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Lateen
A lateen (from French ''latine'', meaning "Latin") or latin-rig is a triangular sail set on a long yard mounted at an angle on the mast, and running in a fore-and-aft direction. The settee can be considered to be an associated type of the same overall category of sail. The lateen originated in the Mediterranean as early as the 2nd century CE, during Roman times, and became common there by the 5th century. The wider introduction of lateen rig at this time coincided with a reduction in the use of the Mediterranean square rig of the classical era. Since the performance of these two rigs is broadly similar, it is suggested that the change from one to the other was on cost grounds, since lateen used fewer components and had less cordage to be replaced when it wore out. Arab seafarers adopted the lateen rig at a later datethere is some limited archaeological evidence of lateen rig in the Indian Ocean in the 13th century CE and iconographic evidence from the 16th century. It has been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sail
A sail is a tensile structure—which is made from fabric or other membrane materials—that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails may be made from a combination of woven materials—including canvas or polyester cloth, laminated membranes or bonded filaments—usually in a three- or four-sided shape. A sail provides propulsive force via a combination of lift and drag, depending on its angle of attack—its angle with respect to the apparent wind. Apparent wind is the air velocity experienced on the moving craft and is the combined effect of the true wind velocity with the velocity of the sailing craft. Angle of attack is often constrained by the sailing craft's orientation to the wind or point of sail. On points of sail where it is possible to align the leading edge of the sail with the apparent wind, the sail may act as an airfoil, generating propulsive force as ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crab Claw Sail
The crab claw sail is a fore-and-aft triangular sail with spars along upper and lower edges. The crab claw sail was first developed by the Austronesian peoples some time around 1500 BC. It is used in many traditional Austronesian cultures in Island Southeast Asia, Micronesia, Island Melanesia, Polynesia, and Madagascar. Due to its extraordinary performance and ease of operation, it has also become very popular in modern sport sailing. It is sometimes known as the Oceanic lateen or the Oceanic sprit, even though it is not restricted to Oceania, is neither a lateen sail nor a spritsail, and has an independent older origin. History Crab-claw sails were invented by the Austronesians somewhere in Island Southeast Asia at no later than 1500 BCE. It was derived from a more ancient mast-less V-shaped square rig consisting simply of a square or triangular sail on two spars perpendicular to the hull converging at the base. It spread with the Austronesian migration to Micronesia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dromon
A dromon (from Greek δρόμων, ''dromōn'', "runner") was a type of galley and the most important warship of the Byzantine navy from the 5th to 12th centuries AD, when they were succeeded by Italian-style galleys. It was developed from the ancient liburnian, which was the mainstay of the Roman navy during the Empire. Middle English ''dromond'' and Old French ''dromont'' are derived from the dromon, and described any particularly large medieval ship. Evolution and features The appearance and evolution of medieval warships is a matter of debate and conjecture; until recently, no remains of an oared warship from either ancient or early medieval times had been found and information had to be gathered by analyzing literary evidence, crude artistic depictions and the remains of a few merchant vessels (such as the 7th-century Pantano Longarini wreck from Sicily, the 7th-century Yassi Ada ship and the 11th-century Serçe Limanı wreck). Only in 2005–2006 did archaeological di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Settee (sail)
The settee sail was a lateen sail with the front corner cut off, giving it a quadrilateral shape. It can be traced back to Greco-Roman navigation in the Mediterranean in late antiquity; the oldest evidence is from a late-5th-century AD ship mosaic at Kelenderis, Cilicia. It lasted well into the 20th century as a common sail on Arab dhows. The settee sail requires a shorter yard than does the lateen, and both settee and lateen have shorter masts than square-rigged sails. Model of a sambuk with two settee sails Settees (or ''saëtia'') then were a sharp-prowed, single-decked merchant sailing vessel found in the Mediterranean (more in the Levant than in the Western Mediterranean), in the 18th and 19th centuries. The Spaniards also used them in the New World. Settees had two lateen-rigged masts, like xebecs or galleys, but carrying settee sails. They sailed well to windward and could sail downwind. Some polaccas carried a settee sail, giving rise to the polacca-settee (or polac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Settee (sail)
The settee sail was a lateen sail with the front corner cut off, giving it a quadrilateral shape. It can be traced back to Greco-Roman navigation in the Mediterranean in late antiquity; the oldest evidence is from a late-5th-century AD ship mosaic at Kelenderis, Cilicia. It lasted well into the 20th century as a common sail on Arab dhows. The settee sail requires a shorter yard than does the lateen, and both settee and lateen have shorter masts than square-rigged sails. Model of a sambuk with two settee sails Settees (or ''saëtia'') then were a sharp-prowed, single-decked merchant sailing vessel found in the Mediterranean (more in the Levant than in the Western Mediterranean), in the 18th and 19th centuries. The Spaniards also used them in the New World. Settees had two lateen-rigged masts, like xebecs or galleys, but carrying settee sails. They sailed well to windward and could sail downwind. Some polaccas carried a settee sail, giving rise to the polacca-settee (or polac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yard (sailing)
A yard is a spar on a mast from which sails are set. It may be constructed of timber or steel or from more modern materials such as aluminium or carbon fibre. Although some types of fore and aft rigs have yards, the term is usually used to describe the horizontal spars used on square rigged sails. In addition, for some decades after square sails were generally dispensed with, some yards were retained for deploying wireless (radio) aerials and signal flags. Parts of the yard ; Bunt : The short section of the yard between the ''slings'' that attach it to the mast. ; Quarters : The port and starboard quarters form the bulk of the yard, extending from the slings to the fittings for the lifts and braces. ; Yardarms : The outermost tips of the yard: outboard from the attachments for the lifts. Note that these terms refer to stretches of the same spar, not to separate component parts. Controlling the yard The yard can rotate around the mast to allow the direction of the vesse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fore-and-aft
A fore-and-aft rig is a sailing vessel rigged mainly with sails set along the line of the keel, rather than perpendicular to it as on a square rigged vessel. Description Fore-and-aft rigged sails include staysails, Bermuda rigged sails, gaff rigged sails, gaff sails, gunter rig, lateen sails, lug sails, tanja sails, the spanker sail on a square rig and crab claw sails. Fore-and-aft rigs include: * Rigs with one mast: the proa, the catboat, the sloop, the cutter * Rigs with two masts: the ketch, the yawl * Rigs with two or more masts: the schooner Barques and barquentines are partially square rigged and partially fore-and-aft rigged. A rig which combines both on a foremast is known as a hermaphroditic rig. History Austronesia The fore-and-aft rig is believed to have been first developed independently by the Austronesian peoples some time around 1500 BC with the invention of the crab claw sail. It is suggested that it evolved from a more primitive "V"-shaped "square" s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rigging
Rigging comprises the system of ropes, cables and chains, which support a sailing ship or sail boat's masts—''standing rigging'', including shrouds and stays—and which adjust the position of the vessel's sails and spars to which they are attached—the ''running rigging'', including halyards, braces, sheets and vangs. Etymology According to the Encyclopædia Britannica Eleventh Edition "rigging" derives from Anglo-Saxon ''wrigan'' or ''wringing'', "to clothe". The same source points out that "rigging" a sailing vessel refers to putting all the components in place to allow it to function, including the masts, spars, sails and the rigging. Types of rigging Rigging is divided into two classes, '' standing'', which supports the mast (and bowsprit), and ''running'', which controls the orientation of the sails and their degree of reefing. Configurations differ for each type of rigging, between '' fore-and-aft rigged'' vessels and '' square-rigged'' vessels. Standing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belisarius
Belisarius (; el, Βελισάριος; The exact date of his birth is unknown. – 565) was a military commander of the Byzantine Empire under the emperor Justinian I. He was instrumental in the reconquest of much of the Mediterranean territory belonging to the former Western Roman Empire, which had been lost less than a century prior. One of the defining features of Belisarius' career was his success despite varying levels of available resources. His name is frequently given as one of the so-called " Last of the Romans". He conquered the Vandal Kingdom of North Africa in the Vandalic War in nine months and conquered much of Italy during the Gothic War. He also defeated the Vandal armies in the battle of Ad Decimum and played an important role at Tricamarum, compelling the Vandal king, Gelimer, to surrender. During the Gothic War, despite being significantly outnumbered, he and his troops recaptured the city of Rome and then held out against great odds during the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vandalic War
The Vandalic War was a conflict fought in North Africa between the forces of the Byzantine Empire and the Vandalic Kingdom of Carthage in 533–534. It was the first of Justinian I's wars of reconquest of the Western Roman Empire. The Vandals occupied Roman North Africa in the early 5th century, and established an independent kingdom there. Under their king, Geiseric, the Vandal navy carried out pirate attacks across the Mediterranean, sacked Rome and defeated a Roman invasion in 468. After Geiseric's death, relations with the Eastern Roman Empire normalized, although tensions flared up occasionally due to the Vandals' adherence to Arianism and their persecution of the Nicene native population. In 530, a palace coup in Carthage overthrew the pro-Roman Hilderic and replaced him with his cousin Gelimer. The Eastern Roman emperor Justinian took this as a pretext to intervene in Vandal affairs, and after securing the eastern frontier with Sassanid Persia in 532 he began preparing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iconography
Iconography, as a branch of art history, studies the identification, description and interpretation of the content of images: the subjects depicted, the particular compositions and details used to do so, and other elements that are distinct from artistic style. The word ''iconography'' comes from the Greek ("image") and ("to write" or ''to draw''). A secondary meaning (based on a non-standard translation of the Greek and Russian equivalent terms) is the production or study of the religious images, called "icons", in the Byzantine and Orthodox Christian tradition (see Icon). This usage is mostly found in works translated from languages such as Greek or Russian, with the correct term being "icon painting". In art history, "an iconography" may also mean a particular depiction of a subject in terms of the content of the image, such as the number of figures used, their placing and gestures. The term is also used in many academic fields other than art history, for example semioti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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