Tilt-rod fuze

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Cross sectional view of an M15 mine with standard M603 fuze, plus the same mine with an M624 tilt rod fuze installed M15 mine diagram.jpg
Cross sectional view of an M15 mine with standard M603 fuze, plus the same mine with an M624 tilt rod fuze installed
Russian TM-57 mine with a tilt-rod fuze TM-57 held with tilt fuze.jpg
Russian TM-57 mine with a tilt-rod fuze

A tilt-rod fuze is a device used to trigger anti-vehicle landmines. Typically it consists of a vertical pole, normally around a meter high, which is connected to the top of a landmine. When the track or main body of a vehicle passes over the mine, the rod is tilted, releasing a spring-loaded striker which triggers a pyrotechnic delay of approximately half a second, followed by detonation of the main explosive charge. The small time delay allows the vehicle to continue over the mine before detonating, exposing more of it to the blast. A tilt-rod fuze has a number of advantages over pressure fuzesit acts across the entire width of a vehicle, rather than just its tracks or tires. [N 1] This allows it to attack the vehicle's belly and potentially cause a catastrophic kill. [1] Additionally, tilt rod fuzes tend to be resistant to blast overpressure clearing methods, which can trigger most pressure fuzes.


The main disadvantage is the visible rod mechanism, which may be negated by laying the mine in undergrowth. In any case, minefields containing anti-tank mines with tilt rods may also include other designs of mine which are entirely buried (e.g. the M19 anti-tank mine) plus various antipersonnel mines intended to hinder people removing mines.


  1. For this reason, a mine fitted with a tilt-rod is often referred to as a "full width attack" mine.

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Land mine Explosive weapon, concealed under or on the ground

A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. Such a device is typically detonated automatically by way of pressure when a target steps on it or drives over it, although other detonation mechanisms are also sometimes used. A land mine may cause damage by direct blast effect, by fragments that are thrown by the blast, or by both.

Anti-tank mine Type of land mine designed to destroy tanks

An anti-tank mine is a type of land mine designed to damage or destroy vehicles including tanks and armored fighting vehicles.

Tellermine 43

The Tellermine 43 was a German circular steel cased anti-tank blast mine used during the Second World War. It was a simplified version of the Tellermine 42, which enabled simpler production techniques. Between March 1943 and the end of World War II, over 3.6 million Tellermine 43s were produced by Germany. Copies of the mine were produced by several countries including Denmark (M/47), France and Yugoslavia (TMM-1).

The L9 bar mine is a large rectangular British anti-tank landmine. The bar mine's principal advantage is its long length, and therefore its trigger length. A typical anti-tank landmine is circular, and a vehicle's wheels or tracks, which make up only a small proportion of its total width, must actually press on the mine to activate it. To increase the probability of a vehicle striking the mine, the mine's effective trigger width must be increased.

Anti-personnel mine Form of land mine designed for use against humans

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 PROM-1 is a Yugoslavian manufactured bounding anti-personnel mine. It consists of a cylindrical body with a pronged fuze inserted into the top of the mine. It is broadly similar in operation to the German S-mine.

TM-57 mine

The TM-57 mine is a large, circular Soviet metal-cased blast anti-tank mine. It can either be triggered by a pressure or a tilt-rod fuze. A development of the TM-46 mine, it is found in Africa, the Middle East, and South East Asia.

The PMN series of blast anti-personnel mines were designed and manufactured in the Soviet Union. They are one of the most widely used and commonly found devices during demining operations. They are sometimes nicknamed "black widow" because of their dark casings.

M15 mine

The M15 mine is a large circular United States anti-tank blast mine, first deployed during the Korean War. 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.

VS-50 mine

The VS-50 is a circular plastic cased anti-personnel blast mine that entered production in 1985, formerly manufactured by the now-defunct Valsella Meccanotecnica SpA, an Italian high-tech defence industry specialized in area denial systems which was also the manufacturer of the Valmara 69 and one of the first industries in the world to implement plastic construction for landmines. The design is similar to the TS-50 and VS-MK2 mine. It is blast resistant and can be used in a minimum metal configuration. Though unlikely to kill, the explosive charge contained within a VS-50 is quite sufficient to destroy the victim's foot: the blast is capable of penetrating 5 mm of mild steel leaving an 80 mm-diameter hole.

TM-62 Soviet anti-tank mine

The TM-62 is a Soviet anti-tank blast mine made in many variants. It has a central fuze and typically a 7.5 kilograms (17 lb) explosive charge, but the variants vary greatly in detail. The mine 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 TM-62 can be fitted with the same fuzes as the TM-72, which include MVN-72 and MVN-80 fuzes which are vibration and magnetism sensitive.

The PRB M3 and PRB M3A1 are plastic cased minimum metal anti-tank blast mine produced by the Belgian company Poudreries Réunies de Belgique in the 1970s and 1980s. The mine is square with an olive drab body constructed from polythene with a webbing carrying handle on the side and an ammonia-free bakelite seating for the pressure plate to be screwed into. The fuze well is in the centre of the seating, with the pressure plate screwed into it after the fuze has been inserted. The cylindrical pressure plate consists of two plastic plates, one of which moves under the weight of a vehicle driving over the mine to transmit the force to the fuze, shearing pins which hold it in place.

The Hohl-Sprung Mine 4672 or Hohlladungs-Spring-Mine 4672 was a German anti-tank mine, together with the Panzer stab 43. Developed during the Second World War it was the first landmine to combine a shaped charge anti-tank warhead with a tilt rod fuze.

The M21 is a circular United States anti-tank landmine that uses a Misznay Schardin effect warhead. The mine uses an M607 pressure fuse, which can be adapted as a tilt rod fuze. The mine is triggered either by pressure, or by the tilt rod being forced beyond 20 degrees from the vertical by a force of more than 1.7 kg, either of these actions results in pressure being transferred via a bearing cap to a Belleville spring, which inverts, driving the firing pin into the M46 detonator. The M46 charge first ignites a black powder charge, which blows off the mine's cover, and clears any earth or debris that may have been on top of the mine. A fraction of a second later the main warhead detonates, driving and compressing a steel plate upwards, with enough force to penetrate 76 mm of armour at a distance of 530 mm. Approximately 200,000 M21 mines were produced in the U.S. and licensed copies, the K441 and K442, were produced in South Korea.

The Mk 7 mine was a circular British anti-tank blast mine. It replaced the World War 2-era Mk 5 mine, and has in turn been replaced by the L9 bar mine.

Blast resistant mine

A Blast resistant mine is a landmine with a fuze which is designed to be insensitive to the shock wave from a nearby explosion. This feature makes it difficult or impossible to clear such mines using explosive minefield breaching techniques. As a result, the process of clearing minefields is slower and more complex. Blast resistance can be achieved in a number of ways.

The Adrushy is an Indian glass-reinforced, plastic-cased anti-tank landmine.

The MC-71 is a Romanian tilt-rod fuzed anti-tank landmine. The mine's body consists of two truncated cones, the lower of the cones contains the main charge and fuzing mechanism. The main charge is a large shaped charge, which triggers 200 ms to 400 ms after the tilt rod is activated. The tilt rod can be deployed away from the mine, potentially making it effective against clearance vehicles using mine rollers and mine flails.

Anti-handling device Component of a munition

An anti-handling device is an attachment to or an integral part of a landmine or other munition such as some fuze types found in general-purpose air-dropped bombs, cluster bombs and sea mines. It is designed to prevent tampering or disabling, or to target bomb disposal personnel. When the protected device is disturbed, it detonates, killing or injuring anyone within the blast area. There is a strong functional overlap of booby traps and anti-handling devices.

The TMK-2 is a Soviet steel cased anti-tank mine. It uses a tilt-rod fuze combined with a shaped charge to attack the belly of vehicles as they pass over the mine. It was originally designed in 1955, but is now obsolete. The mine consists of a case shaped like two truncated cones joined at the base. The MVK-2 tilt rod assembly is held to one side of the mine. The lower truncated cone contains the main charge, and dished metal charge liner.


  1. Barrett Hazeltine; Christopher Bull (2003). Field Guide to Appropriate Technology. Academic Press. p. 853. ISBN   9780123351852.

See also