ZHUKOVSKIY (Sputnik) — The new rocket is based on the suspended Soviet-era Energia-Buran project.
"The launch of the super heavy-class launch vehicle equipped with modernized RD-171MV engines is planned in 2028," the engine manufacturer's presentation made at the MAKS International Aviation and Space Salon states.
The RD-170 rocket engine, developed for the Energia project, has been upgraded and is used in Russian-Ukrainian Zenit carrier rockets as the RD-171, and in US' Atlas 5 launch systems as the RD-180.
Energia-Buran project was suspended in the 1990s. Five Energia rocket frames at various stages of construction were broken up at the Baikonur space center in Kazakhstan and at the Energia corporation assembly facilities.