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Object 187
Object 187 (Объект 187) was a Soviet experimental main battle tank developed between the late 1980s and middle 1990s. It remains a relatively unpublicized development because of high levels of secrecy surrounding the project.
== Design ==
The tank was fitted with cutting-edge systems and structural solutions, losing many of the traditional shortcomings of Soviet tanks. Originally the design was intended to be only a temporary solution before the development of new combat platforms. ''Object 187'' was a parallel project to Object 188, the T-90 tank. It was based on the T-72B, with a heavily modified turret. A particularly notable feature was the rejection of the T-64 hull design. The redesigned layout took up more space, but positively affected ergonomics and protection from the glacis plate. Due to lengthening of the hull's nose section, the driver's position was lower, with his optics attached to the roof of the hull, unlike in the T-64 and its derivatives. This remedied a notorious weak spot of the T-64 design - the section between the turret and the hull. The same solution made it possible to arrange armouring at more rational angles of inclination as a countermeasure to modern sub-caliber armour-piercing rounds. The tank was fitted with a new welded turret, unlike traditional cast ones, fabricated using steel Rolled Homogenous Armour (RHA). Work on the welded turrets of ''Object 187'', Object 188 (T-90) and the future T-80UD was carried out practically simultaneously. The turret of ''Object 187'' was characterized by an imposing overall size, especially in the rear section.
The 902A "Tucha" grenade launcher was fitted for deploying smoke and aerosol screens, and snorkel equipment was also installed.
Several types of power plants and transmissions were tested on the different modifications, including a gas turbine engine. The most promising of the power plants in the course of tests proved to be the 1200 hp А-85-2 engine. It was installed in a longitudinal configuration, similar to the T-34. A new undercarriage and hydraulic shock absorbers substantially increased dynamic abilities.〔(Танк "Объект 187" ) (in Russian)〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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