It is noted that these engines are planned to be used to manufacture the first stage of the new Soyuz-5 launch vehicle, as well as in the production of the Yenisei superheavy rocket.
The terms of reference for the purchase of NPO Energomash talk about plans to purchase long products of cast steels and alloys RD-171, about 19.5 million rubles are planned to be spent on these purposes.
“The product is intended for use by the customer in the main production for assembling the RD-171MV as part of the Phoenix development work,” the document says.
In June, the Energomash press service announced preparations for sending three RD-180 rocket engines to the United States.