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Alecto (SPG)
The Alecto, initially known as the Harry Hopkins Mk 1 CS, was a self propelled gun developed by the British during World War II. Development In 1942 a project for a 3.75 inch (95 mm) howitzer was started. Two guns were made, and one of these was chosen for test mounting on a Light Tank Mk VIII The Tank, Light, Mk VIII (A25), also known as the Harry Hopkins, after American President Roosevelt's chief diplomatic advisor, was a British light tank produced by Vickers-Armstrong during the Second World War. The Mk VIII was the last in the l ... "Harry Hopkins" chassis. Like the Harry Hopkins, the Alecto had skid steering, which operated by bowing the tracks through lateral movements of the central road wheels. The gun was mounted in an open-topped structure. The first trials were not started until late in 1944. The trials uncovered various problems but by the time these were solved the war in Europe was over. With little perceived potential for use in the war against J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers
Vickers was a British engineering company that existed from 1828 until 1999. It was formed in Sheffield as a steel foundry by Edward Vickers and his father-in-law, and soon became famous for casting church bells. The company went public in 1867, acquired more businesses, and began branching out into military hardware and shipbuilding. In 1911, the company expanded into aircraft manufacturer, aircraft manufacture and opened a flying school. They expanded even further into electrical and railway manufacturing, and in 1928 acquired an interest in the Supermarine. Beginning in the 1960s, various parts of the company were nationalised, and in 1999 the rest of the company was acquired by Rolls-Royce Holdings, Rolls-Royce plc, who sold the defence arm to Alvis plc. The Vickers name lived on in Alvis Vickers, until the latter was acquired by BAE Systems in 2004 to form BAE Systems Platforms & Services, BAE Systems Land Systems. History Early history Vickers was formed in Sheffield ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance QF 25 Pounder
The Ordnance QF 25-pounder, or more simply 25-pounder or 25-pdr, was the major British field gun and howitzer during the Second World War. Its calibre is 3.45-inch (87.6 mm). It was introduced into service just before the war started, combining both high-angle and direct-fire abilities, a relatively high rate of fire, and a reasonably lethal shell in a highly mobile piece. It remained the British Army's primary artillery field piece well into the 1960s, with smaller numbers serving in training units until the 1980s. Many Commonwealth of Nations countries used theirs in active or reserve service until about the 1970s and ammunition for the weapon is currently being produced by Pakistan Ordnance Factories. Initial production was slow, but by 1945, over 12,000 had been manufactured. The 25-pounder was probably the most outstanding field artillery piece used by British and Commonwealth forces in the Second World War, being durable, easy to operate and versatile. Design The desig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-propelled Artillery Of The United Kingdom , a model for studying the motion of swarms
{{Disambiguation ...
Self-propelled may refer to * Human-powered transport, humans moving themselves (and their cargo) via their own muscle energy * Machines that power their own movement: ** Automobile (from ''auto-'' + ''mobile'', "self-moving") ** Locomotive (from ''loco-'' + ''motive'', "moving from its current place") ** Multiple units, self-propelled train carriages ** Self-propelled artillery *** Self-propelled gun *** Self-propelled anti-aircraft weapon *** Tank destroyer, a self-propelled anti-tank gun *** Mortar carrier, a self-propelled mortar ** Self-propelled modular transporter ** Leonardo's self-propelled cart ** Self-propelled barge T-36 * Self-propelled particles Self-propelled particles (SPP), also referred to as self-driven particles, are terms used by physicists to describe autonomous agents, which convert energy from the environment into directed or persistent motion. Natural systems which have insp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valentine Archer
The Self Propelled 17pdr, Valentine, Mk I, Archer was a British tank destroyer of the Second World War based on the Valentine infantry tank chassis fitted with an Ordnance QF 17 pounder gun. Designed and manufactured by Vickers-Armstrongs, 655 were produced between March 1943 and May 1945. It was used in north-west Europe and Italy during the war; post-war, it served with the Egyptian Army. This vehicle was unusual in that its gun faced the rear of the chassis instead of the front. Design and development The 17 pounder anti-tank gun was very powerful but also very large and heavy and could be moved about the battlefield only by a vehicle, which made the gun more effective in defence than in the attack. A variant of the Churchill tank had been built in 1942 as a self-propelled gun - the "3-inch Gun Carrier" - and the US was expected to be able to provide the 76 mm armed M10 tank destroyer through Lend-lease. Other projects were considered using obsolete tank chassis, inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cruiser Mk VIII Challenger
The Tank, Cruiser, Challenger (A30) was a British tank of World War II. It mounted the QF 17-pounder anti-tank gun on a chassis derived from the Cromwell tank to add anti-tank firepower to the cruiser tank units. The design compromises made in fitting the large gun onto the Cromwell chassis resulted in a tank with a powerful weapon and reduced armour. The extemporised 17-pounder Sherman Firefly conversion of the US-supplied Sherman was easier to produce and, with delays in production, only 200 Challengers were built. The Challenger was able to keep up with the fast Cromwell tank and was used with them. History The driving force in the development of the Challenger was William Arthur Robotham. "Roy" Robotham had been a Rolls-Royce executive in the car division who, with no work to do, had led a team to develop a tank powerplant from the Rolls-Royce Merlin aircraft engine. The Rolls-Royce Meteor gave the British a powerful, reliable engine, which was used in the A27M Cruiser M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrarch Tank
The Light Tank Mk VII (A17), also known as the Tetrarch, was a British light tank produced by Vickers-Armstrongs in the late 1930s and used during the Second World War. The Tetrarch was the latest in the line of light tanks built by the company for the British Army. It improved upon its predecessor, the Light Tank Mk VIC, by introducing the extra firepower of a 2-pounder gun. The War Office ordered 70 tanks, an order that eventually increased to 220. Production was delayed by several factors and only 100 to 177 of the tanks were produced.Tucker (p. 90) states that 177 of the Mk VIIs were built during the war, but Flint (p. 12) states that whilst this figure is given in most published sources, surviving War Office documentation gives a lower figure of 100, putting the final tally somewhere between these two figures. The design flaws of the tank, combined with the decision by the War Office not to use light tanks in British armoured divisions, ruled out the use of Tetrarchs in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance QF 32-pounder
The Ordnance QF 32 pounder or (32-pdr) was a British 94 mm gun, initially developed as a replacement for the Ordnance QF 17-pdr anti-tank gun. The only use of the 32-pounder was as the armament for the pilot vehicles of the Tortoise heavy assault tank. Development Development started in October 1942, due to a General Staff order for a successor to the 17-pdr gun. Basic requirements involved the new gun to be "at least 25% more effective" than the 17-pdr. Initial focus was on development of a 55-pdr gun, although advancements in 17-pdr ammunition meant the advantages that would be secured by the 55-pdr were no longer as desirable, while the 55-pdr would suffer from considerable disadvantages such as the difficulties in the handling and stowage of ammunition. Other options considered included a 76 mm (3-inch) 17-pdr firing a Armour Piercing Composite Rigid (APCR) shot at a muzzle velocity of a 3-inch tapered to 2.25-inch (76 to 57 mm) "squeeze bore" firing a Armour- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance QF 6 Pounder
The Ordnance Quick-Firing 6-pounder 7 cwt,British forces traditionally denoted smaller ordnance by the weight of its standard projectile, in this case approximately . The approximate weight of the gun barrel and breech, "7 cwt" (cwt = hundredweight), was included in the designation to distinguish this gun from others also firing a 6 lb projectile. or just 6-pounder, was a British 57 mm gun, serving during the Second World War as a primary anti-tank gun of both the British and United States Army (as the 57 mm Gun M1). It was also used as the main armament for a number of armoured fighting vehicles. Although designed before the start of the war, it did not reach service until the North African Campaign in April 1942. There, it replaced the 2-pounder as an anti-tank gun, allowing the 25-pounder gun-howitzer to revert to its intended artillery role. Development and production Development Limitations of the existing 2-pounders were apparent even as the gun entered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers Machine Gun
The Vickers machine gun or Vickers gun is a Water cooling, water-cooled .303 British (7.7 mm) machine gun produced by Vickers Limited, originally for the British Army. The gun was operated by a three-man crew but typically required more men to move and operate it: one fired, one fed the ammunition, the others helped to carry the weapon, its ammunition, and spare parts. It was in service from before the First World War until the 1960s, with air-cooled versions of it on many Allies of World War I, Allied World War I fighter aircraft. The weapon had a reputation for great solidity and reliability. Ian V. Hogg, in ''Weapons & War Machines'', describes an action that took place in August 1916, during which the British 100th Company of the Machine Gun Corps fired their ten Vickers guns to deliver sustained fire for twelve hours. Using 100 barrels, they fired a million rounds without breakdowns. "It was this absolute foolproof reliability which endeared the Vickers to every Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1st King's Dragoon Guards
The 1st King's Dragoon Guards was a cavalry regiment in the British Army. The regiment was raised by Sir John Lanier in 1685 as the 2nd Queen's Regiment of Horse, named in honour of Queen Mary, consort of King James II. It was renamed the 2nd King's Own Regiment of Horse in 1714 in honour of George I. The regiment attained the title 1st King's Dragoon Guards in 1751. The regiment served as horse cavalry until 1937 when it was mechanised with light tanks. The regiment became part of the Royal Armoured Corps in 1939. After service in the First World War and the Second World War, the regiment amalgamated with the 2nd Dragoon Guards (Queen's Bays) in 1959 to form the 1st The Queen's Dragoon Guards. History Early history The regiment was raised by Sir John Lanier in 1685 as Lanier's Regiment of Horse or the 2nd Queen's Regiment of Horse, named in honour of Queen Mary, consort of King James II, as part of the response to the Monmouth Rebellion. The regiment saw action at the Battle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific War
The Pacific War, sometimes called the Asia–Pacific War, was the theater of World War II that was fought in Asia, the Pacific Ocean, the Indian Ocean, and Oceania. It was geographically the largest theater of the war, including the vast Pacific Ocean theater, the South West Pacific theater, the Second Sino-Japanese War, and the Soviet–Japanese War. The Second Sino-Japanese War between the Empire of Japan and the Republic of China had been in progress since 7 July 1937, with hostilities dating back as far as 19 September 1931 with the Japanese invasion of Manchuria. However, it is more widely accepted that the Pacific War itself began on 7 December (8 December Japanese time) 1941, when the Japanese simultaneously invaded Thailand, attacked the British colonies of Malaya, Singapore, and Hong Kong as well as the United States military and naval bases in Hawaii, Wake Island, Guam, and the Philippines. The Pacific War saw the Allies pitted against Japan, the latter ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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