Friday, April 6, 2007 Tank T-90 (MBT) Production history The T-90 with an 840 hp engine went into low-level production in 1993, based on a prototype designated T-72BU. The T-90 was developed by Russia 's Kartsev-Venediktov Design Bureau at the Uralvagonzavod factory in Nizhny Tagil . The T-90 features a new