|
122 Mm Gun M1931 (A-19)
122 mm corps gun M1931 (A-19) (russian: 122-мм корпусная пушка обр. 1931 г. (А-19)) was a Soviet field gun, developed in the late 1920s and early 1930s. In 1939 the gun was replaced in production by an improved variant, M1931/37. The piece saw action in World War II with the Red Army. Captured guns were employed by Wehrmacht and the Finnish Army. Development history From the late 1920s the Red Army sought to upgrade its First World War era artillery pieces. In January 1927 the Main Artillery Directorate (GRAU) initiated development of a new 122 mm gun for corps artillery. The development was initially entrusted to GRAU design bureau (led by F. F. Lender until its death in September 1927), and from June 1929 - to the design bureau of All-Union Ordnance Trust, with assistance from GRAU designers.Shirokorad A. B. - ''Encyclopedia of the Soviet Artillery''. On 17 June 1929 a prototype, along with technological documentation, was ordered from Motovil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hämeenlinna
Hämeenlinna (; sv, Tavastehus; krl, Hämienlinna; la, Tavastum or ''Croneburgum'') is a city and municipality of about inhabitants in the heart of the historical province of Tavastia and the modern province of Kanta-Häme in the south of Finland. Hämeenlinna is the oldest inland city of Finland and was one of the most important Finnish cities until the 19th century. It remains an important regional center. The medieval Häme Castle (also ''Tavastia Castle''; fi, Hämeen linna) is located in the city. Hämeenlinna is known as the birthplace of Finnish national composer Jean Sibelius. Today, it belongs to the region of Tavastia Proper (Kanta-Häme), and before 2010 it was the residence city for the Governor of the province of Southern Finland. Nearby cities include the capital Helsinki (), Tampere () and Lahti (), the regional center of Päijänne Tavastia (Päijät-Häme). The neighboring municipalities of Hämeenlinna are Akaa, Asikkala, Hattula, Hausjärvi, Hollola, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muzzle Brake
A muzzle brake or recoil compensator is a device connected to, or a feature integral to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted muzzle rise. Barrels with an integral muzzle brake are often said to be ported. The concept of a muzzle brake was first introduced for artillery. It was a common feature on many anti-tank guns, especially those mounted on tanks, in order to reduce the area needed to take up the strokes of recoil and kickback. They have been used in various forms for rifles and pistols to help control recoil and the rising of the barrel that normally occurs after firing. They are used on pistols for practical pistol competitions, and are usually called compensators in this context.STI article on Limcat Under ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limbers And Caissons (military)
A limber is a two-wheeled cart designed to support the trail of an artillery piece, or the stock of a field carriage such as a caisson or traveling forge, allowing it to be towed. The trail is the hinder end of the stock of a gun-carriage, which rests or slides on the ground when the carriage is unlimbered. A caisson () is a two-wheeled cart designed to carry artillery ammunition; the British term is "ammunition wagon". Caissons are also used to bear the casket of the deceased in some state and military funerals in certain Western cultures, including the United States. Before the 19th century As artillery pieces developed trunnions and were placed on carriages featuring two wheels and a trail, a limber was devised. This was a simple cart with a pintle. When the piece was to be towed, it was raised over the limber and then lowered, with the pintle fitting into a hole in the trail. Horses or other draft animals were harnessed in single file to haul the limber. There was no provis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulics
Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. Free surface hydraulics is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, estuar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recoil
Recoil (often called knockback, kickback or simply kick) is the rearward thrust generated when a gun is being discharged. In technical terms, the recoil is a result of conservation of momentum, as according to Newton's third law the force required to accelerate something will evoke an equal but opposite reactional force, which means the forward momentum gained by the projectile and exhaust gases (ejectae) will be mathematically balanced out by an equal and opposite momentum exerted back upon the gun. In hand-held small arms, the recoil momentum will be eventually transferred to the ground, but will do so through the body of the shooter hence resulting in a noticeable impulse commonly referred to as a "kick". In heavier mounted guns, such as heavy machine guns or artillery pieces, recoil momentum is transferred to the Earth's surface through the platform on which the weapon is mounted. In order to bring the rearward moving gun to a halt, the momentum acquired by the gun is di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
152 Mm Howitzer M1910/37
152 mm howitzer M1910/37 (russian: 152-мм гаубица обр. 1910/37 гг.) was a limited production Soviet 152.4 mm (6 inch) howitzer, a modernization of the 152 mm howitzer M1910, initially designed by Schneider. The gun was employed by Red Army in World War II. Development and production history The gun resulted from a modernization of the 152 mm howitzer M1910. The M1910 was initially designed by Schneider. Putilov Plant and Perm Plant delivered 348 pieces in 1911-27. By 1936, the RKKA possessed 101 M1910s, including 5 practice pieces. Work on modernizing the gun started in 1936. Because of small number of M1910s in service, extensive upgrade was not considered worthwhile. The gun was rechambered for larger cartridge, same as used by the 152 mm howitzer M1909/30; upgraded barrels received a mark "lengthened chamber". Some pieces also had their wooden wheels replaced by steel ones with rubber tires, resulting in much higher transportation speed of 18 km ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gun Shield
A U.S. Marine manning an M240 machine gun equipped with a gun shield A gun shield is a flat (or sometimes curved) piece of armor designed to be mounted on a crew-served weapon such as a machine gun, automatic grenade launcher, or artillery piece. Military Some mounted machine guns and artillery pieces are equipped with metal armor plates to protect the gunners from small arms fire and shrapnel from explosions. They were fitted to some armored fighting vehicles and patrol boats during the Vietnam War. Gun shields fell out of widespread use after the Vietnam war, but they have seen a resurgence in popularity during the 1990s. Israeli military analysts began urging the use of gun shields, pointing to the grave risk to soldiers exposed to fire from automatic weapons. In particular, it was noted that many casualties were hit in areas not protected by body armor or a helmet, such as the neck or face. The U.S. began using gun shields during the 2000s-era wars in Iraq and Afghanista ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tire
A tire (American English) or tyre (British English) is a ring-shaped component that surrounds a Rim (wheel), wheel's rim to transfer a vehicle's load from the axle through the wheel to the ground and to provide Traction (engineering), traction on the surface over which the wheel travels. Most tires, such as those for automobiles and bicycles, are pneumatically inflated structures, which also provide a flexible cushion that absorbs shock as the tire rolls over rough features on the surface. Tires provide a footprint, called a contact patch, that is designed to match the weight of the vehicle with the bearing strength of the surface that it rolls over by providing a bearing pressure that will not deform the surface excessively. The materials of modern pneumatic tires are synthetic rubber, natural rubber, fabric, and wire, along with carbon black and other chemical compounds. They consist of a tire tread, tread and a body. The tread provides Traction (engineering), traction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Spring
A leaf spring is a simple form of spring commonly used for the suspension in wheeled vehicles. Originally called a ''laminated'' or ''carriage spring'', and sometimes referred to as a semi-elliptical spring, elliptical spring, or cart spring, it is one of the oldest forms of vehicle suspension. A leaf spring is one or more narrow, arc-shaped, thin plates which are attached to the axle and chassis in a way that allows the leaf spring to flex vertically in response to irregularities in the road surface. Lateral leaf springs are the most commonly used arrangement, running the length of the vehicle and mounted perpendicular to the wheel axle, but numerous examples of transverse leaf springs exist as well. Leaf springs can serve multiple suspension functions: location, springing, and to some extent damping as well, through interleaf friction. However, this friction is not well controlled, resulting in stiction and irregular suspension motions. For this reason, some manufacturers have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising France, Russia, and Britain) and the Triple Alliance (containing Germany, Austria-Hungary, and Italy). Tensions in the Balkans came to a head on 28 June 1914, following the assassination of Archduke Franz Ferdin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
152 Mm Howitzer-gun M1937 (ML-20)
The 152 mm howitzer-gun M1937 (ML-20) (russian: 152-мм гаубица-пушка обр. 1937 г. (МЛ-20)), is a Soviet heavy gun-howitzer. The gun was developed by the design bureau of the plant no 172, headed by F. F. Petrov, as a deep upgrade of the 152-mm gun M1910/34, in turn based on the 152-mm siege gun M1910, a pre-World War I design by Schneider. It was in production from 1937 to 1946. The ML-20 saw action in World War II, mainly as a corps / army level artillery piece of the Soviet Army. Captured guns were employed by Wehrmacht and the Finnish Army. Post World War II, the ML-20 saw combat in numerous conflicts during the mid to late twentieth century. Description The ML-20 was officially classified as howitzer-gun, i.e. an artillery system which combines characteristics of a howitzer and (to lesser extent) of a gun and therefore can be used in both roles. This universality was achieved by wide range of elevation angles and by using separate loading with 13 d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Hydraulics")
.jpg "Click for more on -> Recoil")
_Driver_and_Commander_from_A_Squadron%2C_3rd_Cavalry_Regiment.jpg "Click for more on -> Gun Shield")
.jpg "Click for more on -> Leaf Spring")
_1.jpg "Click for more on -> 152 Mm Howitzer-gun M1937 (ML-20)")