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Type 2 20 Mm AA Machine Cannon
The Type 2 20 mm AA machine cannon was a Japanese-designed anti-aircraft gun, based on the assembly of the German Flak 38. It entered service in 1942. Design Introduced in 1942, compared to the earlier Type 98 20 mm AA machine cannon, Type 2 20 mm had higher maximum rate of fire, could be elevated to 95 degrees and had a central fire-control system. The central fire-control system developed for the Type 2 could control and direct six of the guns at once. The gun was based on the German 2 cm Flak 30/38/Flakvierling. The Type 2 number was designated for the year the gun was accepted, 2602 in the Japanese imperial year calendar, or 1942 in the Gregorian calendar.War Department TM-E-30-480 ''Handbook on Japanese Military Forces'', September 1944, p. 400. Variant Two of the guns mounted together formed a variant known as the Type 2 20 mm twin AA machine cannon. The prototype Type 98 20 mm AAG tank The Type 98 20 mm AAG (anti-air gun) tank was a Japanese self-prope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autocannon
An autocannon, automatic cannon or machine cannon is a fully automatic gun that is capable of rapid-firing large-caliber ( or more) armour-piercing, explosive or incendiary shells, as opposed to the smaller-caliber kinetic projectiles (bullets) fired by a machine gun. Autocannons have a longer effective range and greater terminal performance than machine guns, due to the use of larger/heavier munitions (most often in the range of , but bigger calibers also exist), but are usually smaller than tank guns, howitzers, field guns or other artillery. When used on its own, the word "autocannon" typically indicates a non-rotary weapon with a single barrel. When multiple rotating barrels are involved, such a weapon is referred to as a "rotary autocannon" or occasionally "rotary cannon", for short (particularly on aircraft). Autocannons are heavy weapons that are unsuitable for use by infantry. Due to the heavy weight and recoil Recoil (often called knockback, kickback o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gregorian Calendar
The Gregorian calendar is the calendar used in most parts of the world. It was introduced in October 1582 by Pope Gregory XIII as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long, more closely approximating the 365.2422-day 'tropical' or 'solar' year that is determined by the Earth's revolution around the Sun. The rule for leap years is: There were two reasons to establish the Gregorian calendar. First, the Julian calendar assumed incorrectly that the average solar year is exactly 365.25 days long, an overestimate of a little under one day per century, and thus has a leap year every four years without exception. The Gregorian reform shortened the average (calendar) year by 0.0075 days to stop the drift of the calendar with respect to the equinoxes.See Wikisource English translation of the (Latin) 1582 papal bull '' Inter gravissimas''. Second, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II Weapons Of Japan
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of many parts. In ''scientific cosmology'' the world or universe is commonly defined as " e totality of all space and time; all that is, has been, and will be". '' Theories of modality'', on the other hand, talk of possible worlds as complete and consistent ways how things could have been. ''Phenomenology'', starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In ''philosophy of mind'', the world is commonly contrasted with the mind as that which is represented by the mind. ''Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-aircraft Guns Of Japan
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] |
World War II Anti-aircraft Guns
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of many parts. In ''scientific cosmology'' the world or universe is commonly defined as " e totality of all space and time; all that is, has been, and will be". '' Theories of modality'', on the other hand, talk of possible worlds as complete and consistent ways how things could have been. ''Phenomenology'', starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In ''philosophy of mind'', the world is commonly contrasted with the mind as that which is represented by the mind. ''Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery Of Japan
Artillery in Japan was first used during the Sengoku period in the 16th century; and its use has continued to develop. History 13th to 17th century Due to its proximity with China, Japan had long been familiar with gunpowder. Primitive cannons seem to have appeared in Japan around 1270, as simple metal tubes invented in China and called ''Teppō'' (鉄砲 Lit. "Iron cannon"). They don't seem to have been used extensively however, and cannon usage would only become major after the arrival of the Portuguese in 1543. A few light cannon pieces were used at the Battle of Nagashino in 1575, but the first cannons entirely made by the Japanese were cast a few months after the battle. They were bronze two-pounders, about 9 feet long, and were delivered to the warlord Oda Nobunaga. The first Japanese matchlock guns were designed by the Japanese after Tanegashima Tokitaka bought two matchlock guns from Portuguese adventurers who were aboard a Chinese junk ship in Tanegashima. Within ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 98 20 Mm AAG Tank
The Type 98 20 mm AAG (anti-air gun) tank was a Japanese self-propelled anti-aircraft gun using a twin Soki Type II 20 mm anti-air gun. They were combined with the chassis of the Type 98 Ke-Ni. The gun crew worked from a raised platform with a modest amount of protection from the sides - the twin 20 mm gun fired through a large gun shield gave further protection for the crew from that direction. In November 1941, development began on an anti-aircraft version of the Type 98 with a 20 mm AA gun. During development of the AA gun tank, the Imperial Japanese Army experimented with various configurations. Single gun variant An earlier produced single gun prototype was designated the ''Type 98 Ta-Se'' anti-aircraft tank, in November 1941. The name was taken from ''taikū'' ('anti-air') ''sensha'' ('tank'). It was equipped with a single converted Type 98 20 mm AA machine cannon in a circumferential turret. During trials, it was determined that the chassis used for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 2 20 Mm Twin AA Machine Cannon
Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Type (Unix), a command in POSIX shells that gives information about commands. * Type safety, the extent to which a programming language discourages or prevents type errors. * Type system, defines a programming language's response to data types. Mathematics * Type (model theory) * Type theory, basis for the study of type systems * Arity or type, the number of operands a function takes * Type, any proposition or set in the intuitionistic type theory * Type, of an entire function ** Exponential type Biology * Type (biology), which fixes a scientific name to a taxon * Dog type, categorization by use or function of domestic dogs Lettering * Type is a design concept for lettering used in typography which helped bring about modern textual printin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Year
The , colloquially known as the or "national calendar year" is a unique calendar system in Japan. It is based on the legendary foundation of Japan by Emperor Jimmu in 660 BC. ''Kōki'' emphasizes the long history of Japan and the Imperial dynasty. History ''Kōki'' dating was used as early as 1872, shortly after Japan adopted the Gregorian calendar system, and was popular during the life of the Meiji Constitution (1890–1947). The Summer Olympics and Tokyo Expo were planned as anniversary events in 1940 (''Kōki 2600''); but the international games were not held because of the Second Sino-Japanese War. The Imperial Japanese Army (IJA, from 1927) and Imperial Japanese Navy (IJN, from 1929) used the ''Kōki'' system for identification. For example many Japanese names circa World War II use imperial years: * The IJA's Type 92 battalion gun was called "ninety-two" because its design was completed in 1932, and the 2592nd year since the first Emperor of Japan was 1932 (''Kōki 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Japanese Army
The was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emperor of Japan as supreme commander of the army and the Imperial Japanese Navy. Later an Inspectorate General of Aviation became the third agency with oversight of the army. During wartime or national emergencies, the nominal command functions of the emperor would be centralized in an Imperial General Headquarters (IGHQ), an ad hoc body consisting of the chief and vice chief of the Army General Staff, the Minister of the Army, the chief and vice chief of the Naval General Staff, the Inspector General of Aviation, and the Inspector General of Military Training. History Origins (1868–1871) In the mid-19th century, Japan had no unified national army and the country was made up of feudal domains (''han'') with the Tokugawa shogunate (''bakufu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2 Cm Flak 30/38/Flakvierling
The Flak 30 (''Flugzeugabwehrkanone 30'') and improved Flak 38 were 20 mm anti-aircraft guns used by various German forces throughout World War II. It was not only the primary German light anti-aircraft gun but by far the most numerously produced German artillery piece throughout the war. It was produced in a variety of models, notably the Flakvierling 38 which combined four Flak 38 autocannons onto a single carriage. Development The Germans fielded the unrelated early 2 cm Flak 28 just after World War I, but the Treaty of Versailles outlawed these weapons and they were sold to Switzerland. The original Flak 30 design was developed from the Solothurn ST-5 as a project for the Kriegsmarine, which produced the 20 mm C/30. The gun fired the "Long Solothurn", a 20 × 138 mm belted cartridge that had been developed for the ST-5 and was one of the more powerful 20 mm rounds. The C/30, featuring a barrel length of 65 calibres, had a fire rate of about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 98 20 Mm AA Machine Cannon
The Type 98 20 mm AA machine cannon was the most common light anti-aircraft gun of the Imperial Japanese Army. It entered service in 1938 and was used until the end of World War II. After World War II this gun was used by the Indonesian Army in the Indonesian National Revolution and North Vietnam in First Indochina War. Design and use The Type 98 20 mm AA machine cannon was the most common light anti-aircraft gun of the Japanese military. The Type 98 designation was given to this gun as it was accepted in the year 2598 of the Japanese calendar (1938).War Department TM-E-30-480 ''Handbook on Japanese Military Forces''. September 1944, p. 400. It entered service that same year and first saw combat in Nomonhan. It was used until the end of World War II. About 80% of the Imperial Japanese Army light AA guns were Type 98s. The gun could be emplaced in about three minutes by an experienced crew or fired inaccurately from its wheels. This weapon and its variants were based on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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