Jimbodiah Kerman

The NK33 looks cool and at least has an AJ designation ;)

Maybe add a russian cluster and a single bell to entertain both options, like we have now with the Merlin vs RDxxx for the soyuz. Are there any hydrolox engines...

That LR87-LH2 looks like a nice go-between at around 60% of the J2. Re your kerlox engine list: No shortage in future modelling work, Mage ;)

No clue to the 1.875 unlock in 1.4/MH: My favorite mod is not compatible yet for 1.4 ;) I spent like 30 minutes on 1.4 before I ran away screaming....

Have you seen this one? https://spacedock.info/mod/855/Historical%20Progression%20Tech%20Tree It has linear branches in different areas (engines, aero, tanks etc) and each new node is a fixed era.

Perhaps it's an option to do this? 1.875m -> unchanged 2.5m -> unchanged 3.125m -> 3.75m 3.75m -> 5m (or 6.25m) 6.25m -> 10m Not sure if adding the NEEDS[RSS]...

Who uses stock parts??? ;)

Is Linux supported? @shadowmage45

I tried using LqdMethane as a fuel fro CRP but it will not take, this is already logged as an issue. I just rescaled other engines as model and just...

Did you download the Textures Unlimited mod that goes along with it? I still have 1.3.1 running and the textures are there, so I suspect something is missing in your...