The Kanchan Armour is the name informally given to a modular

composite armour Composite armour is a type of vehicle armour consisting of layers of different material such as metals, plastics, ceramics or air. Most composite armours are lighter than their all-metal equivalent, but instead occupy a larger volume for the sa ...

developed by

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

. The armour got its name from Kanchan Bagh,

Hyderabad Hyderabad ( ; , ) is the capital and largest city of the Indian state of Telangana and the ''de jure'' capital of Andhra Pradesh. It occupies on the Deccan Plateau along the banks of the Musi River, in the northern part of Southern India ...

Telangana Telangana (; , ) is a state in India situated on the south-central stretch of the Indian peninsula on the high Deccan Plateau. It is the eleventh-largest state and the twelfth-most populated state in India with a geographical area of and 3 ...

, where the

Defence Metallurgical Research Laboratory Defence Metallurgical Research Laboratory (DMRL) is a research laboratory of the Defence Research and Development Organisation (DRDO). Located in Defence Research Complex, Kanchanbagh, Hyderabad. It is responsible for the development and manufa ...

(DMRL) is located. Although the construction details of the armour remain a secret, it has been described as being made by sandwiching composite panels between

rolled homogeneous armour Rolled homogeneous armour (RHA) is a type of vehicle armour made of a single steel composition hot-rolled to improve its material characteristics, as opposed to layered or cemented armour. Its first common application was in tanks. After World ...

(RHA). The number of layers may vary based on the user requirements. This armour is able to defeat

armour-piercing discarding sabot Armour-piercing discarding sabot (APDS) is a type of spin-stabilized kinetic energy projectile for anti-armour warfare. Each projectile consists of a sub-calibre round fitted with a sabot. The combination of a lighter sub-calibre projectile wi ...

(APDS) and

high-explosive anti-tank warhead High-explosive anti-tank (HEAT) is the effect of a shaped charge explosive that uses the Munroe effect to penetrate heavy armor. The warhead functions by having an explosive charge collapse a metal liner inside the warhead into a high-velocity ...

(HEAT) rounds and is known to defeat

armour-piercing fin-stabilized discarding sabot Armour-piercing fin-stabilized discarding sabot (APFSDS), long dart penetrator, or simply dart ammunition, is a type of kinetic energy penetrator ammunition used to attack modern vehicle armour. As an armament for main battle tanks, it succeeds ...

(APFSDS).Kanchan armor
frontierindia.net This armour is lightweight and compact. A new

honeycomb structure Honeycomb structures are natural or man-made structures that have the geometry of a honeycomb to allow the minimization of the amount of used material to reach minimal weight and minimal material cost. The geometry of honeycomb structures ca ...

design of non-explosive and non-energetic reactive armour (NERA) is reportedly being tested on Arjun tanks.

History

During development in the 1980s, Kanchan armour defeated a 106 mm recoilless rifle which was tried on the Arjun Tank. During trials in 2000, the armour was able to withstand hits from

T-72 tank The T-72 is a family of Soviet/Russian main battle tanks that entered production in 1969. The T-72 was a development of the T-64, which was troubled by high costs and its reliance on immature developmental technology. About 25,000 T-72 tanks ...

at point blank range, and defeated all available

high-explosive squash head High explosive squash head (HESH) in British terminology, or high explosive plastic/plasticized (HEP) in American terminology, is a type of explosive projectile which uses a plastic explosive that conforms to the surface of a target before deton ...

(HESH) and APFSDS rounds, which included Israeli APFSDS rounds. The Kanchan is also being used on Vijayanta tanks.

Protection

Upon impact of a projectile, the armor will — ideally — prevent penetration via

compression Compression may refer to: Physical science *Compression (physics), size reduction due to forces *Compression member, a structural element such as a column *Compressibility, susceptibility to compression * Gas compression *Compression ratio, of a ...

and decompression methods. As the projectile hits the armour, it faces compression because of the RHA, and then it faces decompression because of the composite. When the projectile passes through several such sandwiched layers, it breaks up those projectiles.

Composition

In the 1980s the Kanchan composite had a composition of

ceramic A ceramic is any of the various hard, brittle, heat-resistant and corrosion-resistant materials made by shaping and then firing an inorganic, nonmetallic material, such as clay, at a high temperature. Common examples are earthenware, porcelain ...

, aluminium oxide,

fibreglass Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass clo ...

and some other such materials mixed. The Kanchan composite tried out had two thicknesses, i.e. a plate and a plate. However these two plates had the same weight as a RHA. Hence it is said that Kanchan armour is more volume at same weight. Anti-tank munitions have problems in penetrating such materials. Kanchan armour composition has undergone massive changes since the 1980s. The volume of the RHA has been reduced to lesser mass because of better metallurgy. The composite has evolved too and it does not use the 1980s technology any more.

References

{{DEFAULTSORT:Kanchan Armour Vehicle armour