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HMS Volage (1869)
HMS ''Volage'' was a built for the Royal Navy in the late 1860s. She spent most of her first commission assigned to the Flying Squadron circumnavigating the world and later carried a party of astronomers to the Kerguelen Islands to observe the transit of Venus in 1874. The ship was then assigned as the senior officer's ship in South American waters until she was transferred to the Training Squadron during the 1880s. ''Volage'' was paid off in 1899 and sold for scrap in 1904. Description ''Volage'' was long between perpendiculars and had a beam of . Forward the ship had a draught of , but aft she drew . ''Volage'' displaced and had a burthen of 2,322 tons. Her iron hull was covered by a layer of oak that was sheathed with copper from the waterline down to prevent biofouling.Lyon & Winfield, p. 265 Watertight transverse bulkheads subdivided the hull. Her crew consisted of 340 officers and ratings. The ship was nicknamed ''Vollidge'' by her crew. The ship had one 2-cylinder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thames Ironworks And Shipbuilding Company
The Thames Ironworks and Shipbuilding Company, Limited was a shipyard and iron works straddling the mouth of Bow Creek at its confluence with the River Thames, at Leamouth Wharf (often referred to as Blackwall) on the west side and at Canning Town on the east side. Its main activity was shipbuilding, but it also diversified into civil engineering, marine engines, cranes, electrical engineering and motor cars.Jim Lewis 1999, ''London's Lea Valley'', Phillimore, The company notably produced iron work for Isambard Kingdom Brunel's Royal Albert Bridge over the Tamar in the 1850s, and the world's first all-iron warship, HMS ''Warrior'', launched in 1860. History 1837–46 The company originated in 1837 as the Ditchburn and Mare Shipbuilding Company, founded by shipwright Thomas J. Ditchburn and the engineer and naval architect Charles John Mare. Originally located at Deptford, after a fire destroyed their yard the company moved to Orchard Place in 1838, between the East In ... [...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] |
Rifled Breech Loader
A rifled breech loader (RBL) is an artillery piece which, unlike the smoothbore cannon and rifled muzzle loader (RML) which preceded it, has rifling in the barrel and is loaded from the breech at the rear of the gun. The spin imparted by the gun's rifling gives projectiles directional stability and increased range. Loading from the rear of the gun leaves the crew less exposed to enemy fire, allows smaller gun emplacements or turrets, and allows a faster rate of fire. Overview The major problem to be solved with breechloading artillery was obturation: the sealing of the breech after firing to ensure that none of the gases generated by the burning of the propellant (initially gunpowder) escaped rearwards through the breech. This was both a safety issue and one of gun performance – all the propellant gas was needed to accelerate the projectile along the barrel. The second problem was speed of operation – how to close the breech before firing and open it after firing as quickly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BL 6 Inch 80 Pounder Gun
The BL 6-inch 80-pounder gun Mk I was the first generation of British 6-inch breechloading naval gun after it switched from muzzle-loaders in 1880. They were originally designed to use the old gunpowder propellants. Mk I 80-pounder Mk I of 80 cwt (4 tons) as originally built was an Elswick Ordnance design which was weakly made and fired only an projectile. It consisted of a steel barrel with wrought-iron coils shrunk over it. A few guns were issued to the Royal Navy but most were replaced by the later versions. Mk I guns remaining in British service were rebuilt with "chase hoops" added around the barrel for strengthening, and the barrel was shortened by 3 inches to keep its centre of gravity at the trunnions. This resulted in the 81 cwt Mk I gun.Treatise on Service Ordnance, 1893, pages 257–265 The breech was rotated to the left to lock it, unlike standard British service BL guns made by the Royal Gun Factory which all rotated to the right to lock. These guns are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chase Gun
A chase gun (or chaser), usually distinguished as bow chaser and stern chaser, was a cannon mounted in the bow (aiming forward) or stern (aiming backward) of a sailing ship. They were used to attempt to slow down an enemy ship either chasing (pursuing) or being chased, when the ship's broadside could not be brought to bear. Typically, the chasers were used to attempt to damage the rigging and thereby cause the target to lose performance. Bow chasers could be regular guns brought up from the gundeck and aimed through specially cut-out ports on either side of the bowsprit, or dedicated weapons made with an unusually long bore and a relatively light ball, and mounted in the bow. Stern chasers could also be improvised, or left permanently in the cabins at the stern, covered up and used as part of the furniture. Development In the Age of Sail, shiphandling had been brought to a high art, and chases frequently lasted for hours or sometimes days, as each crew fine-tuned their sail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poop Deck
In naval architecture, a poop deck is a deck that forms the roof of a cabin built in the rear, or " aft", part of the superstructure of a ship. The name originates from the French word for stern, ''la poupe'', from Latin ''puppis''. Thus the poop deck is technically a stern deck, which in sailing ships was usually elevated as the roof of the stern or "after" cabin, also known as the "poop cabin". On sailing ships, the helmsman would steer the craft from the quarterdeck, immediately in front of the poop deck. At the stern, the poop deck provides an elevated position ideal for observation. On modern, motorized warships, the ship functions which were once carried out on the poop deck have been moved to the bridge, usually located in a superstructure. See also *Common names for decks *Taffrail, the handrail around the poop deck *Quarter gallery, a projecting area at the stern *Puppis Puppis is a constellation in the southern sky. Puppis, the Latin translation of "poop deck ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forecastle
The forecastle ( ; contracted as fo'c'sle or fo'c's'le) is the upper deck of a sailing ship forward of the foremast, or, historically, the forward part of a ship with the sailors' living quarters. Related to the latter meaning is the phrase " before the mast" which denotes anything related to ordinary sailors, as opposed to a ship's officers. History and design In medieval shipbuilding, a ship of war was usually equipped with a tall, multi-deck castle-like structure in the bow of the ship. It served as a platform for archers to shoot down on enemy ships, or as a defensive stronghold if the ship were boarded. A similar but usually much larger structure, called the aftcastle, was at the aft end of the ship, often stretching all the way from the main mast to the stern. Having such tall upper works on the ship was detrimental to sailing performance. As cannons were introduced and gunfire replaced boarding as the primary means of naval combat during the 16th century, the medieval ... [...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] |
Funnel (ship)
A funnel is the smokestack or chimney on a ship used to expel boiler steam and smoke or engine exhaust. They are also commonly referred to as stacks. Purpose The primary purpose of a ship's funnel(s) is to lift the exhaust gases clear of the deck, in order not to foul the ship's structure or decks, and to avoid impairing the ability of the crew to carry out their duties. In steam ships the funnels also served to help induce a convection draught through the boilers. Design Since the introduction of steam-power to ships in the 19th century, the funnel has been a distinctive feature of the silhouette of a vessel, and used for recognition purposes. Funnel area The required funnel cross-sectional area is determined by the volume of exhaust gases produced by the propulsion plant. Often this area is too great for a single funnel. Early steam vessels needed multiple funnels ( had 5 when launched), but as efficiency increased new machinery needed fewer funnels. Merchant ships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Rig
A full-rigged ship or fully rigged ship is a sailing vessel's sail plan with three or more masts, all of them square-rigged. A full-rigged ship is said to have a ship rig or be ship-rigged. Such vessels also have each mast stepped in three segments: lower mast, top mast, and topgallant mast. Other large, multi-masted sailing vessels may be regarded as ships while lacking one of the elements of a full-rigged ship, e.g. having one or more masts support only a fore-and-aft sail or having a mast that only has two segments. Masts The masts of a full-rigged ship, from bow to stern, are: * Foremast, which is the second tallest mast * Mainmast, the tallest * Mizzenmast, the third tallest * Jiggermast, which may not be present but will be fourth tallest if so If the masts are of wood, each mast is in three or more pieces. They are (in order, from bottom up): * The lowest piece is called the ''mast'' or the ''lower''. * Topmast * Topgallant mast * Royal mast, if fitted On steel-mas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Penn (engineer)
John Penn (1805–1878) was an English marine engineer whose firm was pre-eminent in the middle of the 19th century due to his innovations in engine and propeller systems, which led his firm to be the major supplier to the Royal Navy as it made the transition from sail to steam power. He was also president of the Institution of Mechanical Engineers on two occasions. Early life John Penn was born in 1805 in Greenwich, the son of engineer and millwright John Penn (born in Taunton, Somerset, 1770; died 6 June 1843). The senior John Penn had in 1799 started an agricultural engineering business on the site at the junction of Blackheath and Lewisham Roads (close to modern-day Deptford Bridge). It grew in two decades to be one of the major engineering works in the London area. The focus of the firm was mainly in agriculture and more specifically mills for corn and flour. Although John Penn senior lived in Lewisham he stood as a reformist candidate for Greenwich in the December 1832 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trunk Engine
Trunk may refer to: Biology * Trunk (anatomy), synonym for torso * Trunk (botany), a tree's central superstructure * Trunk of corpus callosum, in neuroanatomy * Elephant trunk, the proboscis of an elephant Computing * Trunk (software), in revision control * Trunk line, a system of shared network access * VLAN A virtual local area network (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2).IEEE 802.1Q-2011, ''1.4 VLAN aims and benefits'' In this context, virtual, refers to a phys ..., which uses a trunk port Entertainment and media * ''Trunk'' (album), 2013 album by Ulf Lundell * '' The Trunk'', a 1961 British film * "The Trunk" (''The Twilight Zone''), a television episode * Trunk Records, a record label Physical containers * Trunk (car), a large storage compartment * Trunk (luggage) * Trunk (motorcycle), a storage compartment Other uses * Trunk (surname), a German-language surname * Trunk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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