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A naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, any vessel. Naval mines can be used offensively, to hamper enemy shipping movements or lock vessels into a harbour; or defensively, to protect friendly vessels and create "safe" zones.
The Paixhans gun was the first naval gun designed to fire explosive shells. It was developed by the French general Henri-Joseph Paixhans in 1822–1823. The design furthered the evolution of naval artillery into the modern age. Its use presaged the end of wood as the preferred material in naval warships, and the rise of the ironclad.
The LAW 80, sometimes erroneously referred to as LAW 94, is a man-portable, disposable anti-tank weapon currently in use by the British Army and a few other militaries.
The CBU-100 Cluster Bomb is an American cluster bomb which is employed primarily in an anti-tank mode. It weighs 222 kg and carries 247 Mk 118 Mod 1 bomblets.
The AA mine discharger was a Japanese anti-aircraft weapon of the Second World War. The device was a simple tube like an infantry mortar of 70 mm or 81 mm caliber. Instead of a standard mortar bomb, the projectile was a tube containing seven individual mines, each approximately 11/16ths of an inch in diameter (18 mm) and 3 inches (76 mm) long. Each mine was equipped with its own parachute. When fired, the mortar threw the shell to a range of 3,000 to 4,000 feet and a maximum altitude of approximately 600 m. The shell ejected the mines at the top of its arc. They would then float down on their parachutes. They were fused to detonate on contact or after a fixed time period, damaging nearby aircraft. The projectile could alternatively be launched using a standard Type 11 70 mm infantry mortar.
The BL 5.5 inch Gun was a British artillery gun introduced during the middle of the Second World War to equip medium batteries.
The Type 11 70 mm infantry mortar, was a muzzle-loading, rifled bore infantry mortar used by the Japanese. The Type 11 designation was given to this gun as it was accepted in the 11th year of Emperor Taishō's reign (1922). It was first used in 1922 and was the first mortar to be introduced by the Imperial Japanese Army. The mortar was later replaced by the Type 92 battalion gun.
The M1 mortar is an American 81 millimeter caliber mortar. It was based on the French Brandt mortar. The M1 mortar was used from World War II until the 1950s when it was replaced by the lighter and longer ranged M29 mortar.
The Mark 12 5"/38 caliber gun was a United States naval gun. The gun was installed into Single Purpose and Dual Purpose mounts used primarily by the US Navy. On these 5" mounts, Single Purpose (SP) means that the mount is limited to 35° elevation with no provision for AA shell fuze setters, and is designed to fire at surface targets only. Dual Purpose (DP) means that it is designed to be effective against both surface and aircraft targets because it can elevate to 85° and has on mount AA shell fuze setters. The 38 caliber barrel was a mid-length compromise between the previous United States standard 5"/51 low-angle gun and 5"/25 anti-aircraft gun. United States naval gun terminology indicates the gun fired a projectile 5 inches (127 mm) in diameter, and the barrel was 38 calibers long, making the 5"/38 dual purpose midway in barrel length between the 5"/51 surface-to-surface and the 5"/25 anti-aircraft guns. The increased barrel length provided greatly improved performance in both anti-aircraft and anti-surface roles compared to the 5"/25 gun. However, except for the barrel length and the use of semi-fixed ammunition, the 5"/38 gun was derived from the 5"/25 gun. Both weapons had power ramming, which enabled rapid fire at high angles against aircraft. The 5"/38 entered service on USS Farragut, commissioned in 1934. The base ring mount, which improved the effective rate of fire, entered service on USS Gridley, commissioned in 1937.
The AT2 mine is a scatterable anti-tank mine developed by Dynamit Nobel. It can be scattered from artillery rockets or from mine laying systems, and was used by the British, German and Norwegian armed forces until the signing of the Ottawa Treaty.
The M15 mine is a large circular United States anti-tank blast mine, first used during World War Two. Essentially, it is a larger version of the M6A2 anti-tank mine, which it replaced. Although the M15 has been superseded by the M19 mine, the U.S. retains large stocks of M15s because they are still regarded as reliable and effective weapons. When used against main battle tanks the M15 is primarily a "track-breaker" which creates mobility kills, but has a comparatively small likelihood of causing crew fatalities. However, when used against lighter vehicles such as APCs or unarmored vehicles such as trucks the damage inflicted is much more severe.
TM-62 is the designation for a series of Soviet anti-tank blast mines. The mines have a central fuze and typically have a 7.5 kg explosive charge, however they vary greatly in detail. The mines can be laid manually or automatically from a mine laying machine including the PMR-1, PMR-2 wheeled towed mine layers, the GMZ tracked mine laying vehicle and the VMR-2 helicopter mine laying system.
The Type 93 mine was a circular Japanese landmine used during the Second World War. It entered service in 1933. It used a simple fuze with a variable activation pressure, achieved through the use of different thickness shear wires. The main charge could be supplemented with additional explosives buried under the mine.
The Type 99 (Hako-Baku-Rai) mine was a Japanese anti-tank weapon used during the Second World War. It entered service in 1939. Four magnets were attached to the casing made of hemp cloth, along with an external fuze. The fuze had a time delay, which enabled it to be used as an anti-tank hand grenade, or a demolition charge. Once the safety pin was removed, it was armed, striking the fuze ignited a powder delay train. The mine detonated after a five to ten seconds delay, giving enough time for it to be thrown.
The TM-38 was a rectangular, metal-cased Soviet anti-tank mine used during the Second World War. The mine had a large raised rectangular central pressure plate with four reinforcing creases. When enough pressure was applied to the plate it collapses pressing down on a bolt connected to an internal lever. The lever is pulls a retaining pin from the MUV fuze, which releases the striker, which impacts the MD-2 detonator.
The T-IV was a Soviet anti-tank mine developed before and used during the Second World War. The mine has a metal case with a wooden pressure plate attached to the top of the mine. It is similar in configuration to the later TM-38
The Mark II mine or A./T. Mine G.S. Mk II was a British anti-tank blast mine used during the Second World War. It consisted of a body about seven inches (18 cm) in diameter and two inches high (5 cm). The mine has a central fuze well accessed from the bottom, with a main charge in a cavity around the well consisting of about 4 pounds (1.8 kg) of TNT. The mine is fitted with a thin brass cover, which acts as a pressure plate. The cover is suspended over the main body of the main by four leaf springs. A Sorbo ring made of Sorbo rubber can be fitted between the cover and the mine body, which absorbs shock and blast and allows the mines to be planted as close as two feet (61 cm) without causing sympathetic detonation.
The CC 48 is an Italian wooden cased minimum metal anti-tank mine that was used during the Second World War. The mine uses a shaped TNT explosive charge to produce a directional cutting effect. The mine uses two PMC/43 fuzes, but these can be replaced with PMC/42/2 anti-personnel fuzes, combined with weakening the lid this can make it sensitive enough to be detonated by the weight of a mine.
The Mk 4 mine or Mine G.S. Mk IV was a British anti-tank mine used during World War II. Externally the mine has a cylindrical main body filled with explosive either TNT or Baratol. The mine is covered by a pressure plate, which is attached to the mine body by four pins which sit in vertical slots in clips that fold up from the bottom of the mine. The mine uses the Shear-pin based Contact Mine Fuze No.3 Mk I. The fuze consists simply of a spring-loaded striker pin restrained by a shear pin. Sufficient pressure on the pressure plate presses the plate down on the head of the fuze, breaking the shear wire and releasing the striker, which is driven into the detonator by the striker spring.
In military munitions, a fuze 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.
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