AVaughan

If you are playing with Realism Overhaul, why would you want the RF- Stockalike configs? Doesn't RO + RF + Proc tanks cover everything you need for RO ?

https://github.com/KSP-CKAN/CKAN/releases

Then you didn't follow the instructions. Best guess is you are missing one or more dependencies somewhere. Start with a clean copy of KSP 1.12.3, use CKAN and follow the instructions. Don't install anything other than the three? mods the express install recommends until after you have checked you have a working install. You aren't trying to install Parallax 2 are you? Because from what i have heard Parallax 2 and RSS currently aren't incompatible.

Sounds like something isn't properly installed. Did you follow the installation instructions? https://github.com/KSP-RO/RP-0/wiki/RO-&-RP-1-Express-Installation-for-1.12.3

I don't know. If you sum up all the launches between 1950 or so, and 2002 (the year SpaceX was founded), what percentage failed? I wouldn't be surprised if 20-25% failed. None of that means that modern launch vehicles are unreliable, just that there were a lot of failures back in the 50s and 60s.

Up until a few years ago I played RP-1 on an old I7-860 with 12GB RAM. A modern laptop i3 probably has better single threaded performance. 8GB RAM will be really tight. You will probably end up paging heavily, to the extent the game might be unplayable. (If you try I suggest closing all other programs, using minimum graphics settings and not installing any extra part mods).

They probably have some sep motors (or similar). With a suitable orientation at separation, even 2 m/s will get them a fair amount of spacing after 5 mins.

On Window the windows GUI it is "Settings" -> "Compatible game versions". A little bit of research says that CKAN uses a console UI on current versions of OSX. From https://github.com/KSP-CKAN/CKAN/wiki/User-guide#Using-the-console-UI In general, you will get faster support (and often from someone better than me) on discord. https://discord.gg/VdsxK9p7QC

@Galileo chiu I don't have a Mac, so I can't test on OSX, but typically people having problems on Windows have skimmed through the instructions and missed one or more steps. The most common one seems to be : (Also Intel or Apple M1 CPU? I'm only assuming that KSP, RP-1 and everything else work on the new Apple CPUs).

Follow the instructions on the wiki. https://github.com/KSP-RO/RP-0/wiki/RO-&-RP-1-Express-Installation-for-1.12.3

Sending something to Earth-Sun L2 shouldn't require a disposable Starship, nor a special variant. Assuming the payload has station keeping thrusters, a refuelled Starship should be able to boost the payload onto an Earth-Sun L2 transfer orbit, separate from the payload, then make a small braking burn to set itself up for re-entry in a week or so with a similar re-entry velocity to a lunar return. (It might need extra battery capacity or solar panels, but Lunar variants would need those as well). Alternatively a refuelled Starship should have enough dV for a trip to L2 and back, with re-entry velocity a little over Lunar return velocity. I wouldn't expect the round trip to take more than a couple of months. (From memory Webb was about 30 days to L2)? So it probably needs solar panels, but Mars variants will need those as well.

If I understand Stonesmile correctly, he is saying that you also need KSP Community Fixes. You can install that via CKAN.

On my install (RO + RP-1) the stock dV readout is disabled because it isn't accurate. the normal recommendation is to use MechJeb's dV display. (KER's dV display is also inaccurate).

Have we seen the engines for B8 yet? If so they could just swap the engines. Then they have plenty of time to inspect these, or send them back to the factory or McGregor.

In general don't use mods for the tutorial missions.