Russia will supply the largest ever number of space rocket engines to the United States in 2017 within the framework of the previous agreements, head of the Russia’s NPO Energomash corporation Igor Arbuzov said on Wednesday.
“The largest volume of supplies is intended for this year: 11 RD-180 engines for the US Atlas V rockets and four RD-181 engines for the US Antares rockets,” Arbuzov told reporters.
The US Blue Origin company has been developing BE-4 engines, set to eventually replace Russia’s RD-180, since 2011. The flight tests are expected to take place in 2019.
Full article: Russia to Supply Largest Ever Number of Space Rocket Engines to US This Year (Space Daily)