Topic summary
RD-107A
Extracted from the Wikipedia article RD-107.
The engines were first developed in the mid-1950s to launch the R-7 Semyorka, the first intercontinental ballistic missile. The R-7 was later adapted into space launch vehicles and the engines have been improved over several generations. The most recent versions are the RD-107A and RD-108A engines are used to launch the Soyuz-2, which is in active service as of 2024. An unusual feature of these engines is the turbines, driven by the catalytic decomposition of H2O2.