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Ukrainian T-80U isnt AK1, AK1 is marketed by NORINCO, a Chinese firm as MBT 2000, it is Type 90-IIM which shares 10% of its components with the Type 59, 15% with Type 69, 20% with Type 85/88C, and is built with 55% new components. It incorporates design elements of T-72 (which developed into Type-80/85 tanks) and some western tanks. Ironically, Type 90 was rejected for Chinese service in favour of other designs.
The T-80 is from the Kharkiv Morozov Machine Building Design Bureau KMDB, introducing a gas turbine engine in the original model, and incorporating suspension components of the T-72.
The T-80 is based on the T-64, which was a competing design at the time the T-72 was produced. The T-64 was Morozov's offering, and was initially intended to be the Soviet Union's primary MBT, while the T-72 was intended to be mainly produced for export partners and east-bloc satellite states. The T-72 is mechanically simpler and easier to service in the field, while it is not as well protected, and the manufacturing process is correspondingly simpler.
This was enough of an advantage in the long term for the Soviet Union that the tank most produced was the T-72; obviously it better fit the Soviet ideal of quantity over quality; while the T-64 was the superior tank, it was more expensive and physically complex, and as such was not produced as much, and was never exported.
The T-64's story continues in the T-80. Morozov extrapolated on the design, including a gas turbine engine. This gave the tank a stunning power-to-weight ratio and made it easily the most mobile tank in the world (where it remains today, according to most experts). This is because while there are other tanks which boast similar power (the M1 series has a 1500-hp gas turbine as well, while it weighs in at a whopping 70 tons), the Soviet tanks are almost half the size and weight (hence the similarity in their looks; it's the national tank design ethic, pan shaped turrets, sharp hull fronts and low profiles).
It might be said the Russians are "desperate" to find export partners for it, which is not true; the Ukrainians are (Morozov is at KharkovKharkov ( rus: ) or Kharkiv ( ukr: іis the second largest city in Ukraine, a center of Kharkivs'ka oblast'. It is situated in the northeast of the country and has a population of two million. It is one of the main industrial, cultural and educatio, in Ukraine. In the Soviet era, it was in the USSR, but is now a Ukrainian factory). They have been moderately successful, selling units of two types to Pakistan, while the Russians are "desperate" to sell the T-90, at which they have also been to some degree successful, selling units to India.
The T-80's disadvantages are in the small size of the tank (about 1/2 to 3/4 that of the M1, depending on the aspect). The crew quarters are cramped and difficult to work in. Except in more modern versions like Oplot and Black Eagle, the ammunition is stored below the crew inside the crew compartment in the autoloader carousel, which means that when the tank is penetrated, the ammo cooks off, killing the crew and blowing the turret into the air. Due to the small turret, it is impossible to depress (negative elevation) the gun more than a few degrees when the tank is in defilade, and so the tank has a hard time firing from hull-down positions, though in newer versions like Oplot and Black Eagle, this is mitigated as well with entirely new turrets.
These disadvantages are endemic to Soviet tank design; nearly all Soviet tanks have them, which is to say that the only additional disadvantage to the T-80 series might be its mechanical complexity. While that was an issue in the days of the T-64's usurpation by the T-72, it is less so today, except as concerns potential third-world export partners. In any case, most such customers cannot afford T-80s, and the most recent (and even more expensive) prototypes have solved all of these problems and in many ways are similar to current Western offerings, excepting that they are considerably smaller.
It is very similar to the T-72, The T-72 a Soviet main battle tank entered production in 1971. It is a parallel design with the T-64. The T-72 design has been further developed as the T-90. Production History The T-72 was the main front-line tank used by the Red Army from 1970s to the c and T-64 in appearance. The T-80 is highly maneuverable and mobile, often referred to as the "flying tank". Current versions of the T-80 are comparable to the newest Western offerings.
close down the wikipedia for once
..jst kidding thnks for the info though the whole point was arjun is way better than al khalid or any other tank in pak armour n also chinese armour
to DRDO for this...maybe this success helps them in speeden up other halted projects..
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