Mass production of the fifth-generation Su-57 fighter has started in Russia, the brochure dated to the 80th anniversary of the Sukhoi aircraft manufacturer, read.

"Multinational aviation system of the fifth generation, which has highly-intelligent onboard equipment, is barely noticeable and is also characterised by a great line of aerial targets interception and ground targets destruction. Mass production was launched in 2019 and a long-term contract was signed with the Defence Ministry for delivering over 70 aircraft", the brochure says.