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KSP2 Release Notes
Everything posted by Zorg
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The interstage was damaged by debris from the MM shield being torn off and was retained all the way to orbit. This failure is often forgotten about as the attention is on the MM shield and the solar panels (I admit I usually forget myself on Skylab recreation screenshots but this nearly led to complete mission failure too).
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I removed the indents that were preceding the equals sign in somelines, if thats the issue? Idk how it got there. Someone's text editor trying to be too clever I guess. Didnt get a chance to test the updated cfg with SCANsat though so if someone could check that for me, I will be able to take a closer look tomorrow.
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plenty of people have asked for this but its just too much time, effort and texture space for essentially a meme. Which errors? I couldnt spot any module manager errors (I might just be missing it) or do you mean in the SCANsat module? If there are any issues would appreciate the specifics (or a pull request )
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I've made some adjustments to the Skylab masses. For JNSQ 180km x180km at 50 degrees with the S1C defueled to 80% (as recommended by JSO for historical Lunar Mission) it gets into orbit with about 300m/s left. Lift off TWR is around 1.6. I think this is a good place to leave it as it leaves plenty of margin for life support mods etc.
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There have been multiple proposals for "Large Diameter Core" titan rockets as well as the Barbarian. Barbarian was a one off launcher to lift the Zenith Star space borne laser for the SDI program and there was an even madder competing proposal from McDonnel Douglas (a Delta II core with 6 Delta II boosters, and 3 shuttle boosters outside that). Anyway here's a good place to start: https://www.spacelaunchreport.com/titannot.html Check Barbarian, 3L2, 3L4 And LDC Barbarian used 5 engines while the LDCs uses 4 engines. Some online sources will show a picture of a 4 engine test article to illustrate articles about Barbarian but thats incorrect.
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A part that uses the BDB jettison module like the Skylab workshop or Centaur D cannot be the root part. A note to this effect is in the part description. For Skylab the logical root should be the S4B Instrument Unit. It’s easy to overlook I know and we would rather it not behave like that but according to JSO who does our coding root related bugs are very hard to solve and we don’t have a fix right now.
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I have t actually finished balancing the Skylab parts yet. But it is worth considering that the Saturn V is somewhat overpowered. Due to the dry mass fraction of KSP tanks being much higher than IRL, we have a situation where very small rockets underperform and sometimes need to be buffed (scout, red stone etc) while most rockets in the 1.5m to 3.125/3.75m range perform very accurately. And on the flip side very large rockets actually over perform. I plan to go over the Skylab masses again but also JSO had recommended defueling the S1C for Apollo missions. This might give more realistic performance? I’ve only done one flight test recently and had 600m/s left over at 180km 50 degrees in JNSQ. there is little margin to play with the mass of most components as they will affect the wet labs negatively as they are quite marginal but I might make the dry OWS a bit heavier
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Yeah our boiloff system was designed around simulating the old cryogenic tanks for our historical rockets. Boiloff can be mitigated to an extent by using dedicated cryogenic tanks such as Centaur or SII which have insulation and they will boil off less inside a cargo bay or fairing. these methods probably extend the life of the mission by a few hours not days. You can turn down the boiloff rate in the BDB panel in the in game difficulty settings or turn it off entirely. Alternatively there is a patch in BDB extras that will substitute the BDB boiloff module for CryoTanks’ one. personally I have always used CryoTanks for depots as I think the gold foil tanks in that mod look great and represent zero boiloff tanks nicely. having said that we might have some sort of cryo cooling solution like you suggest in the future. In the next major update after upcoming Saturn/Apollo one we will be looking at things like nuclear tugs and so on so maybe it’s time to figure out what we want for BDB cryo cooling.
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I've also made some wetlab balance adjustments, be interested to know what people think. Should be possible to get a stripped down skylab into a 120x120, 90 deg orbit in JNSQ now . Also the standard wetlab is now the lightweight version and the VFB one with the wider shield is now a bit heavier. Its worth noting that the punishing mass budget was a big part of what led to this whole thing being dropped and going for Saturn V dry lab . Upgrades to the J2 and using E1s on the first stage would also yield gains.