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You can get testing/beta builds from github, but if you want to complain to much about bugs or worse, consider yourself warned, its no official release for end users with expectations. You can also use this to test add-ons for the future or try orbiter in x64 or Linux...

Yes, also I think such a "cabin-based gravity section", like used in some sci-fi (at least Battletech mentions some) could also be done at least cheaper with teflon bearings for the same performance.... powering the cabins would also be a problem.

I would say, it is because it isn't implemented yet. @moderators Can you move this into the right subforum?

Well technically, they work by both repulsion and attraction, but how fast do you want the section to rotate to make it worth it?

Actually the far too short wheelbase of the 183 make it look more like a toy here. :ROFLMAO: There are jokes along "Pull backwards until it clicks and then release it.". But you are right, the 181 is really superior in mechanical simplicity.

Ah, the "Kübel" (junior) AKA "PKW 0,4 t tmil 4 × 2" in the West German Army. Internally almost the same as the senior of the Wehrmacht, just some more VW Beetle evolutions more. The more modern Iltis (type 183) would have been my suggestion there, it still looks like a joke, but was very...

Didn't it have cold gas attitude control, based on compressed nitrogen? If you know the tank size and other details, it could be calculated how much "fuel mass" it has, until reaching regulator pressure.

Yes, if you set the variables BEFORE you add the subdirectories or include a file. You can also add the parameter "PARENT_SCOPE" to invert the hierachy and specify a variable that should also exist in the parent folders. Also, you can create build options with option() or set(CACHE) You can...

More is rolling to the launch pad! https://www.esa.int/ESA_Multimedia/Images/2024/06/Moving_the_Ariane_6_upper_part_to_the_launch_pad_for_first_flight

I would consider making the basic Orbiter path a variable, then you don't need to repeat yourself there.

@francisdrake The foil colours are very similar for Russian unmanned spacecraft, that alone is not really distinguishing. Russia makes more use of the old grayish textile insulation though, something even Shenzhou lacks. Also, the space station modules of China look more like a mix between...

5800 Ns/kg is pretty OK for a rocket engine, on the high end for chemical propulsion. Using km/h as unit for specific impulse instead of the proper "Ns/kg" is of course confusing. I doubt that using the unusual Dodecane as fuel will result in such a high specific impulse, it has a lower hydrogen...

Maybe the topography requires some rework.... looks like the elevation data of the different swaths are offsets. In reality, it looks like this: https://svs.gsfc.nasa.gov/4716/

That looks weird, but you could easily check if that is bad code messing with your enums: Just assign explicit values to the enum classifiers. enum FAIRINGStatus {SEPARATE = 0, NOT_SEPARATE = 1};

In case I didn't explain it well enough. Space Shuttle Vessel is the successor to SSU, it is based on the SSU source code, but with many improvements.

So, you have to find out what else triggers the CTD, if the fairings still separate. Also, I would consider in your case, to modell all structural stages (first stage, second stage, with fairing, without fairing) and all transition states (Staging 1->2, fairing separation) in one int variable...

"Space Shuttle Ultra" does not even exist for KSP, its only for Orbiter and its pretty obsolete, I would suggest to your brother to get Orbiter 2016 and "Space Shuttle Vessel" (SSV), the only active successor project of Space Shuttle Ultra (SSU).

Thats OK with C or C++, just bad style. Any value that is not 0 is interpreted as true in a if statement (or similar). Thats why I warn of doubles. a infinitesimal small number above zero is still non-zero. Much better is using enums or at least named constants for a state machine, like: if...

If it is really a part of the structural state machine, fairing should be superfluous and much less needs to be a double. Thats just one more error source more. What will you do if fairing is not 0 or 1.000 but +1E-49?

Why is fairing a double? Can you have 0.5 fairing?