Your video says they did create an equivalently powerful liquid fuel engine, though. Less "We couldn't re-make it" and more "We looked at this hand made hand fitted bespoke grandfather clock manufactured by a guildmaster in Prague in 1845 and we built something that works the exact same way but uses modern construction and design principles."
Like, if you wanted to build a 1953 Chevy Corvette obviously the old tools and dies and assembly lines are gone, but you could build a frame and an engine and body and so on using modern techniques and it would look the same and do the same thing.
Your video says they did create an equivalently powerful liquid fuel engine
That would be the F-1B engines for the SLS rocket that I included in my table. They have never been built or tested, much less used.
The Soviets built and tested an equivalently powerful engine for their N1 rocket in the 1960s, but it failed. Creating a design is no guarantee of success.
Your video says they did create an equivalently powerful liquid fuel engine, though. Less "We couldn't re-make it" and more "We looked at this hand made hand fitted bespoke grandfather clock manufactured by a guildmaster in Prague in 1845 and we built something that works the exact same way but uses modern construction and design principles."
Like, if you wanted to build a 1953 Chevy Corvette obviously the old tools and dies and assembly lines are gone, but you could build a frame and an engine and body and so on using modern techniques and it would look the same and do the same thing.
That would be the F-1B engines for the SLS rocket that I included in my table. They have never been built or tested, much less used.
The Soviets built and tested an equivalently powerful engine for their N1 rocket in the 1960s, but it failed. Creating a design is no guarantee of success.