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Željava Air Base
Željava Air Base, situated on the border between Croatia and Bosnia and Herzegovina under the Plješevica mountain, near the city of Bihać, Bosnia, was the largest underground airport and military air base in Yugoslavia, and one of the largest in Europe. The facilities are shared by the local governments of Bihać and Lika-Senj County in Croatia. History The "Objekat" series of military installations can be found in secluded but strategically important areas within the former Yugoslavia, and the construction of these military bases were initialized by the SFRJ's defence ministry. During the Yugoslav Wars, most of these bases were used by the Serbs in certain operations, but due to extenuating circumstances imposed by the Croat forces, they were destroyed and later rendered useless for military use. Nowadays, they are popular for urban exploration, although it is risky due to the possibility of anti-personnel landmines being located in unexplored areas. However, some were spare ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Air Base
An air base (sometimes referred to as a military air base, military airfield, military airport, air station, naval air station, air force station, or air force base) is an aerodrome used as a military base by a military force for the operation of military aircraft. Air base facilities An air base typically has some facilities similar to a civilian airport—for example, air traffic control and firefighting. Some military aerodromes have passenger facilities; for example RAF Brize Norton in England has a terminal used by passengers for the Royal Air Force's flights. A number of military air bases also have a civil enclave for commercial passenger flights, e.g. Beijing Nanyuan Airport (China), Chandigarh Airport (India), Ibaraki Airport (Japan), Burlington International Airport (USA), Sheikh Ul-Alam International Airport Srinagar (India), Taipei Songshan Airport (Taiwan). Some air bases have revetments, hardened aircraft shelters, or even underground hangars, to protect aircraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas Obscura
''Atlas Obscura'' is an American-based online magazine and travel company. It was founded in 2009 by author Joshua Foer and documentary filmmaker/author Dylan Thuras. It catalogs unusual and obscure travel destinations via user-generated content. The articles on the website cover a number of topics including history, science, food, and obscure places. History Thuras and Foer met in 2007, and soon discussed ideas for a different kind of atlas, featuring places not commonly found in guidebooks. They hired a web designer in 2008 and launched ''Atlas Obscura'' in 2009. Sommer Mathis (formerly of '' The Atlantic's'' CityLab) was the site's Editor in Chief from 2017 to 2020. She was succeeded by Samir Patel, formerly of ''Archaeology'' magazine, who became the site's Editorial Director in 2020 and Editor in Chief in 2021. David Plotz remained as the site's CEO for five years (October 2014 — November 2019). Warren Webster, former president and CEO of digital publisher ''Coveteur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yugoslav Wars
The Yugoslav Wars were a series of separate but related#Naimark, Naimark (2003), p. xvii. ethnic conflicts, wars of independence, and Insurgency, insurgencies that took place in the Socialist Federal Republic of Yugoslavia, SFR Yugoslavia from 1991 to 2001. The conflicts both led up to and resulted from the breakup of Yugoslavia, which began in mid-1991, into six independent countries matching the six entities known as republics which previously composed Yugoslavia: Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Serbia, and North Macedonia (previously named ''Macedonia''). Yugoslavia's constituent republics declared independence due to unresolved tensions between ethnic minorities in the new countries, which fuelled the wars. While most of the conflicts ended through peace accords that involved full international recognition of new states, they resulted in a massive number of deaths as well as severe economic damage to the region. During the initial stages of the breaku ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface-to-air Missile
A surface-to-air missile (SAM), also known as a ground-to-air missile (GTAM) or surface-to-air guided weapon (SAGW), is a missile designed to be launched from the ground to destroy aircraft or other missiles. It is one type of anti-aircraft system; in modern armed forces, missiles have replaced most other forms of dedicated anti-aircraft weapons, with anti-aircraft guns pushed into specialized roles. The first attempt at SAM development took place during World War II, but no operational systems were introduced. Further development in the 1940s and 1950s led to operational systems being introduced by most major forces during the second half of the 1950s. Smaller systems, suitable for close-range work, evolved through the 1960s and 1970s, to modern systems that are man-portable. Shipborne systems followed the evolution of land-based models, starting with long-range weapons and steadily evolving toward smaller designs to provide a layered defence. This evolution of design increasin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2K12 Kub
The 2K12 ''"Kub"'' (russian: 2К12 "Куб"; en, cube) (NATO reporting name: SA-6 "Gainful") mobile surface-to-air missile system is a Soviet low to medium-level air defence system designed to protect ground forces from air attack. "2К12" is the GRAU designation of the system. Each 2K12 battery consists of a number of similar tracked vehicles, one of which carries the 1S91 (SURN vehicle, NATO designation "Straight Flush") 25 kW G/ H band radar (with a range of ) equipped with a continuous wave illuminator, in addition to an optical sight. The battery usually also includes four triple-missile transporter erector launchers (TELs), and four trucks, each carrying three spare missiles and a crane. The TEL is based on a GM-578 chassis, while the 1S91 radar vehicle is based on a GM-568 chassis, all developed and produced by MMZ. Development The development of the 2K12 was started after 18 July 1958 at the request of the CPSU Central Committee. The system was set the require ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cafeteria
A cafeteria, sometimes called a canteen outside the U.S., is a type of food service location in which there is little or no waiting staff table service, whether a restaurant or within an institution such as a large office building or school; a school dining location is also referred to as a dining hall or lunchroom (in American English). Cafeterias are different from coffeehouses, although the English term came from the Spanish ''cafetería'', same meaning. Instead of table service, there are food-serving counters/stalls or booths, either in a line or allowing arbitrary walking paths. Customers take the food that they desire as they walk along, placing it on a tray. In addition, there are often stations where customers order food, particularly items such as hamburgers or tacos which must be served hot and can be immediately prepared with little waiting. Alternatively, the patron is given a number and the item is brought to their table. For some food items and drinks, such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Novi Avion
The Novi Avion (Serbian Cyrillic:Нови Aвион en, New Aeroplane) was a fourth generation multi-role combat aircraft programme that was to be built by Yugoslav aircraft manufacturer SOKO. The Avion featured a cropped delta- canard configuration and was to be capable of achieving supersonic speeds under a combat configuration. The Avion shared several areas of commonality with French company Dassault Aviation's Rafale fighter aircraft; France had provided considerable technical assistance to Yugoslavia during the course of the Avion programme. Development work on the fighter was undertaken by the ''Vazduhoplovno Tehnički Institut'' (VTI) ( Aeronautical Technical Institute) of Belgrade, the former Yugoslavia's main military-technical institute, in cooperation with Dassault Aviation. Upon its entry to service with the Yugoslav Air Force, which was anticipated to occur during the late 1990s to early 2000s, the Avion would have been used as a replacement for the nation's ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fixed-wing Aircraft
A fixed-wing aircraft is a heavier-than-air flying machine, such as an airplane, which is capable of flight using wings that generate lift caused by the aircraft's forward airspeed and the shape of the wings. Fixed-wing aircraft are distinct from rotary-wing aircraft (in which the wings form a rotor mounted on a spinning shaft or "mast"), and ornithopters (in which the wings flap in a manner similar to that of a bird). The wings of a fixed-wing aircraft are not necessarily rigid; kites, hang gliders, variable-sweep wing aircraft and airplanes that use wing morphing are all examples of fixed-wing aircraft. Gliding fixed-wing aircraft, including free-flying gliders of various kinds and tethered kites, can use moving air to gain altitude. Powered fixed-wing aircraft (airplanes) that gain forward thrust from an engine include powered paragliders, powered hang gliders and some ground effect vehicles. Most fixed-wing aircraft are flown by a pilot on board the craft, but some ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mikoyan-Gurevich MiG-21 Variants
This is a list of variants and specifications for variants of the Mikoyan-Gurevich MiG-21, which differed considerably between models. Variants All information in this section adapted from ''MiG-21'' (2008).Gordon, Yefim. ''Mikoyan MiG-21'' (Famous Russian aircraft). Hinckley: Midland, 2008. . Development and preproduction – Generation Zero (1954–1956) ;Ye-1 (1954) :Preliminary swept-wing design around the Mikulin AM-5A non-reheated turbojet. Instead of building it, the design was quickly reworked into the Ye-2. ;Ye-2 (1954; NATO: "Faceplate") :Swept-wing prototype with Mikulin AM-9B reheated turbojet, armed with three NR-30 cannon, and could carry one UB-16-57 rocket pod. Fitted with RSIU-4 VHF radio, ''Uzel'' IFF interrogator, ARK-5 ''Amur'' automatic direction finder with RUP landing approach computer, MRP-48P ''Dyatel'' marker beacon receiver, SRO-2 ''Khrom'' IFF transponder, ''Sirena-2'' RWR, SRD-1M ''Radal'-M'' radar rangefinder linked to an ASP-5N computing gunsight. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squadron (aviation)
A squadron in 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 a ..., army aviation, or naval aviation is a Military unit, unit comprising a number of military aircraft and their aircrews, usually of the same type, typically with 12 to 24 aircraft, sometimes divided into three or four flight (military unit), flights, depending on aircraft type and air force. Land-based squadrons equipped with heavier type aircraft such as long-range bombers, cargo aircraft, or air refueling tankers have around 12 aircraft as a typical authorization, while most land-based fighter equipped units have an authorized number of 18 to 24 aircraft. In naval aviation, sea-based and land-based squadrons will typically have smaller numbers of aircraft, ranging from as low as four for early warning t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Bombings Of Hiroshima And Nagasaki
The United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945, respectively. The two bombings killed between 129,000 and 226,000 people, most of whom were civilians, and remain the only use of nuclear weapons in armed conflict so far. In the final year of World War II, the Allies prepared for a costly invasion of the Japanese mainland. This undertaking was preceded by a conventional and firebombing campaign that devastated 64 Japanese cities. The war in the European theatre concluded when Germany surrendered on 8 May 1945, and the Allies turned their full attention to the Pacific War. By July 1945, the Allies' Manhattan Project had produced two types of atomic bombs: "Fat Man", a plutonium implosion-type nuclear weapon; and "Little Boy", an enriched uranium gun-type fission weapon. The 509th Composite Group of the United States Army Air Forces was trained and equipped with the specialized Silverplate version of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Bomb
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions (thermonuclear bomb), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter. The first test of a fission ("atomic") bomb released an amount of energy approximately equal to . The first thermonuclear ("hydrogen") bomb test released energy approximately equal to . Nuclear bombs have had yields between 10 tons TNT (the W54) and 50 megatons for the Tsar Bomba (see TNT equivalent). A thermonuclear weapon weighing as little as can release energy equal to more than . A nuclear device no larger than a conventional bomb can devastate an entire city by blast, fire, and radiation. Since they are weapons of mass destruction, the proliferation of nuclear weapons is a focus of international relations policy. Nuclear weapons have been deployed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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