- "When NASA built the SLS, a F-1 based Saturn V like rocket was considered. And in fact, such a rocket did actually score better then the Shuttle based pre-SLS when they did the evaluation around 2011."
I think you've mixed up engines: the one SLS was evaluating around 2011 was J-2X, a derivative of Saturn's hydrogen engine J-2. Not the main stage kerosene F-1. The upper stage J-2X was intended for was cancelled and downgraded.
You can look various talks and papers from back then. NASA made a lot of 'studies' back then. One of the SLS engineers in a talk basically said 'I can not do another vehicle study, I have done to many'.
They were evaluating a RP1 based first stage with a large gas-generator kerlox engine. In these studies they often don't use engine names directly. That of course is F-1, see F-1B on wikipedia to get some links.
Somewhere I have some reddit post that have 100s of links to all the different studies and videos on this topic. I can check tomorrow if I can find those posts.
A modern J-2 and F-1 would basically make a modern Saturn V.
Of course from my perspective all these studies are not gone have the right outcome because they aren't actually asking the right question in the first place, but that's another matter. But the results of the study didn't actually matter because congress basically mostly just decides it anyway.
You can look various talks and papers from back then. NASA made a lot of 'studies' back then. One of the SLS engineers in a talk basically said 'I can not do another vehicle study, I have done to many'.
They were evaluating a RP1 based first stage with a large gas-generator kerlox engine. In these studies they often don't use engine names directly. That of course is F-1, see F-1B on wikipedia to get some links.
Somewhere I have some reddit post that have 100s of links to all the different studies and videos on this topic. I can check tomorrow if I can find those posts.
A modern J-2 and F-1 would basically make a modern Saturn V.
Of course from my perspective all these studies are not gone have the right outcome because they aren't actually asking the right question in the first place, but that's another matter. But the results of the study didn't actually matter because congress basically mostly just decides it anyway.