Today, "Roscosmos" reported that "Energomash", which is part of the state corporation, has built the first RD-171MV engine. The uniqueness of it lies in the high thrust, which should exceed 800 tons, making the RD-171MV the most powerful engine in the world.

"In June 2023, at the Scientific and Production Association "Energomash", the production of the liquid rocket engine RD-171MV was completed for the first flight tests of the new carrier rocket "Soyuz-5"", - "Roscosmos" reported. "The next stages of the programme will be interdepartmental tests of RD-171MV and serial delivery of engines for "Soyuz-5" rockets", - the corporation added.

This year, they plan to assemble the second RD-171MV for the second flight rocket "Soyuz-5", and then they will produce an engine for the third flight rocket.