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Hilsea Lines
The Hilsea Lines are a line of 18th- and 19th-century fortifications built at Hilsea to protect the northern approach to Portsea Island, an island off the southern coast of England which forms the majority of the city of Portsmouth and its key naval base. They are now used as a greenspace and leisure area, also known locally as ''Foxes Forest''. Natural defences The island is separated from the mainland by a narrow stretch of water called Portsbridge Creek. The first means of crossing the creek was by stepping stones, followed by a single track bridge, built to allow the passage of pedestrians and horse-drawn carts to have access to Portsea Island. Early defences Early defences were focused on the 'Portsbridge' that crossed the creek. A fortification is thought to have been built at the mainland end of the bridge during the reign of King Henry VIII. In 1642 the fort was captured by parliamentary forces as part of the English Civil War. It was rebuilt in 1688 and again in 1746. D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hilsea Lines Westion Bastion2009
Hilsea is a district of the city of Portsmouth in the English county of Hampshire. Hilsea is home to one of Portsmouth's main sports and leisure facilities – the Mountbatten centre. Trafalgar School, Portsmouth, Trafalgar School (formerly the City of Portsmouth Boys' School) is also in Hilsea. It is also the home of Portsmouth rugby football club Located at the Northern end of Portsea Island, for most of its history, Hilsea was a small hamlet on the Portsmouth to London road. The name "Hilsea" probably means 'holly island'. The boundaries of Portsmouth were not extended to encompass the hamlet until 1832. The last working farm in Portsmouth, Green Farm, was located in the area up to the 1990s. This area is now a residential estate and is marked by a pub and hotel, still known locally as the Green Farm, although its external sign bears only the name of the Toby Carvery chain which now owns it. Construction of Hilsea Barracks started in 1780. Over the decades, they underwent vario ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portsdown Hill
Portsdown Hill is a long chalk ridge in Hampshire, England. The highest point of the hill lies within Fort Southwick at 131m above sea level. The ridge offers good views to the south over Portsmouth, the Solent, Hayling Island and Gosport, with the Isle of Wight beyond. The hill is on the mainland, just to the north of Ports Creek, which separates the mainland from Portsea Island, on which lies the main part of the city of Portsmouth, one of the United Kingdom's main naval bases. To the north lies the Forest of Bere, with the South Downs visible in the distance. Butser Hill can be seen on a clear day. The hill is formed from an inlier of chalk which has been brought to the surface by an east–west upfold of the local strata known as the Portsdown Anticline. Southwick House is close by the north side of the hill, the HQ for U.S. General Dwight D. Eisenhower during the D-Day invasions; the generals prayed together before D-Day at Christ Church Portsdown, on the hill, which has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scheduled Ancient Monument
In the United Kingdom, a scheduled monument is a nationally important archaeological site or historic building, given protection against unauthorised change. The various pieces of legislation that legally protect heritage assets from damage and destruction are grouped under the term "designation." The protection provided to scheduled monuments is given under the Ancient Monuments and Archaeological Areas Act 1979, which is a different law from that used for listed buildings (which fall within the town and country planning system). A heritage asset is a part of the historic environment that is valued because of its historic, archaeological, architectural or artistic interest. Only some of these are judged to be important enough to have extra legal protection through designation. There are about 20,000 scheduled monuments in England representing about 37,000 heritage assets. Of the tens of thousands of scheduled monuments in the UK, most are inconspicuous archaeological sites, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hilsea Bastion Gardens
Hilsea is a district of the city of Portsmouth in the English county of Hampshire. Hilsea is home to one of Portsmouth's main sports and leisure facilities – the Mountbatten centre. Trafalgar School (formerly the City of Portsmouth Boys' School) is also in Hilsea. It is also the home of Portsmouth rugby football club Located at the Northern end of Portsea Island, for most of its history, Hilsea was a small hamlet on the Portsmouth to London road. The name "Hilsea" probably means 'holly island'. The boundaries of Portsmouth were not extended to encompass the hamlet until 1832. The last working farm in Portsmouth, Green Farm, was located in the area up to the 1990s. This area is now a residential estate and is marked by a pub and hotel, still known locally as the Green Farm, although its external sign bears only the name of the Toby Carvery chain which now owns it. Construction of Hilsea Barracks started in 1780. Over the decades, they underwent various rebuildings and changes o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hilsea Lines Path
Hilsea is a district of the city of Portsmouth in the English county of Hampshire. Hilsea is home to one of Portsmouth's main sports and leisure facilities – the Mountbatten centre. Trafalgar School (formerly the City of Portsmouth Boys' School) is also in Hilsea. It is also the home of Portsmouth rugby football club Located at the Northern end of Portsea Island, for most of its history, Hilsea was a small hamlet on the Portsmouth to London road. The name "Hilsea" probably means 'holly island'. The boundaries of Portsmouth were not extended to encompass the hamlet until 1832. The last working farm in Portsmouth, Green Farm, was located in the area up to the 1990s. This area is now a residential estate and is marked by a pub and hotel, still known locally as the Green Farm, although its external sign bears only the name of the Toby Carvery chain which now owns it. Construction of Hilsea Barracks started in 1780. Over the decades, they underwent various rebuildings and changes o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portsmouth Airport, Hampshire
Portsmouth Airport, also known as Portsmouth City Airport, PWA (Portsmouth Worldwide Airport) and Hilsea Airport, was situated at the northeast Hilsea corner of Portsea Island on the south coast of England and was one of the last remaining commercial grass runway airports in the United Kingdom. Location Sandwiched between Hilsea railway station and the waters of Langstone Harbour, the airport offered little scope for expansion and, following some accidents with larger aircraft in the 1960s, the airport's last official flight took place on 31 December 1973 and was closed. Construction and opening The airport was constructed during 1931 and early 1932 as Portsmouth's municipal airport. The airfield's name "Portsmouth" was marked in stone next to a large circle in the centre of the landing area. An opening display was held for the public on 2 July 1932 with an Armstrong Whitworth Argosy airliner and other civil and military aircraft being present.Marriott, 1993, p. 101. The air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Former Hilsea Lagoon
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with pronouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of pronoun ''thee'') when followed by a v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QF 6 Pounder Hotchkiss
The Ordnance QF Hotchkiss 6 pounder gun Mk I and Mk II or QF 6 pounder 8 cwt were a family of long-lived light naval guns introduced in 1885 to defend against new, small and fast vessels such as torpedo boats and later submarines. There were many variants produced, often under license which ranged in length from 40 to 58 calibers, but 40 caliber was the most common version. 6-pounders were widely used by the navies of a number of nations and often used by both sides in a conflict. Due to advances in torpedo delivery and performance, 6-pounder guns were rapidly made obsolete and were replaced with larger guns aboard most larger warships. This led to their being used ashore during World War I as coastal defense guns, the first tank guns and as anti-aircraft guns, whether on improvised or specialized HA/LA mounts. During World War II 6-pounder guns were put back in service to arm small warships and as coastal defense guns. The last ships to carry 6-pounders were the Aegir-cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disappearing Gun
A disappearing gun, a gun mounted on a ''disappearing carriage'', is an obsolete type of artillery which enabled a gun to hide from direct fire and observation. The overwhelming majority of carriage designs enabled the gun to rotate backwards and down behind a parapet, or into a pit protected by a wall, after it was fired; a small number were simply barbette mounts on a retractable platform. Either way, retraction lowered the gun from view and direct fire by the enemy while it was being reloaded. It also made reloading easier, since it lowered the breech to a level just above the loading platform, and shells could be rolled right up to the open breech for loading and ramming. Other benefits over non-disappearing types were a higher rate of repetitive fire and less fatigue for the gun crew. Some disappearing carriages were complicated mechanisms, protection from aircraft observation and attack was difficult, and almost all restricted the elevation of the gun. With a few ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RBL 7 Inch Armstrong Gun
The Armstrong RBL 7-inch gun, also known as the 110-pounder, was an early attempt to use William Armstrong's new and innovative rifled breechloading mechanism for heavy rifled guns. Description The Armstrong "screw" breech mechanism used a heavy block inserted in a vertical slot in the barrel behind the chamber, with a large hollow screw behind it which was manually screwed tight against the block after loading. A metal cup on the front of the block, together with the pressure of the screw behind it, provided "obturation" and sealed the breech to prevent escape of gasses rearward on firing. The sliding-block was known as the "vent-piece", as the vent tube was inserted through it to fire the gun. In modern terms it was a vertical sliding-block. To load the gun, the vent-piece was raised, the shell was inserted through the hollow screw and rammed home into the bore, and the powder cartridge was likewise inserted through the screw into the chamber. The vent-piece was lowered, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RML 7 Inch Gun
The RML 7-inch guns were various designs of medium-sized rifled muzzle-loading guns used to arm small to medium-sized British warships in the late 19th century, and some were used ashore for coast defence. Design and history These guns were the first to incorporate the new "Woolwich" rifling system, a modification of the French system, of from 3 – 9 broad shallow grooves after Britain abandoned the Armstrong "shunt" rifling system in May 1865 : "...M.L. 7-inch guns in course of manufacture were rifled on this principle, upon which all of our heavy pieces since have been rifled. The 7-inch referred to, and introduced into the service in 1865, were the first of the so-called Woolwich guns, which then meant "''wrought iron M.L. guns built up on Sir W. Armstrong's principle, improved upon by hooking the coils over one another, and having solid ended steel barrels, rifled on the system shown above, for studded projectiles''". All versions were constructed of a steel A tube surrou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smoothbore
A smoothbore weapon is one that has a barrel without rifling. Smoothbores range from handheld firearms to powerful tank guns and large artillery mortars. History Early firearms had smoothly bored barrels that fired projectiles without significant spin. To minimize inaccuracy-inducing tumbling during flight, their projectiles required an aerodynamically uniform shape, such as a sphere. However, surface imperfections on the projectile and/or the barrel will cause even a sphere to rotate randomly during flight, and the Magnus effect will curve it off the intended trajectory when spinning on any axis not parallel to the direction of travel. Rifling the bore surface with spiral grooves or polygonal valleys imparts a stabilizing gyroscopic spin to a projectile that prevents tumbling in flight. Not only does this more than counter Magnus-induced drift, but it allows a longer, more streamlined round with greater sectional density to be fired from the same caliber barrel, improvin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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