The jet, also called the PAK FA, will enter service in 2014 or 2015, Russia's air force chief said Tuesday, RIA Novosti reported.
"We will receive a T-50 prototype in 2013," Gen. Alexander Zelin, air force commander in chief, told reporters. "Mass produced aircraft will not arrive until 2014-2015." The jet is being developed in partnership with India.
The Russian military also announced it will use new MiG-35D multirole fighters as the equivalent of the U.S. F-35 fighter, the RIA Novosti report said.