Type 63 light tank

Infobox Weapon
name=Type 63


caption=Chinese Type 63-I tank at the China People's Revolution Military Museum.
origin=People's Republic of China
type=Amphibious light tank
is_vehicle=yes
spec_label=Type 63-I
service=1963 – present
used_by=See Operators
wars=See Combat History
designer= Military Engineering Institute (MEI) and the No. 60 Research Institute of Fifth Ministry of Machine Building
design_date=1960 - 1963
manufacturer=Norinco
Factory 615 Shaanxi Weiyang Diesel Engine Plant (陕西渭阳柴油机厂)
and Factory 256 Southwest Vehicles Factory (西南车辆制造厂)
production_date=1963 - ? (ended)
number=More than 1,550
variants=See Variants
weight=19.83 tonnes
length=8.44 m"Czołgi Świata" (World's Tanks or Tanks Of The World) magazine issue 17]
7.15 m (hull only)
width=3.2 m
height=3.122 m (with the AA HMG) [http://www.inetres.com/gp/military/cv/tank/Type63.html "Gary's Combat Vehicle Reference Guide"] ]
2.522 m (without the AA HMG)
crew=4 (commander, gunner, loader, driver)
armour=Welded rolled steel
11 mm hull front
14 mm hull upper side
10 mm hull rear
10 mm hull bottom
10 mm hull top
primary_armament=85 mm Type 62-85TC rifled gun (47 rounds)
secondary_armament=7.62 mm Type 59T coaxial medium machine gun (2,000 rounds)
12.7 mm Type 54 anti-aircraft heavy machine gun (500 rounds)
7.62 mm Type 59T anti-aircraft medium machine gun (optional)
engine=12150L-2 12-cylinder liquid-cooled diesel
engine_power= 402 hp (300 kW) at 2,000 rpm
transmission=Manual, planetary
fuel_capacity=545 litres
pw_ratio=20.3 hp/tonne (15.1 kW/tonne)
suspension=torsion bar
clearance=400 mm
vehicle_range=370 km (road)
340 km (cross country)
120 km (water)
speed= 64+ km/h (road)
30+ km/h (cross country)
12 km/h (water)

The Norinco Type 63 is a Chinese amphibious light tank. First fielded in 1963, it is in many ways similar to the earlier Soviet PT-76. However contrary to the popular belief it has some essential differences from the PT-76 in the vehicle's waterjet propulsion system etc. It is also known under its industrial designation, WZ211.

Development history

The Chinese obtained a few PT-76 amphibious light tanks in mid 1950s. In October 1958, the PLA decided to develop an indigenous amphibious tank based on the PT-76 design. The development program was carried out by 201 Institute and the 615 Factory. A prototype known as WZ221 (Type 60) was built and tested in 1959, but the design suffered from a number of problems including engine overheating. The PLA wasn't satisfied with the performance of the vehicle, which led to the development of an improved version. It was jointly developed by Military Engineering Institute (MEI) and the No. 60 Research Institute of Fifth Ministry of Machine Building. The prototype was completed in 1962 and was sent to Norinco Factory 615, the Shaanxi Weiyang Diesel Engine Plant (陕西渭阳柴油机厂), for continued research. After it later passed the extensive trials (mostly dealing with crossing river, lake and sea water obstacles), the amphibious light tank was finally approved for design finalization in April 1963, and was officially designated Type 63. [http://www.sinodefence.com/army/tank/type63.asp "Sino Defense"] ] [http://www.globalsecurity.org/military/world/china/type-63-t.htm "Global Security"] ]

Because of continuing tension with Taiwan, the PRC felt the need to upgrade its fleet of amphibious tanks as the original Type 63 was rapidly becoming obsolete and incapable of facing modern tanks. To prepare for a possible amphibious assault on Taiwan Island, the PLA requested a new amphibious tank that can be launched from tank landing ships over 10 kilometres offshore and reach the shore at a high swimming speed of 14 kilometres per hour. This improved mobility would reduce the risk to PLA Navy ships from enemy missiles, aircraft, ships, speedboats and mines and increase the survivability of the tank in the amphibious assault stage. The new version was designated Type 63A. [http://www.abovetopsecret.com/forum/thread138818/pg1 "Above Top Secret"] ]

Description

Type 63 has a typical tank layout: steering compartment at the front, fighting compartment in the center and the engine compartment in the back. Although it is externally similar to PT-76 it has some essential differences from its Soviet equivalent. Instead of a three-man crew on the PT-76, the Type 63 has a four-man crew for better efficiency. Unlike in the PT-76 where the driver's station is located in the center of the front of the hull, the type 63 has the driver's station located on the left hand side of the front of the hull. The driver has a round hatch with three periscope vision blocks over his station. Gunner and commander have their stations in the left hand side of the turret and the loader has his in the right hand side of the turret. The turret has two hatches. The right turret hatch opens backwards and has a mount for 12.7 mm Type 54 anti-aircraft heavy machine gun. The left turret hatch opens forwards, has a periscope vision block and can be fitted with the 7.62 mm Type 59T anti-aircraft medium machine gun. There's a dome-shaped ventilator behind the hatches. The tank is wider and higher than PT-76. The Type 63 has a flat, boat-like hull similar to the design of the PT-76, apart from a nearly horizontal glacis plate, higher gradient of the bottom of the bow, different engine grills with three separate vertical slot side air inlets on the Type 63, in contrast to the single large inlet with inset vertical baffle plate on the PT-76. There's also a slight bulge in the center of each side of the hull (hull sides in PT-76 are smooth). Also the tracks are mounted higher and the roadwheels are bigger. The half-egg-shape, cast turret, which is sometimes considered to be a modified Type 62 turret, is actually a modified Type 60 turret. It is placed in the center of the vehicle (unlike in PT-76 which has the turret closer to the front of the vehicle) and has a ventilator dome with a snorkel fitting. Apart from his usual duty of reloading the gun after it has been fired by the gunner, the loader is also responsible for operating the 12.7 mm Type 54 anti-aircraft heavy machine gun mounted on the turret's roof.

The weapons array consists of the 85 mm Type 62-85TC rifled gun, the 7.62 mm Type 59T coaxial medium machine gun and the 12.7 mm Type 54 anti-aircraft heavy machine gun which is a Chinese copy of Soviet 12.7 mm DShK 1938/46 heavy machine gun. Also a 7.62 mm Type 59T anti-aircraft medium machine gun can be additionally fitted to left hand side turret hatch. 85 mm Type 62-85TC rifled gun is the same gun as the one fitted in Type 62 light tank and can fire AP, APHE, HE, Frag-HE, HEAT, APFSDF-T and smoke rounds. The gun has maximum range of 12,200 m and maximum aimed range of 1,870 m and has a rate of fire of eight round per minute. The HEAT projectile can penetrate 495 mm of armour at 1,000 m while the APFSDF-T projectile can penetrate 360 mm of armour at 1,000 m. The gun is not stabilized and is aimed via an optical gun sight. It can be elevated or depressed between +22 and -4 degrees. The Type 63 amphibious light tank is characterized by having poor accuracy, given the primitive optical gun sights that the gunner has to use and lack of a gun stabilizer, a fire control system and a night vision equipment. Type 63 amphibious light tanks are also equipped with a man-portable anti-aircraft missile launcher which is fired by a crew member standing in one of the turret hatches. Type 63 cannot fire its main gun while it swims due to the lack of fire control system. The vehicle carries 47 rounds for the 85 mm Type 62-85TC rifled gun, 2000 rounds for the 7.62 mm Type 59T medium machine gun(s) and 500 rounds for the 12.7 mm Type 54 anti-aircraft heavy machine gun. [http://www.jedsite.info/tanks-tango/tango-type/type-63_series/type63-series.html "JED The Military Equipment Directory"] ]

The hull of the Type 63 is composed of welded rolled steel. The hull is 11 millimetres thick at the front, 14 millimetres thick at the upper sides and 10 millimetres thick at the rear. The top and bottom of the hull are both 10 millimetres thick. This gives it protection against 7.62 mm calibre small arms fire and small artillery shell fragments, but it is not sufficient to protect from either heavy machine gun fire and bigger artillery shell fragments. The tracks aren't protected by any armour and are easily damaged.

The torsion bar suspension consists of six road wheels with the drive sprocket at the rear and the idler at the front. The suspension doesn't have return rollers. The track is composed of metal and is 2.82 meters long. The first limited production variant of Type 63 was powered by the same 6 cylinder 4 stroke in line water cooled diesel engine developing 241 hp (180 kW) at 1800 rpm as the one used in early Type 60 amphibious light tank. The second production run, designated Type 63-I, was given the more powerful 12150L-2 12-cylinder liquid-cooled diesel engine, which developed 402 hp (300 kW) at 2,000 rpm. The more powerful engine gave the Type 63-I a maximum road speed of 64 kilometres per hour and a maximum cross country speed of 30 km/h. The Type 63 can cross 2.9 meter wide trenches and 0.87 meter high vertical obstacles, as well as climb 60° gradients and handle 38° side slopes. The vehicle has a manual, planetary transmission system with five forward gears and one reverse gear. The tank can fitted with additional fuel tanks to increase vehicle's operational range. [ [http://www.fas.org/man/dod-101/sys/land/row/type-63-dprk.htm Type-63 light amphibious tank ] ]

Type 63 is amphibious thanks to its flat boat-shaped hull. Preparation for swimming involves switching on the bilge pumps, erecting the trim vane at the front of the vehicle and switching the driver's periscope vision blocks for a swimming periscope vision block that enables the driver to see over the trim vane. The trim-vane improves the vehicle's stability and displacement in water and prevents water from flooding the bow of the tank. When not in use the trim vane is placed in its laying position in the front of the bow over the barrel of the main gun and serves as additional armour. Like the PT-76 it is propelled in the water by two water jets, one in each side of the hull, with the jet exits at the rear of the tank, however it has its entrances located in the front of the vehicle and not in the bottom as in case of PT-76. Unlike the PT-76, Type 63 also uses its moving tracks to swim. The waterjet propulsion system gives it the maximum swimming speed of 12 kilometres per hour and top swimming range of 120 kilometres. [http://www.militaryfactory.com/armor/detail.asp?armor_id=173 "Military Factory"] ]

Type 63 is equipped with an A-221A internal telephone and A-220A receive/transmit radio for which it has a radio antenna on the left hand side of the center of the turret. It also has two IR driving lights on the right hand side of the hull and an IR searchlight on the right hand side of the turret.

ervice History

Type 63 entered production and service in 1963. The initial production variant was quickly replaced by the Type 63-I which had a more powerful engine, the Model 12150-L2 12-cylinder liquid-cooled diesel engine. In all more than 1,550 Type 63 and Type 63-I amphibious light tanks were made. The tank was designed to operate in the wetland regions and rice paddy fields of southern China (duties also performed by the earlier non-amphibious Type 62 light tank). The Type 63 was intended for inland river and lake crossing operations and amphibious landing in the coastal regions and can swim long distances in harsh sea conditions at high speeds. It can also support infantry in the attack and engage lightly armoured vehicles and fortifications. It can also be used in reconnaissance and patrol roles.

Later the tank was also adopted by the People's Liberation Army Marine Corps for the amphibious assault operations along with various other amphibious units stationed near the Taiwan straits. Some Type 63 and Type 63-I amphibious light tanks were upgraded to Type 63-II standard in the 1970s. The original Type 63 and Type 63-I amphibious light tanks has been gradually phased out since the late 1990s and replaced by the more capable Type 63A which entered service in 1997. The PRC currently has an estimated number of 800 of both types, though only around 300 of these are Type 63A, Type 63A-I and Type 63A-II, the remainder being Type 63-II and old Type 63 and Type 63-I amphibious light tanks. The original Type 63 and Type 63-I amphibious light tanks are kept in reserve and for training purposes. Because the Type 63A was mostly designed for amphibious operations against Taiwan, it is presumed that it would be the basic vehicle used in an amphibious invasion of Taiwan Island.

The Type 63 was exported to Albania, Pakistan, Myanmar, Cambodia, Sri Lanka, North Korea and Vietnam. It saw action during the final phases of the Vietnam war, the Sino-Vietnamese War and the Sri Lankan Civil War. By all accounts, the Type 63 showed great mobility in terrains that are difficult for the heavy tanks, but its thin armour has caused heavy losses and casualties.

Combat History

* 1959 - 1975 Vietnam war
* 1979 Sino-Vietnamese War
* 1983 – present Sri Lankan Civil War

Models

Variants

* Type 63 - Basic amphibious light tank with half-egg-shape turret, armed with 85 mm Type 62-85TC rifled gun and powered by the 6 cylinder 4 stroke in line water cooled diesel engine developing 240 hp (179 kW) at 1800 rpm from the Type 60 amphibious light tank. It entered service in 1963 and produced in small numbers. The industrial designator is WZ211.
** Type 63-I - Type 63 fitted with a new 12150-L2 12-cylinder liquid-cooled diesel engine developing 402 hp (300 kW) at 2,000 rpm. The industrial designator is WZ211-1.
*** Type 63-II - Type 63-I fitted with the infrared night vision equipment and Norinco external laser rangefinder which is the same laser rangefinder as the one fitted on Type 59-I main battle tank. This update was made in 1970s. The industrial designator is WZ211-2.
**** Type 63A - Improved Type 63-II. It was specially designed to suit the needs of the marines. Unlike the original Type 63 which was mainly intended for river-crossing operations at inland rivers and lakes, the Type 63A can be launched from amphibious warfare ships 5 - 7 km offshore and travel to the shore with the speed of 28 km/h (which was accomplished thanks to the new engine and redesigned water jet system). It has a new diesel engine developing 581 hp (433 kW) and computerized fire control system which gives it the capacity to shoot while it is on the move on land and on water. Type 63A has a redesigned welded turret with four smoke grenade dischargers on each side of the turret, a stowage bucket in the rear of the turret and two stowage buckets on the sides of the turret. The turret was armed with 105 mm rifled gun instead of the original 85 mm Type 62-85TC rifled gun. It is similar to those that are fitted on the Type 59-II, Type 59D, Type 69 and Type 80 main battle tanks but with reduced recoil force for firing while the vehicle is swimming. It is capable of firing all types of modern tank rounds, such as armour piercing fin-stabilized discarding sabot (APFSDS), HEAT and HE. It also has two extra floating tanks (one in the front and one in the rear) that provide better stability while in water, an improved snorkel fitting and three water inlets on either side of the hull. The tank also has side skirts protecting the tracks. To allow the tank to fire accurately while in water the 105 mm was given the ability to shoot laser-beam guided ATGM. The PRC has developed a 105 mm gun-launched ATGM based on the Russian 9M117 Bastion technology. The missile has a maximum firing range of 4,000 m - 5,000 m, with a single hit probability of over 90% against static targets. The ATGM can also be used to engage low-flying helicopters. The new fire control system includes a digital fire-control computer, integrated commander sight with laser rangefinder input, and light spot or image-stabilized gunner sight with passive night vision. The standard night vision is an image intensifier. Alternatively the gunner sight can be fitted with a thermal imager night vision with a maximum range of 2,100 meters. The tank is also equipped with the satellite positioning (GPS/GLONASS) system so that it can easily locate the correct landing coordinates in all kinds of weather and at day or night conditions. Because of the additional equipment the weight of the vehicle has increased to 22 tonnes and because of the two extra floating tanks (one in the front and one in the rear) and the longer gun, the overall length of the vehicle has increased to 9.6 meters. Type 63A was designed because of continuing tension with Taiwan and as such it can face Taiwanese M48 and M60 Patton main battle tanks when it has the upper hand. While its thin armour is still a rather big issue the Type 63A has the ability to attack its targets before being directly engaged by using ATGMs. It entered service in 1997. The industrial designator is WZ213. It is also known as Type 63M, Type 99 and ZTS-63A.
***** Type 63A-I - Type 63A fitted with a bow extension, bigger side skirts which cover the tracks more and attachments points for additional armour on the front of the turret (possibly ERA). It is also known by industrial designator, WZ213-1. It is also known as ZTS63A-1.
****** Type 63A-II - Type 63A-I bolt mounts for additional armour all over the turret and hull sides. It is also known by industrial designator, WZ213-2. It is also known as ZTS63A-2.
*** Type 63HG (HG stands for "Hai Gai" - "Further Improved") - Prototype vehicle with improved amphibious capabilities. It has a rounded bow nose extension. The hull was enhanced to improve the vehicle's performance while it's swimming at long distances from the amphibious assault ships to the shore. It also has a new 105 mm rifled gun instead of the original 85 mm Type 62-85TC rifled gun. It is similar to those that are fitted on the Type 59-II, Type 59D, Type 69 and Type 80 main battle tanks but with reduced recoil force for firing while the vehicle is swimming. It is capable of firing all types of modern tank rounds, such as armour piercing fin-stabilized discarding sabot (APFSDS), HEAT and HE. The turret was modified to accommodate the new armament. The cast turret retains its half-egg-shape while three stowage buckets have been added on both sides of the turret and on the rear of the turret. It was made in mid-1990s. It is also known as the Type 63G where G stands for "Gai" - "Improved".
*** Type 77 - Chinese tracked amphibious APC based on the Type 63-I amphibious light tank. Although not a clone of the BTR-50, the Type 77 has similar hull shape and layout. The industrial designator is WZ511.
**** Type 77-1 - amphibious armoured personnel/artillery carrier designed to carry a disassembled gun (85 mm towed anti-tank gun or 120 mm towed howitzer) on the roof. The vehicle has hydraulic winch and ramps to load/unload the gun. The industrial designator is WZ511-1.
**** Type 77-2 - amphibious armoured personnel carrier. No winch and ramps. The industrial designator is WZ511-2.
**** Type 76 ARV - recovery vehicle.
**** Type 89 - Type 77 converted into a self-propelled howitzer armed with 122 mm gun. Although most vehicles were based on Type 77 APCs, some vehicles were based on Type 63-I amphibious light tanks.

Operators

* - 200
* -
* - More than 150.
* -
* -
* - 1,200 in 1985, 1990, 1995 and 2000. As of now there are 800 of those vehicles in service (About 500 Type 63, Type63-I and Type 63-II and over 300 Type 63A, Type 63A-I and Type 63A-II). [ [http://www.globalsecurity.org/military/world/china/pla-inventory.htm People's Liberation Army ] ]
* -
* -
* -

References

External links

* http://www.sinodefence.com/army/tank/type63.asp
* http://www.sinodefence.com/army/tank/type63a.asp
* http://www.militaryfactory.com/armor/detail.asp?armor_id=173
* http://www.strategypage.com/htmw/htarm/articles/20041011.aspx
* http://www.globalsecurity.org/military/world/china/type-63-t.htm


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