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HMS Medea (1833)
''HMS Medea'' was one of the initial steam-powered vessels built for the Royal Navy. On 10 January 1831 the new First Lord Sir James Graham, 2nd Baronet gave orders that four paddle vessels be built to competitive designs. The vessels were to be powered by Maudslay, Son & Field steam engines, carry a schooner rig and mount one or two 10-inch shell guns. Initially classed simply as a steam vessel (SV), she was re-classed as a second-class steam sloop when that categorization was introduced on 31 May 1844. Designed by Oliver Lang, the master shipwright of Woolwich. She was launched and completed in 1834, took part in the Syrian Coast Campaign and was broken up in 1867. ''Medea'' was the fifth named vessel (spelt Medea or Medee) since it was introduced for a 26-gun, sixth rate (''Medee'') captured from the French on 4 April 1744 by ''HMS Dreadnought'', sold in March 1745 to become the privateer ''Boscawen''. Design and specifications Her keel was laid in April 1832 at Woolwich D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Ensign Of The United Kingdom
The White Ensign, at one time called the St George's Ensign due to the simultaneous existence of a cross-less version of the flag, is an ensign worn on British Royal Navy ships and shore establishments. It consists of a red St George's Cross on a white field, identical to the flag of England except with the Union Flag in the upper canton. The White Ensign is also worn by yachts of members of the Royal Yacht Squadron and by ships of Trinity House escorting the reigning monarch. In addition to the United Kingdom, several other nations have variants of the White Ensign with their own national flags in the canton, with the St George's Cross sometimes being replaced by a naval badge omitting the cross altogether. Yachts of the Royal Irish Yacht Club wear a white ensign with an Irish tricolour in the first quadrant and defaced by the crowned harp from the Heraldic Badge of Ireland. The Flag of the British Antarctic Territory and the Commissioners' flag of the Northern Lighthouse Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woolwich Dockyard
Woolwich Dockyard (formally H.M. Dockyard, Woolwich, also known as The King's Yard, Woolwich) was an English Royal Navy Dockyard, naval dockyard along the river Thames at Woolwich in north-west Kent, where many ships were built from the early 16th century until the late 19th century. William Camden called it 'the Mother Dock of all England'. By virtue of the size and quantity of vessels built there, Woolwich Dockyard is described as having been 'among the most important shipyards of seventeenth-century Europe'. During the Age of Sail, the yard continued to be used for shipbuilding and repair work more or less consistently; in the 1830s a specialist factory within the dockyard oversaw the introduction of Steamship, steam power for ships of the Royal Navy. At its largest extent it filled a 56-acre site north of Woolwich Church Street, between Warspite Road and New Ferry Approach; 19th-century naval vessels were fast outgrowing the yard, however, and it eventually closed in 1869 (th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portsmouth
Portsmouth ( ) is a port and city in the ceremonial county of Hampshire in southern England. The city of Portsmouth has been a unitary authority since 1 April 1997 and is administered by Portsmouth City Council. Portsmouth is the most densely populated city in the United Kingdom, with a population last recorded at 208,100. Portsmouth is located south-west of London and south-east of Southampton. Portsmouth is mostly located on Portsea Island; the only English city not on the mainland of Great Britain. Portsea Island has the third highest population in the British Isles after the islands of Great Britain and Ireland. Portsmouth also forms part of the regional South Hampshire conurbation, which includes the city of Southampton and the boroughs of Eastleigh, Fareham, Gosport, Havant and Waterlooville. Portsmouth is one of the world's best known ports, its history can be traced to Roman times and has been a significant Royal Navy dockyard and base for centuries. Portsm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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'' encompassed all the unrated combat vessels, including the very small gun-brigs and cutters. In technical terms, even the more specialised bomb vessels and fireships were classed as sloops-of-war, and in practice these were employed in the sloop role when not carrying out their specialised functions. In World War I and World War II, the Royal Navy reused the term "sloop" for specialised convoy-defence vessels, including the of World War I and the highly successful of World War II, with anti-aircraft and anti-submarine capability. They performed similar duties to the American destroyer escort class ships, and also performed similar duties to the smaller corvettes of the Royal Navy. Rigging A sloop-of-war was quite different from a civilian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Builder's Old Measurement
Builder's Old Measurement (BOM, bm, OM, and o.m.) is the method used in England from approximately 1650 to 1849 for calculating the cargo capacity of a ship. It is a volumetric measurement of cubic capacity. It estimated the tonnage of a ship based on length and maximum beam (nautical), beam. It is expressed in "tons burden" ( en-em , burthen , enm , byrthen ), and abbreviated "tons bm". The formula is: : \text = \frac where: * ''Length'' is the length, in foot (length), feet, from the stem (ship), stem to the sternpost; * ''Beam (nautical), Beam'' is the maximum beam, in feet. The Builder's Old Measurement formula remained in effect until the advent of steam propulsion. Steamships required a different method of estimating tonnage, because the ratio of length to beam was larger and a significant volume of internal space was used for boilers and machinery. In 1849, the Moorsom System was created in the United Kingdom. The Moorsom system calculates the cargo-carrying capaci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nominal Horsepower
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the mechanical horsepower (or imperial horsepower), which is about 745.7 watts, and the metric horsepower, which is approximately 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. It was later expanded to include the output power of other types of piston engines, as well as turbines, electric motors and other machinery. The definition of the unit varied among geographical regions. Most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on 1 January 2010, the use of horsepower in the EU is permitted only as a supplementary unit. History The development of the steam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schooner
A schooner () is a type of sailing vessel defined by its rig: fore-and-aft rigged on all of two or more masts and, in the case of a two-masted schooner, the foremast generally being shorter than the mainmast. A common variant, the topsail schooner also has a square topsail on the foremast, to which may be added a topgallant. Differing definitions leave uncertain whether the addition of a fore course would make such a vessel a brigantine. Many schooners are gaff-rigged, but other examples include Bermuda rig and the staysail schooner. The origins of schooner rigged vessels is obscure, but there is good evidence of them from the early 17th century in paintings by Dutch marine artists. The name "schooner" first appeared in eastern North America in the early 1700s. The name may be related to a Scots word meaning to skip over water, or to skip stones. The schooner rig was used in vessels with a wide range of purposes. On a fast hull, good ability to windward was useful for priv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barquentine
A barquentine or schooner barque (alternatively "barkentine" or "schooner bark") is a sailing vessel with three or more masts; with a square rigged foremast and fore-and-aft rigged main, mizzen and any other masts. Modern barquentine sailing rig While a full-rigged ship is square-rigged on all three masts, and the barque is square-rigged except for the mizzen-mast, the barquentine extends the principle by making only the foremast square-rigged. The advantages of a smaller crew, good performance before the wind and the ability to sail relatively close to the wind while carrying plenty of cargo made it a popular rig at the end of the nineteenth century. Today, barquentines are popular with modern tall ship and sail training operators as their suite of mainly fore-and-aft sails improve non-downwind performance, while their foremast of square sails offers long distance downwind speed and dramatic appearance in port. Etymology The term "barquentine" is seventeenth century in ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sir James Graham, 2nd Baronet
Sir James Robert George Graham, 2nd Baronet (1 June 1792 – 25 October 1861) was a British statesman, who notably served as Home Secretary and First Lord of the Admiralty. He was the eldest son of Sir James Graham, 1st Baronet, by Lady Catherine, eldest daughter of the 7th Earl of Galloway. In 1819, he married Fanny Callander, youngest daughter of Sir James Campbell of Craigforth and Ardkinglas Castle. Sir James was created Doctor of Laws at the University of Cambridge in 1835, was Lord Rector of the University of Glasgow, 1840. He was First Lord of the Admiralty from 1830 to 1834 when he resigned on account of the government pressing for a reform of the Irish Church. He became Secretary of the Home Department from September 1841 to July 1846 and again First Lord of the Admiralty from December 1852 until February 1855. He was a member of the Council of the Duchy of Lancaster, and Deputy Lieutenant for county of Hertfordshire. He represented Kingston upon Hull from 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syrian Coast Campaign
Syrians ( ar, سُورِيُّون, ''Sūriyyīn'') are an Eastern Mediterranean ethnic group indigenous to the Levant. They share common Levantine Semitic roots. The cultural and linguistic heritage of the Syrian people is a blend of both indigenous elements and the foreign cultures that have come to inhabit the region of Syria over the course of thousands of years. The mother tongue of most Syrians is Levantine Arabic, which came to replace the former mother tongue, Aramaic, following the Muslim conquest of the Levant in the 7th century. The conquest led to the establishment of the Caliphate under successive Arab dynasties, who, during the period of the later Abbasid Caliphate, promoted the use of the Arabic language. A minority of Syrians have retained Aramaic which is still spoken in its Eastern and Western dialects. In 2018, the Syrian Arab Republic had an estimated population of 19.5 million, which includes, aside from the aforementioned majority, ethnic minorities such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Penn & Sons
John Penn and Sons was an English engineering company based in London, and mainly known for its marine steam engines. History Establishment In 1799, engineer and millwright John Penn (born in Taunton, Somerset, 1770; died 6 June 1843) started an agricultural engineering business on the site at the junction of Blackheath and Lewisham Roads (close to modern-day Deptford Bridge) in south-east London. It grew in two decades to be one of the major engineering works in the London area.Richard Hartree (epilogue by Prudence Penn), ''John Penn and Sons of Greenwich'', 2008, Landmark Publishing Ltd, The focus of the firm remained in agriculture until the 1830s and 1840s, when Penn's son, also John Penn, took over the company and it began to specialise in building marine steam engines. Marine steam Penn Jr was an inventor of engines. One of the earliest engines he produced was the grasshopper beam engine, a six horsepower version being the first steam engine to power the machinery at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hundredweight
The hundredweight (abbreviation: cwt), formerly also known as the centum weight or quintal, is a British imperial and US customary unit of weight or mass. Its value differs between the US and British imperial systems. The two values are distinguished in American English as the "short" and "long" hundredweight and in British English as the "cental" and the "imperial hundredweight". * The short hundredweight or cental of is used in the United States. * The long or imperial hundredweight of 8 stone or is defined in the imperial system. Under both conventions, there are 20 hundredweight in a ton, producing a " short ton" of 2,000 pounds and a " long ton" of 2,240 pounds. History The hundredweight has had many values. In England in around 1300, different "hundreds" (''centum'' in Medieval Latin) were defined. The Weights and Measures Act 1835 formally established the present imperial hundredweight of 112 lb. The United States and Canada came to use the ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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