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VS-JAP Mine
The VS-JAP ( Valsella Jumping Anti-Personnel) is an Italian bounding anti-personnel mine. It is the latest of the Valmara family of bounding mines that includes the Valmara 59 and Valmara 69. The mine has a waterproof plastic faceted cylindrical body with a three-pronged cap, with a central fixing point for a tripwire. The fuze is triggered via downward (someone treading on the mine) or sideways (pulling a tripwire) pressure. When the mine is triggered a small propellant charge in the base launches the inner body of the mine into the air. When it reaches a height of approximately 50 cm, a steel wire is pulled taut, jerking a striker into the detonator of the mine, firing it. The mine's main explosive charge is surrounded by 1,200 steel cubes, which are reportedly lethal within 25 meters of the point of detonation. Specification * Diameter: 130 mm * Height: 190 mm * Weight: 2.8 kg * Explosive content: 0.5 kg of Composition B with a 9 g booster charge of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VS-JAP Mine
The VS-JAP ( Valsella Jumping Anti-Personnel) is an Italian bounding anti-personnel mine. It is the latest of the Valmara family of bounding mines that includes the Valmara 59 and Valmara 69. The mine has a waterproof plastic faceted cylindrical body with a three-pronged cap, with a central fixing point for a tripwire. The fuze is triggered via downward (someone treading on the mine) or sideways (pulling a tripwire) pressure. When the mine is triggered a small propellant charge in the base launches the inner body of the mine into the air. When it reaches a height of approximately 50 cm, a steel wire is pulled taut, jerking a striker into the detonator of the mine, firing it. The mine's main explosive charge is surrounded by 1,200 steel cubes, which are reportedly lethal within 25 meters of the point of detonation. Specification * Diameter: 130 mm * Height: 190 mm * Weight: 2.8 kg * Explosive content: 0.5 kg of Composition B with a 9 g booster charge of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valsella Meccanotecnica
Valsella Meccanotecnica SpA (also known as Valsella) was one of Italy's largest manufacturers of land mines. The Company's headquarters initially were in Montichiari. It had two production plants in Castenedolo near Brescia, Italy. The three companies of Valsella, Tecnovar Italiana SpA, and Misar SpA (both the latter started by former Valsella employees) together were the centre of Italian mine production. Valsella ceased production of mines in 1994 due to the Italian Government's moratorium on production of anti-personnel mines. In 1999, prior to bankruptcy, it moved to complete civil production of engineering and vehicle projects. It ceased to be a separate company in 2005. History The beginning Valsella was formed in 1969–1970 by Brescia-based entrepreneurs, Francesco Rena and Antonio De Cristofano, with ties to the Italian Ministry of Defence and the Redon Trust, a Schaan, Liechtenstein, based company of which one of the Valsella founders, Cristofano, was an attorney. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-personnel Mine
Anti-personnel mines are a form of mine designed for use against humans, as opposed to anti-tank mines, which are designed for use against vehicles. Anti-personnel mines may be classified into blast mines or fragmentation mines; the latter may or may not be a bounding mine. The mines are often designed to injure, not kill, their victims to increase the logistical (mostly medical) support required by enemy forces that encounter them. Some types of anti-personnel mines can also damage the tracks on armoured vehicles or the tires of wheeled vehicles. The International Campaign to Ban Landmines has sought to ban mines culminating in the 1997 Ottawa Treaty, although this treaty has not yet been accepted by over 30 countries. Use Anti-personnel mines are used in a similar manner to anti-tank mines, in static "mine fields" along national borders or in defense of strategic positions as described in greater detail in the land mine article. What makes them different from most anti-ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valmara 59
The Valmara 59 is a large cylindrical Italian bounding anti-personnel mine. It is the first in the "Valmara" family of mines produced by Valsella Meccanotecnica, and was followed by the Valmara 69 and VS-JAP. The mine's body is plastic with a distinctive five-pronged metal head. The central prong has a hole, to allow the threading a trip wire. The inner body of the mine has a main charge surrounded with approximately 1,000 steel cubes, below which is a steel wire connecting it to the base of the mine. When the mine is triggered a small charge launches the mine into the air approximately 45 cm before the steel wire is pulled taut, the jolt of which pulls a striker into the detonator. A secondary time fuse triggers the mine after three seconds if it has not detonated after being triggered. The fragments produced by the mine are lethal to a range of 25 meters, and are capable of penetrating light armour. Specifications * Diameter: 102 mm * Height: 196 mm * Weight: 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valmara 69
Valmara 69 or V-69 is an Italian bounding anti-personnel mine manufactured by Valsella. The mine was developed from the V-59 mine, and although the mine is no longer produced in Italy, a number of copies were produced in other countries e.g. the "SPM-1" manufactured by Singapore. The South African version was called the J-69, and was an identical copy of the Italian version. A single centre prong version was also produced. It is no longer produced by South Africa who are compliant with the Mine Ban Treaty requirements. Description The mine has a short tubular olive green or sand colored plastic body inside which is the steel bounding body of the mine. On top of the mine is a round fuze cap with five prongs. The mine is triggered when the fuze cap tilts, either because of pressure on one of the prongs or a pull on an attached tripwire. The tilting fuze mechanism is not affected by overpressure. When the mine is triggered, a spring-loaded firing pin fires a percussion cap inside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuze
In military munitions, a fuze (sometimes fuse) is the part of the device that initiates function. In some applications, such as torpedoes, a fuze may be identified by function as the exploder. The relative complexity of even the earliest fuze designs can be seen in cutaway diagrams. A fuze is a device that detonates a munition's explosive material under specified conditions. In addition, a fuze will have safety and arming mechanisms that protect users from premature or accidental detonation. For example, an artillery fuze's battery is activated by the high acceleration of cannon launch, and the fuze must be spinning rapidly before it will function. "Complete bore safety" can be achieved with mechanical shutters that isolate the detonator from the main charge until the shell is fired. A fuze may contain only the electronic or mechanical elements necessary to signal or actuate the detonator, but some fuzes contain a small amount of primary explosive to initiate the detonation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firing Pin
A firing pin or striker is a part of the firing mechanism of a firearm that impacts the primer in the base of a cartridge and causes it to fire. In firearms terminology, a striker is a particular type of firing pin where a compressed spring acts directly on the firing pin to provide the impact force rather than it being struck by a hammer. The terms may also be used for a component of equipment or a device which has a similar function. Such equipment or devices include: artillery, munitions and pyrotechnics. Firearms The typical firing pin is a thin, simple rod with a hardened, rounded tip that strikes and crushes the primer. The rounded end ensures the primer is indented rather than pierced (to contain propellant gasses). It sits within a hole through the breechblock and is struck by the hammer when the trigger is "pulled". A light firing-pin spring is often used to keep the firing pin rearward. It may be termed a ''firing-pin return spring'', since it returns it to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detonator
A detonator, frequently a blasting cap, is a device used to trigger an explosive device. Detonators can be chemically, mechanically, or electrically initiated, the last two being the most common. The commercial use of explosives uses electrical detonators or the capped fuse which is a length of safety fuse to which an ordinary detonator has been joined. Many detonators' primary explosive is a material called ASA compound. This compound is formed from lead azide, lead styphnate and aluminium and is pressed into place above the base charge, usually TNT or tetryl in military detonators and PETN in commercial detonators. Other materials such as DDNP (diazo dinitro phenol) are also used as the primary charge to reduce the amount of lead emitted into the atmosphere by mining and quarrying operations. Old detonators used mercury fulminate as the primary, often mixed with potassium chlorate to yield better performance. A blasting cap is a small sensitive primary explosive device ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composition B
Composition B, colloquially Comp B, is an explosive consisting of castable mixtures of RDX and TNT. It is used as the main explosive filling in artillery projectiles, rockets, land mines, hand grenades and various other munitions. It was also used for the explosive lenses in the first implosion-type nuclear weapons developed by the United States.''Atom Bombs: The Top Secret Inside Story of Little Boy and Fat Man'', John Coster-Mullen, 2003Nuclear Weapons FAQ section 8.1.1: The Design of Gadget, Fat Man, and "Joe 1" (RDS-1) accessed August 10, 2009 The standard proportions of ingredients (by weight) are 59.5% RDX ( |
Booster Charge
{{unreferenced, date=August 2011 An explosive booster is a sensitive explosive charge that acts as a bridge between a (relatively weak) conventional detonator and a low-sensitivity (but typically high-energy) explosive such as TNT. By itself, the initiating detonator would not deliver sufficient energy to set off the low-sensitivity charge. However, it detonates the primary charge (the booster), which then delivers an explosive shockwave that is sufficient to detonate the secondary, main, high-energy charge. Unlike C4 plastic explosive, not all explosives can be detonated simply by inserting a detonator and firing it. An initiator such as a shock tube, cannon fuse, or even a conventional detonator does not deliver sufficient shock to detonate charges comprising TNT, Composition B, ANFO and many other high explosives. Therefore, some form of "booster" is required to amplify the energy released by the detonator so that the main charge will detonate. At first, picric acid was u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-personnel Mines
Anti-personnel mines are a form of mine designed for use against humans, as opposed to anti-tank mines, which are designed for use against vehicles. Anti-personnel mines may be classified into blast mines or fragmentation mines; the latter may or may not be a bounding mine. The mines are often designed to injure, not kill, their victims to increase the logistical (mostly medical) support required by enemy forces that encounter them. Some types of anti-personnel mines can also damage the tracks on armoured vehicles or the tires of wheeled vehicles. The International Campaign to Ban Landmines has sought to ban mines culminating in the 1997 Ottawa Treaty, although this treaty has not yet been accepted by over 30 countries. Use Anti-personnel mines are used in a similar manner to anti-tank mines, in static "mine fields" along national borders or in defense of strategic positions as described in greater detail in the land mine article. What makes them different from most anti-ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
