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Bofors 75 mm Model 1929
Bofors 75 mm and Bofors 80 mm were two closely related designs of anti-aircraft and general-purpose artillery. Less well known than the 40 mm quick-firing AA gun, the gun was nevertheless adopted by armed forces of numerous countries during World War II, including Argentina, China, Dutch East Indies, Finland, Greece, Hungary, Persia and Thailand. It was closely related to the 8.8 cm Flak 18/36/37/41, one of the best-known AA guns of World War II, which was partially based on it. Some pieces captured by the Japanese in China served as the blueprint for the Type 4 75 mm AA Gun, a reverse-engineered clone of the Bofors 75mm gun. History and development World War I AA guns were often pieces of standard medium-calibre artillery modified for anti-aircraft fire. However, fast development of aerial warfare meant that a higher muzzle velocity was needed to target modern planes flying faster and at higher altitudes. Having lost the war, Germany had been forbidden from developin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manual Of Style
A style guide or manual of style is a set of standards for the writing, formatting, and design of documents. It is often called a style sheet, although that term also has multiple other meanings. The standards can be applied either for general use, or be required usage for an individual publication, a particular organization, or a specific field. A style guide establishes standard style requirements to improve communication by ensuring consistency both within a document, and across multiple documents. Because practices vary, a style guide may set out standards to be used in areas such as punctuation, capitalization, citing sources, formatting of numbers and dates, table appearance and other areas. The style guide may require certain best practices in writing style, usage, language composition, visual composition, orthography, and typography. For academic and technical documents, a guide may also enforce the best practice in ethics (such as authorship, research ethics, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muzzle Velocity
Muzzle velocity is the speed of a projectile (bullet, pellet, slug, ball/shots or shell) with respect to the muzzle at the moment it leaves the end of a gun's barrel (i.e. the muzzle). Firearm muzzle velocities range from approximately to in black powder muskets, to more than in modern rifles with high-velocity cartridges such as the .220 Swift and .204 Ruger, all the way to for tank guns firing kinetic energy penetrator ammunition. To simulate orbital debris impacts on spacecraft, NASA launches projectiles through light-gas guns at speeds up to . Projectile velocity For projectiles in unpowered flight, its velocity is highest at leaving the muzzle and drops off steadily because of air resistance. Projectiles traveling less than the speed of sound (about in dry air at sea level) are ''subsonic'', while those traveling faster are ''supersonic'' and thus can travel a substantial distance and even hit a target before a nearby observer hears the "bang" of the shot. Projec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch East Indies Campaign
The Dutch East Indies campaign of 1941–1942 was the conquest of the Dutch East Indies (present-day Indonesia) by forces from the Empire of Japan in the early days of the Pacific campaign of World War II. Forces from the Allies attempted unsuccessfully to defend the islands. The East Indies were targeted by the Japanese for their rich oil resources which would become a vital asset during the war. The campaign and subsequent three and a half year Japanese occupation was also a major factor in the end of Dutch colonial rule in the region. Background The East Indies was one of Japan's primary targets if and when it went to war because the colony possessed abundant valuable resources, the most important of which were its rubber plantations and oil fields; the colony was the fourth-largest exporter of oil in the world, behind the U.S., Iran, and Romania. The oil made the islands enormously important to the Japanese, so they sought to secure the supply for themselves. They sent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surabaya
Surabaya ( jv, ꦱꦸꦫꦧꦪ or jv, ꦯꦹꦫꦨꦪ; ; ) is the capital city of the Provinces of Indonesia, Indonesian province of East Java and the List of Indonesian cities by population, second-largest city in Indonesia, after Jakarta. Located on the northeastern border of Java island, on the Madura Strait, it is one of the earliest port cities in Southeast Asia. According to the Government of Indonesia, National Development Planning Agency, Surabaya is one of the Regions of Indonesia#Development regions, four main central cities of Indonesia, alongside Jakarta, Medan, and Makassar. The city has a population of 2.87 million within its city limits at the 2020 census and 9.5 million in the extended Surabaya metropolitan area, making it the List of metropolitan areas in Indonesia, second-largest metropolitan area in Indonesia. The city was settled in the 10th century by the Janggala, Kingdom of Janggala, one of the two Javanese kingdoms that was formed in 1045 when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilton-Fijenoord
Wilton-Fijenoord was a shipbuilding and repair company in Schiedam the Netherlands from 1929 to 1999. Presently, the shipyard of Wilton-Feijnoord is part of Damen Shiprepair Rotterdam. Merger of Wilton and Fijenoord (1929) Wilton-Fijenoord had two predecessors. Wilton's Dok- en Werf Maatschappij was the biggest predecessor of Wilton-Fijenoord, the other was the Shipyard Fijenoord. By the mid 1920s these shipyards had become rather similar. Wilton still had an advantage in ship repair, and Fijenoord was still ahead in ship construction, especially for the navy. The idea for a merger dated as far back as at least 1927. The rationale was that the still profitable Wilton company had a major overcapacity and was spread over two locations. The activities of Fijenoord could just as well be done in Schiedam. A concentration of the combined activities in Schiedam would lead to major cost savings. In 1929 talks led to an agreement for a financial merger between the companies. Shares in Wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Netherlands East Indies Army
The Royal Netherlands East Indies Army ( nl, Koninklijk Nederlands Indisch Leger; KNIL, ) was the military force maintained by the Kingdom of the Netherlands in its colony of the Dutch East Indies, in areas that are now part of Indonesia. The KNIL's air arm was the Royal Netherlands East Indies Army Air Force. Elements of the Royal Netherlands Navy and Government Navy were also stationed in the Netherlands East Indies. History 1814–1942 The KNIL was formed by royal decree on 14 September 1814. It was not part of the Royal Netherlands Army, but a separate military arm specifically formed for service in the Netherlands East Indies. Its establishment coincided with the Dutch drive to expand colonial rule from the 17th century area of control to the far larger territories constituting the Dutch East Indies seventy years later. The KNIL was involved in many campaigns against indigenous groups in the area including the Padri War (1821–1845), the Java War (1825–1830), crushin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metaxas Line
The Metaxas Line (, ''Grammi Metaxa'') was a chain of fortifications constructed along the line of the Greco-Bulgarian border, designed to protect Greece in case of a Bulgarian invasion after the rearmament of Bulgaria. It was named after Ioannis Metaxas, then Prime Minister of Greece, and chiefly consists of tunnels that led to observatories, emplacements and machine gun nests. The constructions are so sturdy that they survive to this day, some of which are still in active service. Some of them are open to the public. The Metaxas Line consists of 21 independent fortification complexes, the largest of which is Fort Roupel as it covers 6.1 out of the 155 km of the full line and had been constructed at a height of 322 m. Illumination was initially mostly provided by oil-lamps, although generators were also installed. Currently, the fortifications are supplied with public electricity, but they are also equipped with generators. Ventilation was achieved both naturally and art ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
40M Nimród
The 40M Nimród was a World War II Hungarian self-propelled anti-aircraft gun based on a license-built copy of the Swedish Landsverk L-62 Anti I SPAAG but with a new turret, and developed independently. Originally, it was intended to be used both in the anti-aircraft and tank destroyer roles, but it proved to be ineffective against Soviet tanks like the KV-1 tank. Therefore, it was primarily utilized against lightly armored vehicles and for air defense. Design The 40M Nimród was a license-built variant of the Landsverk L-62 Anti I SPAAG. The L-62 Anti I was based on the chassis of the Landsverk L-60 tank which was already produced under license in Hungary as the 38M Toldi. The L-62 did differ though from the original L-60 chassis. It was longer and wider and had one more roadwheel per side. Besides that, the 40M Nimród differed on its own from the original L-62 Anti I design. While the chassis was basically the same as the L-62 Anti I, although utilizing parts from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
29M Bofors 80mm-es Légvédelmi ágyú Tüzelőállásban
9M or 9-M may refer to: * Central Mountain Air (IATA: 9M) * New York State Route 9M * Northrop N-9M * Period-after-opening symbol * AIM-9M, a model of the AIM-9 Sidewinder * ČZW-9M, a Czech submachine gun made by ČZW * DE-9M, see D-subminiature * FN FNP-9m, see FN Herstal FNP * Kappa 9M, a model of Kappa rocket * PC-9M, see Pilatus PC-9 * Salmson 9M, several models of Salmson 9 * VF-9M, see VMF-111 Marine Fighting Squadron 111 (VMF-111) was a reserve fighter squadron in the United States Marine Corps. Nicknamed the "Devil Dogs", the squadron was one of the first aviation squadrons in the Marine Corps and gained national attention in the 19 ... * Yak-9M, see Yakovlev Yak-9 * 9M, an aircraft registration prefix for Malaysia See also * M9 (other) {{Letter-NumberCombDisambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire-control System
A fire-control system (FCS) is a number of components working together, usually a gun data computer, a director, and radar, which is designed to assist a ranged weapon system to target, track, and hit a target. It performs the same task as a human gunner firing a weapon, but attempts to do so faster and more accurately. Naval based fire control Origins The original fire-control systems were developed for ships. The early history of naval fire control was dominated by the engagement of targets within visual range (also referred to as direct fire). In fact, most naval engagements before 1800 were conducted at ranges of . Even during the American Civil War, the famous engagement between and was often conducted at less than range. Rapid technical improvements in the late 19th century greatly increased the range at which gunfire was possible. Rifled guns of much larger size firing explosive shells of lighter relative weight (compared to all-metal balls) so greatly increa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winter War
The Winter War,, sv, Vinterkriget, rus, Зи́мняя война́, r=Zimnyaya voyna. The names Soviet–Finnish War 1939–1940 (russian: link=no, Сове́тско-финская война́ 1939–1940) and Soviet–Finland War 1939–1940 (russian: link=no, Сове́тско-финляндская война́ 1939–1940) are often used in Russian historiographybr>В.Н. Барышников. От прохладного мира к Зимней войне. Восточная политика Финляндии в 1930–е годы. Санкт-Петербург, 1997.; О.Д. Дудорова. Неизвестные страницы Зимней войны. In: Военно-исторический журнал. 1991. №9.; Зимняя война 1939–1940. Книга первая. Политическая история. М., 1998. – ; ttp://www.otvaga2004.narod.ru/photo/winterwar/wwar1.htm М. Коломиец. Танки в Зимней войне 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HIH Siderius , 2019
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HIH may refer to: * His or Her Imperial Highness, a title used for members of an imperial family * HIH Insurance, a former Australian insurance company * Harstad University College (Norwegian: ') * Heart in Hand (band), an English band * Pamosu language's ISO code * " Harleys in Hawaii", a song by Katy Perry Katheryn Elizabeth Hudson (born October 25, 1984), known professionally as Katy Perry, is an American singer, songwriter, and television personality. Known for her influence on modern pop music and her Camp (style), campy style, she has been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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