The T-62 is a Soviet main battle tank that was first introduced 1961. As a further development of the T-55 series, the T-62 retained many similar design elements of its predecessor including low profile and thick turret armor. In contrast previous tanks, which were armed with rifled tank guns, the T-62 was the first tank armed with a smoothbore tank gun that could fire APFSDS rounds at higher velocities. While the T-62 became the standard tank in the Soviet arsenal, it did not fully replace the T-55 in export markets due to its higher manufacturing costs and maintenance requirements compared to its predecessor. Although T-62 was replaced in the Russia and successor states of the Soviet Union, it is still used in some countries and its design features became standardized in subsequent Soviet and Russian mass-produced tanks.
The T-62 has a typical tank layout: driver's compartment at the front, fighting compartment in the center and engine compartment in the rear. The four-man crew consists of the commander, driver, gunner and loader. Although the T-62 is very similar to the T-55 and makes use of many of the same parts, there are some differences. These include the hull, which is a few centimeters longer and wider, the different road wheels, and differences in characteristic uneven gaps between road wheels. Unlike the T-54 and T-55 main battle tanks, the gaps between the last three pairs of road wheels are larger than the rest.