The United Engine Corporation (UEC, part of Rostec) showed tests of RD-107A/108A rocket engines. Serial production of the units was established at the UEC-Kuznetsov enterprise in Samara.
After the manufacture of all parts and assembly, the engines undergo testing on a special stand. Here they must confirm their technical characteristics and reliability.
In a few minutes, the power plant burns 12 tons of kerosene and about 30 tons of liquid oxygen. During fire stand tests, the engine's operation is checked for many parameters - thrust, functioning of the fuel and other systems, turbopump unit, vibration load, temperature, time and other parameters.
After testing, the engine will be sent back to the workshop, where it will be disassembled, the parts will be washed, assembled and sent for installation on the Soyuz launch vehicle.
UEC recalled that the RD-107A/RD-108A engines produced by UEC-Kuznetsov are equipped with the first and second stages of all Soyuz family launch vehicles.
To date, the company has manufactured more than 12 thousand serial rocket engines, with the help of which more than 2 thousand launches of space rockets have been carried out. The statistical reliability of the engines is 99.9%.
Read more materials on the topic:
- Engine builders "UEC-Kuznetsov" could not win the lawsuit against "Tupolev": what will happen next for the engine manufacturer?
- The most powerful engine in the world: the RD-171MV power plant was presented at the Dubai Airshow 2025
- Roscosmos continues to work on the creation of the RD-0177M engine for the Amur-SPG rocket
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