Topic summary
RD-171M
Extracted from the Wikipedia article RD-170.
RD-171MV
A modification of RD-171M used on the Irtysh rocket. Unlike RD-171M it only uses Russian components and features a new control system. First test sample was manufactured in early 2019. Tests were reported to have been successfully completed in September 2021. The engine first launched in April 2026, with the first launch of the Soyuz 5 rocket.