SUCCESS! Got them to go (more or less) Straight, tri symmetry fins and three of the orange tanks with two of Quadbits mini engines and fuel tanks on either side to help me get past the tower. The missile does have stub wings to help it stay going straighter, though it always ends up going sideways at some point because the SAS won't stay active once dropped from the lifter. I was using my three hybrids to get this massive thing airborne, I need to balance them out still though as they are almost SSTO capable and that isn't kerbal. ActivatesEvenIfDisconnected = True Is the command line you need to get things to light off after dropping from the lifter. The parts on this missile have been tweaked, I originally edited MMI's ion engine to act more like a jet engine and it works nicely as that, so I used it for the missile.