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Radar Tower
A radar tower is a tower whose function is to support a radar facility, usually a local airport surveillance radar, and hence often at or in the vicinity of an airport or a military air base. The antenna is often continually rotating. In addition, radar towers are used for the installation and operation of search and height finder radars at military radar stations, where the mission is to support air defense missions. These missions were characterized as Aircraft Control & Warning (AC&W), or Long Range Surveillance in support of the Semi-Automatic Ground Environment (SAGE). The tower typically has a continuously rotating parabolic antenna. Often, the antenna is protected from the weather by a radome, and is thus not visible from the outside. For regional air traffic control, en route radar installations are used. The data from these radars is fed into the civilian ''RADNET'' system and transferred to all civil and military control centres. Ideally, a radar tower is built on a h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Langlütjen I (Insel) 2012-05-13-DSCF8511
Langlütjen () is the name of the two uninhabited artificial islands created in the 19th century, ''Langlütjen I'' and ''Langlütjen II'', north off the coast of the district Wesermarsch in Lower Saxony, Germany. The islands are administered by the town of Nordenham. Their size is 16,000 and 17,000 square metres, respectively. On the small islands are the remains of fortifications of what was first the Prussian Navy and later the ''Kaiserliche Marine''. Its function was to protect the harbours of Bremen (city), Bremen and Bremerhaven, but the islands were never involved in active warfare. ''Langlütjen II'' was sold to a private owner in January 2006. ''Langlütjen I'' was sold around the same time. External pages Description of Langlütjen I and II with pictures(German)(German)Private association Inselfort Langlütjen II (German) Frisian Islands Uninhabited islands of Germany Islands of Lower Saxony Artificial islands of Lower Saxony {{FrieslandDE-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Air Force
The German Air Force (, ) is the aerial warfare branch of the , the armed forces of Germany. The German Air Force (as part of the ) was founded in 1956 during the era of the Cold War as the aerial warfare branch of the armed forces of West Germany. After the reunification of West and East Germany in 1990, it integrated parts of the air force of the former German Democratic Republic, which itself had been founded in 1956 as part of the National People's Army. There is no organizational continuity between the current Luftwaffe of the Bundeswehr and the former Luftwaffe of the Wehrmacht founded in 1935, which was completely disbanded in 1945/46 after World War II. The term that is used for both the historic and the current German air force is the German-language generic designation of any air force. The commander of the German Air Force is Lieutenant General Ingo Gerhartz. As of 2015, the German Air Force uses eleven air bases, two of which host no flying units. Furthermore, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odenwald
The Odenwald () is a low mountain range in the Germany, German states of Hesse, Bavaria and Baden-Württemberg. Location The Odenwald is located between the Upper Rhine Plain with the Bergstraße Route, Bergstraße and the ''Hessisches Ried'' (the northeastern section of the Rhine rift) to the west, the Main (river), Main and the Bauland (a mostly unwooded area with good soils) to the east, the Hanau-Seligenstadt Basin – a subbasin of the Upper Rhine Rift Valley in the Rhine-Main Lowlands – to the north and the Kraichgau to the south. The part south of the Neckar valley is sometimes called the ''Kleiner Odenwald'' ("Little Odenwald"). The northern and western Odenwald belong to southern Hesse, with the south stretching into Baden. In the northeast, a small part lies in Lower Franconia in Bavaria. Geology The Odenwald, along with other parts of the Central German Uplands, belongs to the Variscan orogeny, Variscan, which more than 300 million years ago in the Carbonife ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neunkircher Höhe
The Neunkircher Höhe (605 metres) is the highest elevation of the Hessian part of the Odenwald. The hill is located near the village Neunkirchen and is the origin of the rivers Modau, Gersprenz Gersprenz () is a river that starts in the Odenwald, Hesse and flows into the river Main near Aschaffenburg, Bavaria, Germany. Including its source river Mergbach, it is long, without the Mergbach it is long. Tributaries The tributaries of the ... and Lauter. A viewing tower, 34 metres high, was built on the summit in 1906 and replaced an older predecessor, which had been built in 1888 and destroyed by a storm in 1904. Hills of Hesse {{Hesse-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar Antenna
Radar engineering is the design of technical aspects pertaining to the components of a radar and their ability to detect the return energy from moving scatterers — determining an object's position or obstruction in the environment. This includes field of view in terms of solid angle and maximum unambiguous range and velocity, as well as angular, range and velocity resolution. Radar sensors are classified by application, architecture, radar mode, platform, and propagation window. Applications of radar include adaptive cruise control, autonomous landing guidance, radar altimeter, air traffic management, early-warning radar, fire-control radar, forward warning collision sensing, ground penetrating radar, surveillance, and weather forecasting. Architecture choice The angle of a target is detected by scanning the field of view with a highly directive beam. This is done electronically, with a phased array antenna, or mechanically by rotating a physical antenna. The emitter and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AN/FPS-24 Radar
The AN/FPS-24 Radar was a long range early warning radar used by the United States Air Force Air Defense Command. It used a two-frequency signal in order to avoid fluctuation loss, which causes signals on single-frequency radars to fade in and out as the target moves. Reducing this effect results in a much steadier signal. General Electric was the primary contractor for the design, which operated in the very high frequency (VHF) at 214 to 236 MHz. In accordance with the Joint Electronics Type Designation System (JETDS), the "''AN/FPS-24''" designation represents the 24th design of an Army-Navy electronic device for fixed ground search radar. The JETDS system also now is used to name all Department of Defense electronic systems. Construction Twelve systems were built between 1958 and 1962 at various locations around the United States. Problems with the design were revealed during initial testing Eufaula AFS (Eufaula, Alabama) in 1960, resulting in modifications. Additional prob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force
An air force in the broadest sense is the national military branch that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an army aviation or naval aviation units. Typically, air forces are responsible for air supremacy, gaining control of the air, carrying out Strategic bombing, strategic and tactical bombing missions, and providing support to land forces, land and naval forces often in the form of aerial reconnaissance and close air support. The term air force may also refer to a tactical air force or numbered air force, which is an operational formation either within a national air force or comprising several air components from allied nations. Air forces typically consist of a combination of fighter aircraft, fighters, bombers, Military helicopter, helicopters, Military transport aircraft, transport planes and other aircraft. Many air forces may command and control ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-aircraft Warfare
Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface (Submarine#Armament, submarine-launched), and air-based weapon systems, in addition to associated sensor systems, command and control arrangements, and passive measures (e.g. barrage balloons). It may be used to protect naval, army, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defense. Missile defense, Missile defense is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight. Most modern anti-aircraft (AA) weapons systems are optimized for short-, medium-, or long-range air defence, although some systems may incorporate multiple weapons (such as both autocannons and surface-to-air missiles). 'Layered air defence' usually refers to multiple 't ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bundeswehr
The (, ''Federal Defence'') are the armed forces of the Germany, Federal Republic of Germany. The is divided into a military part (armed forces or ''Streitkräfte'') and a civil part, the military part consists of the four armed forces: German Army, German Navy, German Air Force and Cyber and Information Domain Service (Germany), Cyber and Information Domain Service, which are supported by the Bundeswehr Support Area. , the had a strength of 180,215 active-duty military personnel and 80,761 civilians, placing it among the 30 largest military forces in the world, and making it the second largest in the European Union behind French Armed Forces, France. In addition, the has approximately 34,600 reserve personnel (2024). With German military expenditures at $88.5 billion (2024), the is the fourth-highest-funded military in the world, though military expenditures have until recently remained low at an average at 1.5% of national GDP, well below the non-binding NATO targ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar Device
Radar navigation is the utilization of marine and aviation radar systems for vessel and aircraft navigation. When a craft is within radar range of land or special radar aids to navigation, the navigator can take distances and angular bearings to charted objects and use these to establish arcs of position and lines of position on a chart.Maloney, 2003:744. A fix consisting of only radar information is called a ''radar fix''.Bowditch, 2002:816. Some types of radar fixes include the relatively self-explanatory methods of "range and bearing to a single object,"National Imagery and Mapping Agency, 2001:163. "two or more bearings," "tangent bearings," and "two or more ranges." Parallel indexing is a technique defined by William Burger in the 1957 book ''The Radar Observer's Handbook''.National Imagery and Mapping Agency, 2001:169. This technique involves creating a line on the screen that is parallel to the ship's course, but offset to the left or right by some distance. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tower
A tower is a tall Nonbuilding structure, structure, taller than it is wide, often by a significant factor. Towers are distinguished from guyed mast, masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures. Towers are specifically distinguished from buildings in that they are built not to be habitable but to serve other functions using the height of the tower. For example, the height of a clock tower improves the visibility of the clock, and the height of a tower in a fortified building such as a castle increases the visibility of the surroundings for defensive purposes. Towers may also be built for observation tower, observation, leisure, or telecommunication purposes. A tower can stand alone or be supported by adjacent buildings, or it may be a feature on top of a larger structure or building. Etymology Old English ''torr'' is from Latin ''turris'' via Old French ''tor''. The Latin term together with Greek language, Greek τύ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
