An upgraded version of the Sukhoi Su-57 will go into production starting in 2025

stlbeacon.org - 8/15/2021

Sources in the Russian military-industrial complex have reportedly stated that an upgraded and modernized version of the Su-57 is to begin serial production as of 2025. The modernization is part of the Megalopolis development program. According to TASS, among the main improvements of this «new Su-57» is the incorporation of the second stage engine, the Izdelie 30, and the renovation and upgrade of the cockpit, probably to unify as much as possible the production of the Su-57 and S-75 Checkmate.

See the full article at stlbeacon.org