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USS Yorktown (1888)
USS ''Yorktown'' was lead ship of her class of steel-hulled, twin-screw gunboats in the United States Navy in the late 19th and early 20th centuries. She was the second U.S. Navy ship named in honor of the American Revolutionary War's Battle of Yorktown. ''Yorktown'' was laid down by William Cramp & Sons of Philadelphia in May 1887 and launched in April 1888. She was just over long and abeam, and displaced . She was equipped with two steam engines which were supplemented with three schooner-rigged masts. The ship's main battery consisted of six guns and was augmented by an assortment of smaller-caliber guns. At launch, ''Yorktown'' joined the Squadron of Evolution of "New Navy" steel-hulled ships. Detached from that squadron, ''Yorktown'', under the command of Robley D. Evans, sailed to ValparaÃso, Chile, during the 1891 ''Baltimore'' Crisis and relieved at that port. After that situation was resolved, ''Yorktown'' took part in the joint British–American sealing pat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Yorktown (PG-1), Side View 1
USS ''Yorktown'' may refer to the following ships of the United States Navy: * , a 16-gun sloop-of-war In the 18th century and most of the 19th, a sloop-of-war in the Royal Navy was a warship with a single gun deck that carried up to eighteen guns. The rating system covered all vessels with 20 guns and above; thus, the term ''sloop-of-war'' enc ... commissioned in 1840 (sunk in 1850) * , the lead commissioned in 1889 (sold in 1921) * , the lead commissioned in 1937 (sunk in 1942) * , an commissioned in 1943 (museum ship since 1975) * , a commissioned in 1984 (awaiting scrapping) {{DEFAULTSORT:Yorktown, Uss United States Navy ship names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yorktown Class Gunboat
The ''Yorktown'' class was a class of three steel-hulled, twin-screw gunboats built for the United States Navy beginning in 1887. All three ships of the class were named after cities near American Revolutionary War battles. The ships were just over long and abeam and displaced a little more than . They were equipped with two steam engines which were supplemented with three schooner-rigged masts. The main battery of each ship consisted of six guns and was augmented by an assortment of smaller caliber guns. Ships of the class were in commission between 1889 and 1919. For most of their service, the ships were in the Pacific, patrolling the coasts of North and South America, Hawaii, and the western Pacific. ''Yorktown''-class ships saw service in many of the conflicts involving the United States from the 1890s through World War I, with all three ships seeing action during the Philippine–American War. was involved in the 1891 ''Baltimore'' Crisis in Chile, participated in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robley D
Robley may refer to: People Given name *Robley Dunglison (1798–1869), English physician *Robley D. Evans (admiral) (1846–1912), United States Navy rear admiral * Robley D. Evans (physicist) (1907–1995), American physicist * Robley Rex (1901–2009), World War II-era veteran * Robley S. Rigdon, retired Georgia Army National Guard brigadier general * Robley C. Williams (1908–1995), American biologist and virologist * Robley Wilson (1930–2018), American poet, writer, and editor Middle name * Charles Robley Evans (1866–1954), American politician * Geoffrey Robley Sayer (1887–1962), British civil servant and historian Surname *Horatio Gordon Robley (1840–1930), British soldier, artist, and collector of the macabre Other *Robley, Virginia Robley (also Issabel, Marvin, or Point Isabel) is an unincorporated community in southeastern Richmond County, Virginia, United States. It lies along State Route 3 southeast of the town of Warsaw, the county seat of Richmond County. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Navy
The history of the United States Navy divides into two major periods: the "Old Navy", a small but respected force of sailing ships that was notable for innovation in the use of ironclads during the American Civil War, and the "New Navy" the result of a modernization effort that began in the 1880s and made it the largest in the world by 1943. The United States Navy claims October 13, 1775 as the date of its official establishment, when the Second Continental Congress passed a resolution creating the Continental Navy. With the end of the American Revolutionary War, the Continental Navy was disbanded. Under the Presidency of John Adams, merchant shipping came under threat while in the Mediterranean by Barbary pirates from four North African States. This led to the Naval Act of 1794, which created a permanent standing U.S. Navy. The original six frigates were authorized as part of the Act. Over the next 20 years, the Navy fought the French Republic Navy in the Quasi-War (1798†... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squadron Of Evolution
The Squadron of Evolution—sometimes referred to as the "White Squadron"— was a transitional unit in the United States Navy during the late 19th century. It was probably inspired by the French "Escadre d'évolution" of the 18th and 19th centuries. The squadron was composed of the protected cruisers , , , and dispatch boats and . ''Yorktown''′s sister ships and joined the squadron in 1891. Rear Admiral John G. Walker served as its Commander with ''Chicago'' as his flagship. Walker was a proponent of the relatively new practice of concentrating ships into formations controlled by a single commander, and used his position to carry out exercises in squadron tactics, ship-to-ship signalling, and landing operations. Having both full rigged masts and steam engines, the White Squadron was also influential in the beginning of steel shipbuilding in the United States. Following a period of sea trials in the fall of 1889, the squadron was first set underway from New York on Novembe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery Battery
In military organizations, an artillery battery is a unit or multiple systems of artillery, mortar systems, rocket artillery, multiple rocket launchers, surface-to-surface missiles, ballistic missiles, cruise missiles, etc., so grouped to facilitate better battlefield communication and command and control, as well as to provide dispersion for its constituent gunnery crews and their systems. The term is also used in a naval context to describe groups of guns on warships. Land usage Historically the term "battery" referred to a cluster of cannon in action as a group, either in a temporary field position during a battle or at the siege of a fortress or a city. Such batteries could be a mixture of cannon, howitzer, or mortar types. A siege could involve many batteries at different sites around the besieged place. The term also came to be used for a group of cannon in a fixed fortification, for coastal or frontier defence. During the 18th century "battery" began to be used as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mast (ship)
The mast of a sailing vessel is a tall spar, or arrangement of spars, erected more or less vertically on the centre-line of a ship or boat. Its purposes include carrying sails, spars, and derricks, and giving necessary height to a navigation light, look-out position, signal yard, control position, radio aerial or signal lamp. Large ships have several masts, with the size and configuration depending on the style of ship. Nearly all sailing masts are guyed. Until the mid-19th century, all vessels' masts were made of wood formed from a single or several pieces of timber which typically consisted of the trunk of a conifer tree. From the 16th century, vessels were often built of a size requiring masts taller and thicker than could be made from single tree trunks. On these larger vessels, to achieve the required height, the masts were built from up to four sections (also called masts). From lowest to highest, these were called: lower, top, topgallant, and royal masts. Giving the lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed, by a connecting rod and crank, into rotational force for work. The term "steam engine" is generally applied only to reciprocating engines as just described, not to the steam turbine. Steam engines are external combustion engines, where the working fluid is separated from the combustion products. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In general usage, the term ''steam engine'' can refer to either complete steam plants (including boilers etc.), such as railway steam locomotives and portable engines, or may refer to the piston or turbine machinery alone, as in the beam engine and stationary steam engine. Although steam-driven devices were known as early as the aeolipile in the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displace (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p.5. This is accomplished by means of its "draft marks" (or "load lines"). A merc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam (nautical)
The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer extremities of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water. Generally speaking, the wider the beam of a ship (or boat), the more initial stability it has, at the expense of secondary stability in the event of a capsize, where more energy is required to right the vessel from its inverted position. A ship that heels on her ''beam ends'' has her deck beams nearly vertical. Typical values Typical length-to-beam ratios ( aspect ratios) for small sailboats are from 2:1 (dinghies to trailerable sailboats around ) to 5:1 (racing sailboats over ). Large ships have widely varying beam ratios, some as large as 20:1. Rowing shells designed for flatwater racing may have length to beam ratios as high as 30:1, while a cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Launch (ship)
Ceremonial ship launching involves the performance of ceremonies associated with the process of transferring a vessel to the water. It is a nautical tradition in many cultures, dating back thousands of years, to accompany the physical process with ceremonies which have been observed as public celebration and a solemn blessing, usually but not always, in association with the launch itself. Ship launching imposes stresses on the ship not met during normal operation and, in addition to the size and weight of the vessel, represents a considerable engineering challenge as well as a public spectacle. The process also involves many traditions intended to invite good luck, such as christening by breaking a sacrificial bottle of champagne over the bow as the ship is named aloud and launched. Methods There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching". The oldest, most familiar, and most widely used is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel Laying
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. Keel laying is one of the four specially celebrated events in the life of a ship; the others are launching, commissioning and decommissioning. In earlier times, the event recognized as the keel laying was the initial placement of the central timber making up the backbone of a vessel, called the keel. As steel ships replaced wooden ones, the central timber gave way to a central steel beam. Modern ships are most commonly built in a series of pre-fabricated, complete hull sections rather than around a single keel. The event recognized as the keel laying is the first joining of modular components, or the lowering of the first module into place in the building dock. It is now often called "keel authentication", and is the ceremonial beginning of the ship's life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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