For Lunatics, we need several space vehicles. For a few of them, we have existing free-licensed computer models that we can use, but others are not so easy, or need customizations. The Soyuz launch vehicle is one of these, and it was relatively easy to model, since launch vehicles are geometrically simple (basically a bunch of extruded cylinders and cones). In Part I, I'll demonstrate the basic modelling techniques I used to create the Core Stage.