"The objective of the invention is to create a family of unified multistage modular launch vehicles with a wide range of payloads," RIA Novosti quotes an explanation to the patent on the website of the Federal Institute of Industrial Property.
The rocket is assembled from universal rocket modules based on RD-171 engines.
The maximum configuration assumes the use of 14 such engines.
Earlier, the Vostochny cosmodrome set a record for the number of rocket launches per year, twice the figure for 2018, TASS reports.