- Yes
- No
Hi, this is my first time suggesting something. The tank that I’m going to be suggesting is a Soviet T-64A mod. 1975. Compared to the 1971 model that we have in game, the 1975 modification received side skirts, top mounted machine gun, 12 smoke launchers and a 2A46-1 cannon.
Armament:
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main cannon: 2A46-1
Secondary weapons: 7.62mm pkt and 12.7mm nsvt machine guns
Smoke grenades: 12 pcs
Ammunition:
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3bm22 (APFSDS)
3of26 (HEF)
3bk12m (HEAT-FS)
Specifications:
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Crew: 3 people
Combat weight: 38.5t
Engine: 700hp opposed piston diesel engine
Top speed: ~61kph
Reverse: ~4kph
Height: 2170mm
Length: 6540mm
Width: 3415mm
(Translation: 1.2 main tactical and technical parameters, general data
Tank type mbt
Combat mass 38.5 tonnes
Crew size: 3 people
Power/weight ratio 18hp/tonne
Pressure kgs/cm2 0.84)
Development history:
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Object 430
The T-64A’s design started with a project named the object 430 in the early 1951. It created 3 prototypes which were tested in Kubinka in 1958.
(Object 430 prototype on display at the Kubinka Tank Museum in September 2008)
The soviets used an opposed piston engine for the project; the 4TD. The engine was paired with a transmission system that had 2 lateral gears on each side of the engine making the engine compartment shorter than of the T-62 's and T-55 's.
(This is not the 4TD, this is just an example how it looks in x-ray)
The tank also got an improved cooling system and new lightweight suspension, featuring hollow metallic wheels of a small diameter and caterpillar tracks with rubber joints. It was armed with with the D-54TS cannon and had a 120mm of frontal armor. The tank Wasn’t as good as the T-55 that was entering the service, which lead to a decision that it wasn’t ready for production. However the object 430U was armed with a 122mm cannon with 160mm of frontal armor. The project proved that it can carry the firepower and armor of a heavy tank on a medium tank chassis. Because of the proven point of the object 430U, a new project started: The object 432
Object 432
(Pictures of the object 432 from different angles)
A D-68 (2A21) 115mm cannon was installed on the object 432. An autoloader was designed to replace the human loader to reduce the size of the tank. With the autoloader fitted the crew size was reduced to 3 people. The size and weight was reduced; from 36 tonnes (object 430) to 30.5 tonnes. The height dropped by 76mm.
However, when the British 105mm L7 and american M68 were fitted on centurions and m60s, it forced the designer team to adopt composite armor on the object 432. The turret’s armor consisted of aluminum alloy between 2 high strength steel layers. The hull armor consisted of 80mm laminated steel, 2 52mm layers of fiberglass sheets and 20mm steel sheet.
The composite armor made the tank heavier (from 30.5 tonnes to 34 tonnes), which lead to the development of the 5TDF opposed piston engine. Compared to the 4TD, the newly designed 5TDF had the same build idea but made more horsepower (700hp). The tank’s production started at October 1963 in the kharkiv plant and entered service in December 1966 as the T-64.
T-64A
(Object 447 at the National Museum of the History of Ukraine in the Second World War, Kyiv, Ukraine)
Even though first T-64s were rolling off the assembly lines, the design team was working on a new version, named Object 434, which would allow it to maintain firepower superiority. A very newly developed 125mm D-81T cannon was fitted on the tank. The larger 125mm ammunition meant that less could be carried inside of the T64, which lead to a new developed autoloader to be fitted; the 6ETs10. The autoloader has 28 round capacity and can fire 8 shots per minute. The tank also got a new stabilizer; the 2E23. It was coupled to the new TPD-2-1 (1G15-1) sight. Night driving was adopted thanks to the TPN-1-43A periscope and L2G infrared projector that was on the left side of the turret cheek.
Prototypes were tested in 1966 and 1967 and, as production began after the six hundredth T-64, it entered service in the Soviet Army under the name: T-64A.
Production history:
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The production was set between 1963-1967; however it is established that the T-64 formally entered service with the Soviet army in 1967 and was publicly revealed in 1970. The T-64A was intended to replace the is-3 and t-10 heavy tanks in independent tank battalions.
The T-64A’s autoloader, is still used on all T-64s currently in service, as well as all variants of the T-80 except the Ukrainian T-84-120.
While the T-64 was the superior tank, it was more expensive and physically complex, and was produced in smaller numbers. The T-72 is mechanically simpler and easier to service in the field, and its manufacturing process was cheaper and simpler at the time.
The cannon:
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2A46
2A46M-1 in Motovilikha Plants museum
The cannon was developed in by the Spetstekhnika Design Bureau in Ekaterinburg in the 1960s and was originally designed for t-64’s. It entered service in 1970 and is still being used today.
The ammunition for the cannon is loaded in 2 pieces: first the projectile is loaded then after that, the propellant follows it finishing the loading sequence. The cannon is capable of firing apfsds (armor-piercing fin-stabilized discarding sabot), heat-fs (high explosive anti-tank fin-stabilized) and HEF (high explosive fragmentation).
The autoloader:
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MZ Carousel
The autoloader is used in t-64’s and t-80’s. It can load 8 projectiles per minute. The capacity of the autoloader is 28 projectiles. The propellants are placed vertically and the projectiles are placed horizontally.
The ammunition:
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3bm22
3bm22 specs:
•Penetration: 420 mm at 0° at 2000 m and 170 mm at 60° at 2000 m
•Projectile weight: 4.485kg (including sabot: 6.55kg)
•Muzzle velocity: 1785 m/s
3bk12m
3bk12m specs:
•Penetration: 440mm RHA at 0°
•Projectile weight: 19 kg
•Muzzle velocity: 905 m/s
3of26
3of26 specs:
•Projectile weight: 23 kg
•Muzzle velocity: 850 m/s
•charge weight: 3.4 kg
Propellant charge
Composite armor:
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Object 432’s composite armor which was later used in T64’s
(Translation: combat protection scheme of object 432 first half release year 1964)
The hull armor consists of 80mm laminated steel, 2 52mm layers of fiberglass sheets and 20mm steel sheet.
The turret armor of the T-64A
(Seems like the same turret that can be found in war thunder)
The turret armor consists of 65-400mm CHA, 140mm HHRA and 30mm RHA.
The Engine:
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5TDF
The tank uses a 5 cylinder opposed piston diesel engine. It generates 700 hp at 2800 rpm. In reverse it goes 4kph and forwards it goes 60.5kph which can round about to 61kph as seen on the manual page below.
(Translation: operational data, (for a single tank in various road conditions), driving speed, kph,
average (off-road 35-45kph) (on road 45-50kph)
Maximum (off-road ----) (on road 60.5kph)
Feel free to add or correct info in the suggestion
Sources:
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T-64 - Wikipedia
2A46 125 mm gun - Wikipedia
https://www.quora.com/How-effective-was-the-T64s-composite-armor-for-its-weight
https://www.artstation.com/artwork/04Y5QV
5TD engine - NamuWiki
T-64A mod. 1975 : Soviet Union (SOV)
T-64A Russian Main Battle Tank - Technical Manual | PDF
3BM22 - SBWiki
Танковые боеприпасы - презентация онлайн
Kintex : 125 mm 3VOF36 ROUND WITH 3OF26 HIGH-EXPLOSIVE PROJECTILE
Here’s Why We Don’t Have Opposed-Piston Engines—at Least Not Yet - AutoWeek - Achates Power
https://www.reddit.com/r/TankPorn/s/Frff04qDJp