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.
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.