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Tank Phone
A Tank phone (also called a Tank telephone, Grunt phone, Tank-Infantry Phone, TIP, Infantry Tank Telephone, ITT, or Infantry phone) is a telephone mounted on the exterior of armoured vehicles to facilitate communication between people outside of the vehicle and those inside, whilst avoiding the tank crew becoming exposed to enemy fire. Purpose Communication between infantry and tanks may be possible via radio and other means. However, it is more efficient and reliable to provide a tank phone mounted typically on the rear of the tank in a small box that contains a standard telephone handset which infantrymen may use to speak directly to the tank commander. Infantrymen may thus direct the tank's fire, which they are better placed to do as the tank crew will typically have their vision impeded by being buttoned up within the tank. The typical method of doing this is using the present direction of the tank gun as a reference point and moving it onto the target from there using up/down ...
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Armoured Vehicles
Military vehicles are commonly armoured (or armored; see spelling differences) to withstand the impact of shrapnel, bullets, shells, rockets, and missiles, protecting the personnel inside from enemy fire. Such vehicles include armoured fighting vehicles like tanks, aircraft, and ships. Civilian vehicles may also be armoured. These vehicles include cars used by officials (e.g., presidential limousines), reporters and others in conflict zones or where violent crime is common. Civilian armoured cars are also routinely used by security firms to carry money or valuables to reduce the risk of highway robbery or the hijacking of the cargo. Armour may also be used in vehicles to protect from threats other than a deliberate attack. Some spacecraft are equipped with specialised armour to protect them against impacts from micrometeoroids or fragments of space debris. Modern aircraft powered by jet engines usually have them fitted with a sort of armour in the form of an aramid composite ...
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Handset
A handset is a component of a telephone that a user holds to the ear and mouth to receive audio through the receiver and speak to the remote party using the built-in transmitter. In earlier telephones, the transmitter was mounted directly on the telephone itself, which was attached to a wall at a convenient height or placed on a desk or table. Until the advent of the cordless telephone, the handset was usually wired to the base unit, typically by a flexible tinsel wire. The handset of a cordless telephone contains a radio transceiver which relays communication via a base station that is wired to the telephone line. A mobile phone does not require a base station and communicates directly with a cell site in designated frequency bands. Handset symbol A graphic symbol that designates a handset is used on cordless and mobile phones to specify placing or ending a telephone call. Usually a button with green upright (off-hook) handset icon is used for starting a call, and a r ...
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Tarakan
Tarakan is an island and the largest city of the Indonesian province of North Kalimantan. The island city is located in northern Borneo, midway along the coast of the province. The city boundaries are co-extensive with the island (including a couple of small islands off the coast of the Tarakan Barat District). Once a major oil-producing region during the colonial period, Tarakan had great strategic importance during the Pacific War and was among the first Japanese targets early in the conflict. It is the sole city within the newly established (in 2012) Indonesian province of North Kalimantan. According to Statistics Indonesia, the city had a population of 193,370 at the 2010 Census and 242,786 inhabitants at the 2020 Census. Geography The city is located on Tarakan island, which composed of of land. 27.5% of the city is composed of podzol soil and 57.63% latosol soil. The city is located between above sea level. History Etymology According to legends, native Tidungs e ...
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Main Battle Tanks
A main battle tank (MBT), also known as a battle tank or universal tank, is a tank that fills the role of armor-protected direct fire and maneuver in many modern armies. Cold War-era development of more powerful engines, better suspension systems and lighter-weight composite armor allowed the design of a tank that had the firepower of a super-heavy tank, the armor protection of a heavy tank, and the mobility of a light tank, in a package with the weight of a medium tank. Through 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 armored fighting vehicles. Main battle tanks are a key component of modern armies. House (1984), ''Toward Combined Arms Warfare: A Survey of 20th-Century Tactics, Doctrine, and Organization'' Modern MBTs seldom operate alone, as they are organized into armoured units that include the support of infantry, who may accompany the tanks in infantry figh ...
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Bougainville Campaign
The Bougainville campaign was a series of land and naval battles of the Pacific campaign of World War II between Allied forces and the Empire of Japan, named after the island of Bougainville. It was part of Operation Cartwheel, the Allied grand strategy in the South Pacific. The campaign took place in the Northern Solomons in two phases. The first phase, in which American troops landed and held the perimeter around the beachhead at Torokina, lasted from November 1943 through November 1944. The second phase, in which primarily Australian troops went on the offensive, mopping up pockets of starving, isolated but still-determined Japanese, lasted from November 1944 until August 1945, when the last Japanese soldiers on the island surrendered. Operations during the final phase of the campaign saw the Australian forces advance north towards the Bonis Peninsula and south towards the main Japanese stronghold around Buin, although the war ended before these two enclaves were comp ...
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Honeywell AGT1500
The Honeywell AGT1500 is a gas turbine engine. It is the main powerplant of the M1 Abrams series of tanks. The engine was originally designed and produced by the Lycoming Turbine Engine Division in the Stratford Army Engine Plant. In 1995, production was moved to the Anniston Army Depot in Anniston, Alabama, after the Stratford Army Engine Plant was shut down. Specifications Engine output peaks at , with of torque at that peak,AGT1500 page
, Honeywell.
which occurs at 3,000 rpm. The turbine can provide torque in excess of at significantly lower RPMs. The engine weighs approximately and occupies a volume of , measuring . The engine can use a variety of fuels, including

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Armoured Fighting Vehicle Equipment
Armour (British English) or armor (American English; see spelling differences) is a covering used to protect an object, individual, or vehicle from physical injury or damage, especially direct contact weapons or projectiles during combat, or from a potentially dangerous environment or activity (e.g. cycling, construction sites, etc.). Personal armour is used to protect soldiers and war animals. Vehicle armour is used on warships, armoured fighting vehicles, and some mostly ground attack combat aircraft. A second use of the term ''armour'' describes armoured forces, armoured weapons, and their role in combat. After the development of armoured warfare, tanks and mechanised infantry and their combat formations came to be referred to collectively as "armour". Etymology The word "armour" began to appear in the Middle Ages as a derivative of Old French. It is dated from 1297 as a "mail, defensive covering worn in combat". The word originates from the Old French , itself derived ...
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