I just want to share the design for a rocket I came up with that uses jet-fuel boosters to get its first kick to space rather than liquid fuel or SRBs. I haven't gotten this to space yet; I took a screencap shortly after (actual) liftoff and shortly after the game crashed. Image below"
Honestly, I can't believe it even took off. It estimates about 18 minutes worth of fuel. This is a very early modded science mode game, and these are the first jet fuel tanks/engines/air intakes that you can unlock. The intakes and engines were made larger with Tweakscale, and that also increased the output enough for the bigger tanks. I haven't tried this with other engines. Has anyone else done this and, if so, how did it go?