@Twkool125lol I said that the vizzy didn’t work, I was developing it for RSS but I failed in making a precise orbit. But I don’t know why that’s happening. I’m pretty sure that when I uploaded it, each stage had at least the correct amount of fuel and thrust. I don’t know how to fix that. But I did make a new version with a much better LEM that I’ll upload soon, I’ll make sure to not have those issues.

S-II engines*

FYI: originally the fuel on S-II used methalox.

@Luc3s Hello, the Vizzy automatically staged and ignited the Ifrit Solid Boosters on the side as expected - but guzzled through the fuel too quickly of the S-II stage. This would cause the S-II engines to not ignite. It just wouldn’t ignite despite the Vizzy code saying it did.

But this was solved easily by changing all the engines on the S-II to use Kerolox fuel as the big white main fuel tank used Kerolox fuel.

Once it was fixed; another problem would arise though on S-III. As soon as the Vizzy code reaches to staging, the side rockets would ignite as expected-but guzzle quickly through the fuel - leaving the S-III engine to not ignite. Leaving the whole thing in a sub-orbital trajectory.

Also, S-II seems to be too weak too. It also doesn’t burn as long as your Apollo 8 build as the spacecraft barely reaches 80-100km and seems to fall back down to Earth despite the engines running at 100% power before staging can happen.

My hypothesis suggests that the rocket used for the shockwave effect is causing the fuel for the stages to go all over place.

@Twkool125lol I haven't experienced that, can you describe it more? Check the fuel of the main white and big fuel tank on the S-II, then check the fuel of the engines. Say what they are if they're different.

@Luc3s can you please fix the issue of staging not properly working with the S-II engines not igniting.

If not, please explain how to fix this. Ive tried adding the supersonic effect to your Apollo 8 spacecraft but the fueling is all over the mess. Thanks.

@ExplorationMegaCorp I just uploaded a more mobile friendly, although still 600 parts, apollo 8 with the lem and tower removed.

Mobile friendly, it seems...

Nice build, cheers

@Mikekiy876 what do you mean?

How to activate LM?

@Cyberstar3964 thank you!

Dang your builds are legendary

AWESOME!!!

@OrionTechnologies When I built it, I put the correct fuel, but I put an effect of a supersonic shockwave if you go above 343 m/s, or hit the ag, and that uses an engine, so it screwed up the fuel because I always forget to turn off auto select fuel

Dude, the S-II and S-IVB were LH2/LOX fueled, not RP-1/LOX, and the second stage and third stage engines agree. Cool aesthetically though