Serial rocket engines RD-107A/RD-108A manufactured by UEC-Kuznetsov ensured the successful launch of the Soyuz-2.1a rocket, which delivered the Soyuz MS-28 manned spacecraft to the International Space Station (ISS). The launch took place today at 12:27 Moscow time from the Baikonur Cosmodrome. This was reported by the press service of Rostec State Corporation.
The sustainer engines of the first and second stages worked without any problems, which proved their high reliability. Soyuz delivered 125 kg of cargo to the ISS, including personal items, food and materials for scientific experiments.
Before the launch, UEC-Kuznetsov specialists, as part of the warranty support for the engines, carried out their adjustment and control tests in several stages. The most important of these is the pre-launch maintenance of the engines.
RD-107A and RD-108A engines are installed on all Soyuz family launch vehicles. The thrust of the first stage RD-107A is 85.6 tons, and the specific impulse in vacuum is 320.2 s. For the second stage RD-108A, these parameters are 80.8 tons and 320.6 s.
To date, more than 12 thousand rocket engines have rolled off the production lines of UEC-Kuznetsov. With their help, 2005 launches were carried out.
The company's share in the Russian market of rocket engines exceeds 80%, and in manned launches - 100%. The statistical reliability of power plants is 99.9%.
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