6...
Will be testing an Oxidizer Rich Staged Combustion rocket engine with the thrust level of the Spacex Merlin 1d mfg in India at a Russian test stand.
The US ULA has been buying RD180's (also ORSC) from Russia for the last 16 years and the US/Russian JV that slaps made in USA on the packing crates "upgrades" and "certifies" them for US use has been claiming they could mfg them in the USG if paid enough money, but it's so hard because "y'know this techs complicated and we don't really know how to do this stuff and all the blueprints are written in Russian and none of us speaks Russian and the metallurgy is tricky and and"