The Russian Orbital Station (ROS) will be built using three types of launch vehicles: Proton-M, Angara-A5M, and Soyuz-2.1b. This was announced by Russian First Deputy Prime Minister Denis Manturov, who clarified the distribution of tasks among the launch vehicles within the framework of the new space program.
According to Manturov, Proton-M will be used exclusively to launch the ROS scientific and power module into orbit. He noted that the rocket, specially modified for this launch, has already been manufactured and has passed the necessary stages of preparation.
The station's core and target modules, which differ in their larger dimensions and mass, are planned to be launched using the heavy Angara-A5M launch vehicle, a modernized version of the rocket being developed as part of the import substitution program and the strengthening of domestic space infrastructure.
To deliver the so-called "small" modules into orbit - light service or scientific compartments - Soyuz-2.1b rockets will be used. These launch systems have repeatedly proven their reliability in launches of satellites and cargo spacecraft to the International Space Station.