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 ...
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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 ...
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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 ...
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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 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 ...

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 ...
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