yellow ochre, , is a hydrated iron hydroxide (limonite) also called gold ochre. * Red ochre, , takes its reddish colour from the mineral hematite, which is an anhydrous i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topsides
The topsides on a boat, ship, watercraft, or floating production storage and offloading (FPSO) vessel, is that part of the hull (watercraft), hull between the waterline and the Deck (ship), deck.Rognaas, G., Xu, J., Lindseth, S., & Rosendahl, F. (2001). Mobile offshore base concepts. Concrete hull and steel topsides. ''Marine Structures'', ''14''(1-2), 5-23. It includes the visible parts of the Bow (watercraft), bow, stern, sheer, and, if present, tumblehome. On an offshore oil platform, topsides refers to the upper half of the structure, above the sea level, outside the splash zone, on which equipment is installed. This includes the oil production plant, the accommodation block and the drilling rig. They are often modular in design and so can be changed out if necessary allowing expensive platforms to be more readily updated with newer technology. It contrasts with the jacket structure, which constitutes the lower half of the platform structure (the supporting legs and lattice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Navy
The naval forces of the ancient Roman state ( la, Classis, lit=fleet) were instrumental in the Roman conquest of the Mediterranean Basin, but it never enjoyed the prestige of the Roman legions. Throughout their history, the Romans remained a primarily land-based people and relied partially on their more nautically inclined subjects, such as the Greeks and the Egyptians, to build their ships. Because of that, the navy was never completely embraced by the Roman state, and deemed somewhat "un-Roman". In antiquity, navies and trading fleets did not have the logistical autonomy that modern ships and fleets possess, and unlike modern naval forces, the Roman navy even at its height never existed as an autonomous service but operated as an adjunct to the Roman army. During the course of the First Punic War, the Roman navy was massively expanded and played a vital role in the Roman victory and the Roman Republic's eventual ascension to hegemony in the Mediterranean Sea. In the course of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Tactics In Ancient Greece
The Greek navy functioned much like the ancient Greek army. Several similarities existed between them, suggesting that the mindset of the Greeks flowed naturally between the two forms of fighting. The Greeks' success on land easily translated onto the sea. Greek naval actions always took place near the land so they could easily return to land to eat and to sleep, and allowing the Greek ships to stick to narrow waters to out-maneuver the opposing fleet.Casson 1991, p. 95. It was not uncommon for ships to beach and battle on land as well. Developing new techniques for the revolutionary trireme, and staying true to their land-based roots, the Greeks soon became a force to be reckoned with on the sea during the 5th century. They were also one of the greatest armies/naval forces in ancient times. Naval Tactics Battle formations In open sea, the Greek navy would sail in an upside-down ship formation, led by the commander's ship.Morrison 1974, p. 21. However, at first sight of enemy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wale (ship Part)
A wale is one of the strakes of wooden planking that forms the outer skin of the hull of a ship, but substantially thicker than the other strakes. It provides extra stiffening and strength to the hull. It was a common feature of heavy wooden ship construction, particularly from the Middle Ages to the early years of the 19th century, being a major constructional component of ships like , and many earlier vessels. A wale (or "waler") is a horizontal supporting member of a concrete forming system, vertically reinforced by a "strongback". A wale is also a horizontal member of a geotechnical tieback wall, which transmits the force from the tieback to the beams. See also *Strake On a vessel's hull, a strake is a longitudinal course of planking or plating which runs from the boat's stempost (at the bows) to the sternpost or transom (at the rear). The garboard strakes are the two immediately adjacent to the keel on ea ... References External links *{{wiktionary-inline, wal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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