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Type 72 non-metallic anti-tank mine

Type 72 Non-Metallic is a Chinese circular, plastic bodied landmine which is designed to damage or destroy a vehicle by blast effect.

Mechanism edit

The mine has a slightly domed pressure plate made from flexible plastic with a raised 6 spoke wagon wheel pattern on top. Type 72 has a telescopic carrying handle molded into the bottom of the mine and a large diameter filler plug on the side just above the handle position. The mine has a crimp around the top edge where the mine body meets the pressure plate. The mine contains 5.4 kg of 50:50 RDX/TNT and is actuated when pressure of 300 kg deforms the flexible plastic pressure plate long enough to release the cocked striker fuze. When the pressure plate is moved approximately 9 mm downwards it exerts pressure on the fuze. If fuzed with the T-72 clear plastic-cased blast resistant fuze, pressure on the top of the fuze will depress the casing which will revolve due to the depression of the spring which is attached to the casing. The revolution is controlled by lugs on the inner fuze assembly which fit in grooves in the fuze casing. When the fuze casing is revolved and depressed sufficiently, the two retaining balls to will fall away in groove in the outer casing, which releases the striker. The striker is driven down by the spring, initiating the detonator, which in turn initiates the booster and the main charge. The mine is blast resistant since rapid depression of the fuze will push the fuze casing straight down without any revolution. The lugs on the inner fuze assembly will then slide into vertical groves instead of the diagonal ones. The striker retaining balls will then be prevented from coming in line with the groves in the outer casing and the striker will not be released. Instead the pressure plate will bounce back into its original position.

Similar Landmines edit

Two similar plastic bodied AT mines manufactured in China are the Type 69 and the Type 81, although it is entirely possible that there is no difference between the Type 69, Type 72 and Type 81 mines other than their fuzes. The basic descriptions (dimensions, weights, appearance, colour) for Type 69 and Type 81 mines match the Type 72 very closely. The fuzes are all blast resistant and the mine name may only vary depending on the fuze used.

Because of its low metal content, the Type 72 cannot be located using metal detectors under most field conditions. The Type 72 is resistant to shock and overpressure from explosive breaching systems such as the Giant Viper and MICLIC.

A copy of the mine, the YM-III (sometimes YM-3), is produced in Iran. It is slightly heavier at 7 kg, with a slightly heavier 5.7 kg Composition B main charge, with a slightly higher activation pressure of 450 to 900 kg. Additionally, a copy is produced in South Africa as "Non-metallic anti-tank mine".

Specifications edit

  • Weight: 6.5 kg
  • Explosive content: 5.4 kg of TNT/RDX in a 50/50 mix
  • Diameter: 270 mm
  • Height: 100 mm
  • Operating pressure: 300 to 800 kg

Countries found in edit

References edit

  • Canadian Forces Landmine Database, Canadian National Defense website
  • King, Colin (ed.). Jane's Mine and Mine Clearance 2005–2006. Coulsdon: Jane's Information Group, 2005. ISBN 978-0-7106-2701-8.
  • [1], ORDATA Online Entry: TYPE 72 (AT) `non-metallic'

type, metallic, anti, tank, mine, type, metallic, chinese, circular, plastic, bodied, landmine, which, designed, damage, destroy, vehicle, blast, effect, contents, mechanism, similar, landmines, specifications, countries, found, referencesmechanism, editthe, m. Type 72 Non Metallic is a Chinese circular plastic bodied landmine which is designed to damage or destroy a vehicle by blast effect Contents 1 Mechanism 2 Similar Landmines 3 Specifications 4 Countries found in 5 ReferencesMechanism editThe mine has a slightly domed pressure plate made from flexible plastic with a raised 6 spoke wagon wheel pattern on top Type 72 has a telescopic carrying handle molded into the bottom of the mine and a large diameter filler plug on the side just above the handle position The mine has a crimp around the top edge where the mine body meets the pressure plate The mine contains 5 4 kg of 50 50 RDX TNT and is actuated when pressure of 300 kg deforms the flexible plastic pressure plate long enough to release the cocked striker fuze When the pressure plate is moved approximately 9 mm downwards it exerts pressure on the fuze If fuzed with the T 72 clear plastic cased blast resistant fuze pressure on the top of the fuze will depress the casing which will revolve due to the depression of the spring which is attached to the casing The revolution is controlled by lugs on the inner fuze assembly which fit in grooves in the fuze casing When the fuze casing is revolved and depressed sufficiently the two retaining balls to will fall away in groove in the outer casing which releases the striker The striker is driven down by the spring initiating the detonator which in turn initiates the booster and the main charge The mine is blast resistant since rapid depression of the fuze will push the fuze casing straight down without any revolution The lugs on the inner fuze assembly will then slide into vertical groves instead of the diagonal ones The striker retaining balls will then be prevented from coming in line with the groves in the outer casing and the striker will not be released Instead the pressure plate will bounce back into its original position Similar Landmines editTwo similar plastic bodied AT mines manufactured in China are the Type 69 and the Type 81 although it is entirely possible that there is no difference between the Type 69 Type 72 and Type 81 mines other than their fuzes The basic descriptions dimensions weights appearance colour for Type 69 and Type 81 mines match the Type 72 very closely The fuzes are all blast resistant and the mine name may only vary depending on the fuze used Because of its low metal content the Type 72 cannot be located using metal detectors under most field conditions The Type 72 is resistant to shock and overpressure from explosive breaching systems such as the Giant Viper and MICLIC A copy of the mine the YM III sometimes YM 3 is produced in Iran It is slightly heavier at 7 kg with a slightly heavier 5 7 kg Composition B main charge with a slightly higher activation pressure of 450 to 900 kg Additionally a copy is produced in South Africa as Non metallic anti tank mine Specifications editWeight 6 5 kg Explosive content 5 4 kg of TNT RDX in a 50 50 mix Diameter 270 mm Height 100 mm Operating pressure 300 to 800 kgCountries found in editAngola Bosnia Herzegovina Cambodia China Eritrea Ethiopia Iraq Jordan Lebanon Mozambique Rwanda Somalia South Africa Sudan Uganda ZambiaReferences editThis article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help improve this article by introducing more precise citations December 2014 Learn how and when to remove this template message Canadian Forces Landmine Database Canadian National Defense website King Colin ed Jane s Mine and Mine Clearance 2005 2006 Coulsdon Jane s Information Group 2005 ISBN 978 0 7106 2701 8 1 ORDATA Online Entry TYPE 72 AT non metallic Retrieved from https en wikipedia org w index php title Type 72 non metallic anti tank mine amp oldid 930179292, wikipedia, wiki, book, books, library,

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