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PZA Loara
The PZA Loara (Polish: ''Przeciwlotniczy Zestaw Artyleryjski'' or "anti-aircraft artillery system") is a Polish armored radar-directed self-propelled anti-aircraft gun system. The original PZA Loara prototype was based on the chassis of the T-72M tank. The production version known as PZA Loara-A is based on the chassis of the PT-91 MBT. Description The system was developed in Poland in the late 1990s by RADWAR S.A. in cooperation with numerous state and industry partners. Work on the project began in 1994 with an emphasis on the PZA variant of the vehicle. A working prototype was completed by the year 2000, which was subsequently submitted for live fire trials in September. It was originally planned that the LOARA program would also include a missile-armed version of the system – called the PZR Loara – a missile-armed version of the vehicle based on the PZA and sharing approx. 70% parts commonality. The PZR was ultimately canceled. Early prototypes were built on a modified T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-propelled Anti-aircraft Gun
An anti-aircraft vehicle, also known as a self-propelled anti-aircraft gun (SPAAG) or self-propelled air defense system (SPAD), is a mobile vehicle with a dedicated anti-aircraft capability. Specific weapon systems used include machine guns, autocannons, larger guns, or missiles, and some mount both guns and longer-ranged missiles (e.g. the Pantsir-S1). Platforms used include both trucks and heavier combat vehicles such as armored personnel carriers and tanks, which add protection from aircraft, artillery, and small arms fire for front line deployment. Anti-aircraft guns are usually mounted in a quickly-traversing turret with a high rate of elevation, for tracking fast-moving aircraft. They are often in dual or quadruple mounts, allowing a high rate of fire. In addition, most anti-aircraft guns can be used in a direct-fire role against surface targets to great effect. Today, missiles (generally mounted on similar turrets) have largely supplanted anti-aircraft guns, but they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science And Technology In Poland
Education has been of prime interest to Poland's rulers since the early 12th century. The catalog of the library of the Cathedral Chapter in Kraków dating from 1110 shows that Polish scholars already then had access to western European literature. In 1364, King Kazimierz the Great founded the Cracow Academy, which would become one of the great universities of Europe. The Polish people have made considerable contributions in the fields of science, technology and mathematics. The list of famous scientists in Poland begins in earnest with the polymath, astronomer and mathematician Nicolaus Copernicus, who formulated the heliocentric theory and made an important contribution to the scientific revolution. In 1773 King Stanisław August Poniatowski established the Commission of National Education, the world's first ministry of education. After the third partition of Poland, in 1795, no Polish state existed. The 19th and 20th centuries saw many Polish scientists working abroad. One of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-propelled Anti-aircraft Weapons
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 tank destroyer, tank hunter, tank killer, or self-propelled anti-tank gun is a type of armoured fighting vehicle, armed with a direct fire artillery gun or missile launcher, designed specifically to engage and destroy enemy tanks, often w ..., 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, a model for studying the motion of swarms {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-aircraft Guns Of Poland
Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, subsurface ( submarine launched), and air-based weapon systems, associated sensor systems, command and control arrangements, and passive measures (e.g. barrage balloons). It may be used to protect naval, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defence. NATO refers to airborne air defence as counter-air and naval air defence as anti-aircraft warfare. Missile defence is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight. In some countries, such as Britain and Germany during the Second World War, the Soviet Union, and modern NATO and the United States, ground-based air defence and air defence aircraft h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armoured Fighting Vehicles Of Poland
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9K22 Tunguska
The 2K22 Tunguska (russian: 2К22 "Тунгуска") is a Soviet and now Russian tracked self-propelled anti-aircraft weapon armed with a surface-to-air gun and missile system. It is designed to provide day and night protection for infantry and tank regiments against low-flying aircraft, helicopters, and cruise missiles in all weather conditions. The NATO reporting name for the missile used by the weapon system is SA-19 " Grison". Development Development of the 2K22 anti-aircraft system began on 8 June 1970. At the request of the Soviet Ministry of Defense, the KBP Instrument Design Bureau in Tula, under the guidance of the appointed Chief Designer A. G. Shipunov, started work on a 30mm anti-aircraft system as a replacement for the 23mm ZSU-23-4. The project, code-named " Tunguska", was undertaken to improve on the observed shortcomings of the ZSU-23-4 (short range and no early warning) and a counter to new ground attack aircraft in development, such as the A-10 Thunderbol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 87 Self-propelled Anti-aircraft Gun
The is a Japanese air defense weapon built around the Oerlikon 35 mm twin cannon system as used on the Gepard self-propelled anti-aircraft gun. The system uses a modified Type 74 tank chassis. It is also nicknamed by field officers as "Guntank" after the similar-looking mecha in the ''Mobile Suit Gundam'' series. Also called Guntank or 87AW. History As the JSDF began to seek a replacement for the M42 Duster SPAAGs provided by the United States, the Japanese Defense Agency began to issue requirements for the production of a local SPAAG unit to replace the M42. |
K30 Biho
The South Korean K30 Biho (Korean: 비호, Hanja: 飛虎; literally "Flying Tiger") twin 30 mm self-propelled anti-aircraft weapon was developed to meet the operational requirements of the Republic of Korea Armed Forces for a highly mobile short range air defense system suited to the operational and terrain conditions of the Korean peninsula. It combines an electro-optically guided 30 mm gun system with a surveillance radar system on a K200 chassis. It supplements the K263A1 Chungung, a self-propelled 20 mm Vulcan system. The K30 is primarily built by Hanwha Defense. History The K30 was first announced as a project in 1983 with 600 personnel conducting research and around 10 billion won spent on R&D. In September 2001, the production of prototypes were done under Tong-il Heavy Industries before Doosan Infracore concluded a contract with Korea's Defense Acquisition Program in 2007. An initial order was made in 2002 to supply the K30. The approximately W500 billio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marksman Anti-aircraft System
Marksman is a British short range air defense system developed by Marconi, consisting of a turret, a Marconi Series 400 radar and two Swiss Oerlikon 35 mm anti-aircraft autocannons. It is similar to the German Gepard system in terms of engine performance, ammunition carried and effective range of the ammunition. The turret can be adapted to many basic tank chassis to create a self-propelled anti-aircraft gun. The only known major operator of the system to date is the Finnish Army, which ordered 7 units in 1990. The turrets were fitted on Polish T-55AM tank chassis. The system is known as the ItPsv 90 in Finnish service (''Ilmatorjuntapanssarivaunu'' 90, Anti-Aircraft tank 90, the number being the year the tank entered service). It is considered a very accurate anti-aircraft artillery system, having a documented hit percentage of 52.44%. In 2010, the Marksman systems in service in Finland were moved to war-time storage. In 2015 work began to install the system on the Leopa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kielce
Kielce (, yi, קעלץ, Keltz) is a city in southern Poland, and the capital of the Świętokrzyskie Voivodeship. In 2021, it had 192,468 inhabitants. The city is in the middle of the Świętokrzyskie Mountains (Holy Cross Mountains), on the banks of the Silnica River, in the northern part of the historical Polish province of Lesser Poland. Kielce has a history back over 900 years, and the exact date that it was founded remains unknown. Kielce was once an important centre of limestone mining and the vicinity is famous for its natural resources like copper, lead and iron, which, over the centuries, were exploited on a large scale. There are several fairs and exhibitions held in Kielce throughout the year. The city and its surroundings are also known for their historic architecture, green spaces and recreational areas like the Świętokrzyski National Park. In sports, the city is known as the home of the top-tier handball club, multiple Polish Champion and one-time EHF Champion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Conditioning
Air conditioning, often abbreviated as A/C or AC, is the process of removing heat from an enclosed space to achieve a more comfortable interior environment (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling the humidity of internal air. Air conditioning can be achieved using a mechanical 'air conditioner' or alternatively a variety of other methods, including passive cooling or ventilative cooling. Air conditioning is a member of a family of systems and techniques that provide Heating, ventilation, and air conditioning, heating, ventilation, and air conditioning (HVAC). Heat pumps are similar in many ways to air conditioners, but use a reversing valve to allow them to both heat and also cool an enclosed space. Air conditioners, which typically use vapor-compression refrigeration, range in size from small units used within vehicles or single rooms to massive units that can cool large buildings. Air source heat pumps, which can be used for heat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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