Well, who needs more information.
The state corporation Roscosmos has begun designing a new super-heavy rocket, which will abandon the idea of building a similar launch vehicle based on the Angara family of missiles, Izvestia newspaper writes on Monday with reference to RSC Energia CEO Vladimir Solntsev.
It is planned to create a new rocket on the basis of the backlog of the Soviet program "Energia-Buran", in particular, it is planned to use the Soviet liquid-propellant rocket engine RD-170, developed by KB "Energomash" for the launch vehicle "Energia".
“We are not yet considering the use of hydrogen circuits at the first and second stages of this carrier. We want to take the third stage from the already flying Angara, ”explained Vladimir Solntsev.
The projected rocket based on RD-171 technologies is supposed to launch about 80 tons of payload into low-earth orbit. In the future, it is assumed the possibility of increasing the carrying capacity to 120 tons and, if necessary, up to 160 tons by changing the layout of the rocket and expanding the capabilities of the engines. Thus, the projected carrier will become the main rocket in the subsequent implementation of the lunar program.
Roscosmos believes that it will take five to seven years to create a super-heavy rocket according to the chosen scheme. It is noted that the appearance of a rocket based on RD-171 technologies will make it possible to abandon the project to build a super-heavy launch vehicle based on the Angara modular missile family.
Back in October 2014, the Khrunichev Space Center proposed to create a super-heavy rocket based on the Angara rocket, but the project did not receive approval from Roscosmos, since from the universal booster blocks from which rockets of different classes of the Angara family are assembled, only a rocket with seven such blocks. It is technically impossible to connect more than this number of upper stages. The project for the development of a new super-heavy launch vehicle is included in the Federal Space Program 2015-2025.