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Vickers MBT
The Vickers MBT is a series of main battle tanks (MBTs) developed as a private venture by British company Vickers-Armstrongs for export. The design makes use of proven components, such as the L7 gun of the Centurion tank, Centurion, the Leyland L60 multi-fuel engine, the transmission and fire control system of the Chieftain tank, Chieftain. A variant was built under licence in India as the Vijayanta, and served with the Indian Army. Design and development The Vickers MBT followed on from a 24-tonne Ordnance QF 20-pounder, 20-pdr gunned tank design intended for export.Ogorkiewicz, R M (1973). ''Vickers Battle Tank'', Profile Publications, August 1973. This would be as well equipped as a Centurion tank, Centurion but substantially cheaper and with eight Vickers Vigilant anti-tank missiles it would be as effective. However, with the introduction of the Royal Ordnance L7, 105 mm L7 gun into the British, US and German tank designs, this light tank would have been less powerful wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main Battle Tank
A main battle tank (MBT), also known as a battle tank or universal tank or simply tank,Ogorkiewicz 2018 p222 is a tank that fills the role of armour-protected direct fire and maneuver in many modern armies. Cold War-era development of more powerful engines, better suspension systems and lighter composite armour allowed for the design of a tank that had the firepower of a super-heavy tank, the armour protection of a heavy tank, and the mobility of a light tank, in a package with the weight of a medium tank. The first ''designated'' MBT was the British Chieftain (tank), Chieftain tank, which during its development in the 1950s was re-designed as an MBT. Throughout the 1960s and 1970s, the MBT replaced almost all other types of tanks, leaving only some specialist roles to be filled by lighter designs or other types of armoured fighting vehicles. Main battle tanks are a key component of modern armies.Main battle tank#House1984, House (1984), ''Toward Combined Arms Warfare: A Surve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chieftain Tank
The FV4201 Chieftain was the primary main battle tank (MBT) of the United Kingdom from the 1960s into 1990s. Introduced in 1967, it was among the most heavily armed MBTs at the time, mounting a 120 mm Royal Ordnance L11 gun, equivalent to the much larger specialist heavy tanks in service. It was also among the most heavily armoured, with up to that was highly sloped to offer thickness along the line of sight. A development from the Centurion tank, Centurion MBT, the Chieftain introduced the supine (reclining) driver position to British design allowing a heavily sloped hull with reduced height. A new powerpack and improved transmission gave it higher speed than the Centurion despite being heavier due to major upgrades to armour protection and the armament; this allowed it to replace both the Centurion and Conqueror (tank), Conqueror heavy tank while performing their roles effectively. The multi-fuel engine proved to be the design's primary drawback leading to break downs; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swingfire
Swingfire was a British wire-guided anti-tank missile developed in the 1960s and produced from 1966 until 1993. The name refers to its ability to make a rapid turn of up to ninety degrees after firing to bring it onto the line of the sighting mechanism. This means that the launcher vehicle could be concealed and the operator, using a portable sight, placed at a distance in a more advantageous firing position. Swingfire entered operational service in 1969 and underwent several major upgrades during its time in service. It was used on a number of vehicles including the FV438, FV102 and several truck mountings including the Land Rover and Ferret armoured car. Concepts adapting it to helicopters, tanks and even hovercraft went nowhere. Swingfire remained in service on the FV102 Striker until 2005 when they were retired in favour of man-portable missiles. Development Earlier efforts The British Army was among the first to introduce a heavy anti-tank missile when they introduce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since 2023; and, since its independence in 1947, the world's most populous democracy. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is near Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand, Myanmar, and Indonesia. Modern humans arrived on the Indian subcontinent from Africa no later than 55,000 years ago., "Y-Chromosome and Mt-DNA data support the colonization of South Asia by modern humans originating in Africa. ... Coalescence dates for most non-European populations averag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detroit Diesel Series 71
The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel. The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of . Inline models included one, two, three, four and six cylinders, and the V-types six, eight, 12, 16, and 24 cylinders. The two largest V units used multiple cylinder heads per bank to keep the head size and weight to manageable proportions, the V-16 using four heads from the four-cylinder inline model, and the V-24 using four heads from the inline six-cylinder model. This feature also assisted in reducing the overall cost of these large engines by maintaining parts commonality with the smaller models. History The inline six-cylinder 71 series engine was introduced as the initial flagship product of the Detroit Diesel Engine Division of General Motors in 1938. This engine was in high demand during WWII, necessitating a dramatic incr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valve Amplifier
A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a Signal (information theory), signal. Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by Solid state (electronics), solid state amplifiers in the 1960s and 1970s. Valve amplifiers can be used for applications such as guitar amplifiers, satellite transponders such as DirecTV and GPS, high quality stereo amplifiers, military applications (such as radar) and very high power radio and UHF television transmitters. History Origins Until the invention of the transistor in 1947, most practical high-frequency electronic amplifiers were made using thermionic valves. The simplest valve (named diode because it had two electrodes) was invented by John Ambrose Fleming while working for the Marconi Company in London in 1904. The diode conducted electricity in one direction only and was used as a radio detector a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric Company
The General Electric Company (GEC) was a major British industrial conglomerate involved in consumer and Arms industry, defence electronics, communications, and engineering. It was originally founded in 1886 as G. Binswanger and Company as an electrical goods wholesaler based in London. It quickly adopted a then-unorthodox business model of supplying electrical components over the counter. In 1889, the business was incorporated as the General Electric Company Ltd, and became a public limited company 11 years later. During the 1890s and 1900s, the company heavily invested into electric lighting, a sector that proved to be immensely profitable in the long term. The GEC was heavily impacted by the outbreak of the First World War, supplying various goods to the military, and thus becoming a major player in the electrical industry. In 1921, a new purpose-built company headquarters (Magnet House) was opened in Kingsway, London; two years later, GEC's industrial research laboratories at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Associated Electrical Industries
Associated Electrical Industries (AEI) was a British holding company formed in 1928 through the merger of British Thomson-Houston (BTH) and Metropolitan-Vickers electrical engineering companies. In 1967 AEI was acquired by GEC, to create the UK's largest industrial group. A scandal that followed the acquisition is said to have been instrumental in reforming accounting practices in the UK. Main subsidiaries * Metropolitan-Vickers (Metrovick) * British Thomson-Houston (BTH) * Ferguson, Pailin & Co (switchgear) * Edison Swan (lamps and radio valves) * AEI Lamp and Lighting * Siemens Brothers & Co (cables, telephone equipment and railway signaling apparatus) * Hotpoint (domestic appliances) * Premier Electric Heaters (incorporated into Hotpoint) * W.T. Henley (cables, insulators and low voltage switchgear) * Newton Victor (X-ray machines) * Sunvic Controls (heating controls) * Birlec (industrial electric furnaces) * International Refrigerator Company * Coldrator Take ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transistor
A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch electrical signals and electric power, power. It is one of the basic building blocks of modern electronics. It is composed of semiconductor material, usually with at least three terminal (electronics), terminals for connection to an electronic circuit. A voltage or Electric current, current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Some transistors are packaged individually, but many more in miniature form are found embedded in integrated circuits. Because transistors are the key active components in practically all modern electronics, many people consider them one of the 20th century's greatest inventions. Physicist Julius Edgar Lilienfeld proposed the concept of a field-effect transisto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuwait
Kuwait, officially the State of Kuwait, is a country in West Asia and the geopolitical region known as the Middle East. It is situated in the northern edge of the Arabian Peninsula at the head of the Persian Gulf, bordering Iraq to Iraq–Kuwait border, the north and Saudi Arabia to Kuwait–Saudi Arabia border, the south. With a coastline of approximately , Kuwait also shares a maritime border with Iran, across the Persian Gulf. Kuwait is a city-state, most of the country's population reside in the urban area, urban agglomeration of Kuwait City, the capital and largest city. , Kuwait has a population of 4.82 million, of which 1.53 million are Kuwaiti nationality law, Kuwaiti citizens while the remaining 3.29 million are Expatriates in Kuwait, foreign nationals from over 100 countries. Kuwait has the world's third List of sovereign states by immigrant and emigrant population, largest number of foreign nationals as a percentage of the population, where its citizens make up less th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolled Homogeneous Armour
Rolled homogeneous armour (RHA) is a type of vehicle armour made of a single steel composition hot-rolled to improve its material characteristics, as opposed to layered or cemented armour. Its first common application was in tanks. After World War II, it began to fall out of use on main battle tanks and other armoured fighting vehicles intended to see front-line combat as new anti-tank weapon technologies were developed which were capable of relatively easily penetrating rolled homogeneous armour plating even of significant thickness. Today, the term is primarily used as a unit of measurement of the protection offered by armour on a vehicle (often composed of materials that may not actually contain steel, or even contain any metals) in equivalent ''millimetres of RHA'', referring to the thickness of RHA that would provide the same protection. Typically, modern composite armour can provide the same amount of protection with much thinner and lighter construction than its protective ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers Vigilant
The Vickers Vigilant was a British 1960s era MCLOS Wire-guided missile, wire-guided anti-tank missile used by the British Army. It was also licence-built in the United States by Clevite for the US Marine Corps, and sometimes known as Clevite rounds in this case. Development began at Vickers-Armstrongs in 1956 as a private project to give the company's Weybridge Guided Missile Department something to do after the cancellation of Red Dean. By 1960 it had completed development and an extensive testing program, but the War Office remained disinterested as they wished for the Weybridge department to be disbanded as part of the ongoing formation of British Aircraft Corporation. On several occasions the Office explicitly stated they did not want to provide any encouragement to the team as this might make it harder to close the division down in the future. After considerable debate spanning several years, the project eventually won an initial order as it was the only suitable design to a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
