Yenisei (rocket)

Yenisei
FunctionSuper-heavy Orbital Launch Vehicle
ManufacturerRSC Energia
Country of originRussia
Project cost1.5 trln Roubles (USD ~$18.2 billion)
Size
Diameter4.1 m
Mass3167 tons
Stages2 (Don – 3)
Capacity
Payload to Low Earth orbit
Mass103 metric tons (101 long tons)
Payload to Trans Lunar Injection
Mass27 metric tons (27 long tons)
Associated rockets
Comparable
Launch history
StatusIn development

Yenisei (Russian: Енисей), project name RN STK-1 (Raketa-Nositel' SverkhTyazhologo Klassa – Carrier rocket super-heavy class), is a super-heavy launch vehicle being developed by the Russian space industry. The main developer is RSC Energia.

It is being developed within the framework of the federal target program "Creation of a super-heavy class space rocket complex". The program was given a budget of 600 billion rubles (USD ~$6 billion). It is the main rocket of the Russian Lunar program.

The final design for the rocket was expected to be complete by autumn 2021, but the program appears to have been paused or stopped just before this expected completion date.

In 2024, it was announced that the project will resume in 2025.

The first launch was expected to happen in 2033 from the Vostochny cosmodrome.

Based on the Yenisei launch vehicle, the Don launch vehicle (RN STK-2) is being developed by adding another stage.

Anatoly Zak
RussianSpaceWeb.com
Roadmap with two rockets on the right Yenisei and Don respectively
"Irtysh" "Soyuz-5" is a basis for the first stage
"Volga" "Soyuz-6" will be used as a basis for second stage
"Yenisei"
"Yenisei" (cutaway)
"Don"