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B-10 Recoilless Rifle
The B-10 recoilless rifle (''Bezotkatnojie orudie-10'', known as the RG82 in East Germany) is a Soviet 82 mm smoothbore recoilless gun. It could be carried on the rear of a BTR-50 armoured personnel carrier. It was a development of the earlier SPG-82, and entered Soviet service during 1954. It was phased out of service in the Soviet Army in the 1960s and replaced by the SPG-9, remaining in service with parachute units at least until the 1980s. Although now obsolete it was used by many countries during the Cold War. Description The weapon consists of a large barrel, with a PBO-2 sight mounted to the left. It is mounted on a small carriage, which has two large wheels, which can be removed. The carriage has an integrated tripod, from which the weapon is normally fired. A small wheel is fitted to the front of the barrel to prevent it touching the ground while being towed. It is normally towed by vehicle, although it can be towed by its four-man crew for short distances usin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk (Byelorussian SSR), Tashkent ( Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Govern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iraqi Civil War (2014–2017)
Iraqi civil war may refer to: * Iraqi–Kurdish conflict (1918–2003), wars and rebellions by Iraqi Kurds against the government ** First Iraqi–Kurdish War (1961–70) ** Second Iraqi–Kurdish War (1974–75) * 1991 Iraqi uprisings, rebellions in Iraq during a ceasefire in the Gulf War * Iraqi Kurdish Civil War (1994–97), a conflict between rival Kurdish factions in Iraqi Kurdistan * Iraqi conflict (2003–present). See also: **Iraq War (2003–11), a war that began with the U.S. invasion of Iraq ***Iraqi insurgency (2003–2011) *** Occupation of Iraq (2003–2011) *** Iraqi Civil War (2006–2008), a civil war between Sunni and Shia militias including the Iraqi government and Al-Qaeda in Iraq (now known as ISIL) ** Iraqi insurgency (2011–2013), an escalation of insurgent and sectarian violence after the U.S. withdrew ** War in Iraq (2013–2017), a war between ISIL and the Iraqi government and allies ** 2017 Iraqi–Kurdish conflict, a short conflict between the Iraq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-10 AMW
B1, B.I, B.1 or B-1 may refer to: Biology and chemistry * Bradykinin receptor B1, a human protein * Cinnamtannin B1, a condensed tannin found in cinnamon * Combretastatin B-1, a stilbenoid found in ''Combretum sp.'' * Fumonisin B1, a toxins produced by several species of ''Fusarium'' molds * B-1 cell, a lymphocyte type * Arecatannin B1, a tannin found in the betel nut * Proanthocyanidin B1, a B type proanthocyanidin * Vitamin B1, also known as thiamine Media * B1 TV, a Romanian TV network * A class of FM radio broadcasting in North America Roads Vehicles * Rockwell B-1 Lancer, a United States Air Force strategic bomber * B1 (New York City bus) serving Brooklyn * B1 type submarine, a World War II Imperial Japanese Navy submarine class * Alsace-Lorraine B 1, an Alsace-Lorraine P 1 class steam locomotive * Marussia B1, a high-performance luxury sports coupé built by Russian automaker Marussia Motors * GS&WR Class B1, a Great Southern and Western Railway Irish ste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold War
The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because there was no large-scale fighting directly between the two superpowers, but they each supported major regional conflicts known as proxy wars. The conflict was based around the ideological and geopolitical struggle for global influence by these two superpowers, following their temporary alliance and victory against Nazi Germany and Imperial Japan in 1945. Aside from the nuclear arsenal development and conventional military deployment, the struggle for dominance was expressed via indirect means such as psychological warfare, propaganda campaigns, espionage, far-reaching embargoes, rivalry at sports events, and technological competitions such as the Space Race. The Western Bloc was led by the United States as well as a number of othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPG-9
The SPG-9 Kopyo (''Spear'') ( Russian: СПГ-9 Копьё) is a tripod-mounted man-portable, 73 millimetre calibre recoilless gun developed by the Soviet Union. It fires fin-stabilised, rocket-assisted HE and HEAT projectiles similar to those fired by the 73 mm 2A28 Grom low pressure gun of the BMP-1 armored vehicle. It was accepted into service in 1962, replacing the B-10 recoilless rifle. Description The projectile is launched from the gun by a small charge, which gives it an initial velocity of between 250 and 400 metres per second. The launch charge also imparts spin to the projectile by a series of offset holes. Once the projectile has traveled approximately 20 meters (65.6 feet) from the launcher, a rocket motor in its base ignites. For the PG-9 projectile, this takes it to a velocity of 700 metres per second (2,297 feet per second) before the motor burns out. The SPG-9 is heavy (~60 kg), and is normally transported by vehicle, and carried into position by it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BTR-50
The BTR-50 (BTR stands for ''Bronetransporter'' (БТР, Бронетранспортер), literally "armored transporter") is a Soviet amphibious armored personnel carrier (APC) based on the PT-76 light tank. The BTR-50 is tracked, unlike most in the BTR series, which are wheeled. The BTR-50 shares many similarities with two other APCs, the OT-62 TOPAS and the Type 77. While the OT-62 is an improved copy of the BTR-50 developed jointly by Czechoslovakia and Poland, the Type 77, based on the Type 63 amphibious light tank developed by the People's Republic of China (PRC), is not a copy of the BTR-50. Description Like the PT-76, the BTR-50 has a flat, boat-shaped hull. Unlike the PT-76, it has a new superstructure added to the front of the vehicle. The hull of the BTR-50 is made of all-welded steel with the crew compartment in the front, the troop compartment in the center and the engine compartment at the rear. It has the ability to transport up to 20 fully equipped infant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rifling
In firearms, rifling is machining helical grooves into the internal (bore) surface of a gun's barrel for the purpose of exerting torque and thus imparting a spin to a projectile around its longitudinal axis during shooting to stabilize the projectile longitudinally by conservation of angular momentum, improving its aerodynamic stability and accuracy over smoothbore designs. Rifling is characterized by its twist rate, which indicates the distance the rifling takes to complete one full revolution, such as "1 turn in 10 inches" (1:10 inches), "1 turn in 254 mm" ("1:254 mm" or "1:25.4 cm)", or the like. Normally, an experienced shooter can infer the units of measurement from the numbers alone. A shorter distance indicates a faster twist, meaning that for a given velocity the projectile will rotate at a higher spin rate. The combination of length, weight, and shape of a projectile determines the twist rate needed to gyroscopically stabilize it – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recoilless Rifle
A recoilless rifle, recoilless launcher or recoilless gun, sometimes abbreviated "RR" or "RCL" (for ReCoilLess) is a type of lightweight artillery system or man-portable launcher that is designed to eject some form of countermass such as propellant gas from the rear of the weapon at the moment of firing, creating forward thrust that counteracts most of the weapon's recoil. This allows for the elimination of much of the heavy and bulky recoil-counteracting equipment of a conventional cannon as well as a thinner-walled barrel, and thus the launch of a relatively large projectile from a platform that would not be capable of handling the weight or recoil of a conventional gun of the same size. Technically, only devices that use spin-stabilized projectiles fired from a rifled barrel are recoilless rifles, while smoothbore variants (which can be fin-stabilized or unstabilized) are recoilless guns. This distinction is often lost, and both are often called recoilless rifles. Though sim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smoothbore
A smoothbore weapon is one that has a barrel without rifling. Smoothbores range from handheld firearms to powerful tank guns and large artillery mortars. History Early firearms had smoothly bored barrels that fired projectiles without significant spin. To minimize inaccuracy-inducing tumbling during flight, their projectiles required an aerodynamically uniform shape, such as a sphere. However, surface imperfections on the projectile and/or the barrel will cause even a sphere to rotate randomly during flight, and the Magnus effect will curve it off the intended trajectory when spinning on any axis not parallel to the direction of travel. Rifling the bore surface with spiral grooves or polygonal valleys imparts a stabilizing gyroscopic spin to a projectile that prevents tumbling in flight. Not only does this more than counter Magnus-induced drift, but it allows a longer, more streamlined round with greater sectional density to be fired from the same caliber barrel, improvi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Germany
East Germany, officially the German Democratic Republic (GDR; german: Deutsche Demokratische Republik, , DDR, ), was a country that existed from its creation on 7 October 1949 until German reunification, its dissolution on 3 October 1990. In these years the State (polity), state was a part of the Eastern Bloc in the Cold War. Commonly described as a communist state, it described itself as a Socialist state, socialist "workers' and peasants' state".Patrick Major, Jonathan Osmond, ''The Workers' and Peasants' State: Communism and Society in East Germany Under Ulbricht 1945–71'', Manchester University Press, 2002, Its territory was administered and occupied by Soviet Union, Soviet forces following the end of World War II—the Soviet occupation zone of Germany, Soviet occupation zone of the Potsdam Agreement, bounded on the east by the Oder–Neisse line. The Soviet zone surrounded West Berlin but did not include it and West Berlin remained outside the jurisdiction of the GDR. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kolomna
Kolomna ( rus, Колóмна, p=kɐˈlomnə) is a historical city in Moscow Oblast, Russia, situated at the confluence of the Moskva and Oka Rivers, (by rail) southeast of Moscow. Population: History Mentioned for the first time in 1177, Kolomna was founded in 1140–1160 according to the latest archaeological surveys. Kolomna's name may originate from the Old Russian term for "on the bend (in the river)", especially as the old city is located on a sharp bend in the Moscow River. In 1301, Kolomna became the first town to be incorporated into the Moscow Principality. Like some other ancient Russian cities, it has a kremlin, which is a citadel similar to the more famous one in Moscow and also built of red brick. The stone Kolomna Kremlin was built from 1525–1531 under the Russian Tsar Vasily III. The Kolomna citadel was a part of the Great Abatis Border and, although much of the surrounding wall was removed in the eighteenth century and materials used to construct other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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