Hello, first post here! Long-time KSP player and lurker, first-time poster. Somebody call Reaction Engines Limited - I just built a stock clone of Skylon, their proposed SSTO powered by SABRE engines (I'm probably not the first to do this). I can say that it flew beautifully in Kerbal Space Program, so I think that the future looks bright for it in real life. That's how these things work, right? Seriously, after fiddling around with complicated SSTOs with lots of aero-surfaces but not much flying prowess, some of which worked better than others, I decided to do something a bit simpler and crafted this unmanned SSTO, which I call the Javelin. Javelin model I is a cargo-carrying craft, while Javelin model II can carry passengers into orbit. It flew so well; I've never been this proud of a vehicle that I created in KSP, and so I had to share it with people. In essence, all it consists of is a drone core with a cargo bay, docking adapter, some finely balanced fuel tanks, and a couple of SABRE engines (I mean RAPIER, sorry) mounted on small, stubby wings. It took a while for me to learn the proper ascent and de-orbit profiles, but I've figured it out and it works really well. I also think it happens to look quite beautiful. [Note that the craft itself is entirely stock; however, I flew it with Ferram Aerospace Research, which obviously changes the aerodynamics quite a lot. I don't know how well this would work with vanilla KSP aerodynamics] Javelin I: http://www.filedropper.com/javelini Javelin II: http://www.filedropper.com/javelinii Now for some glamour shots. I forgot to take any on the way out of the atmosphere, for which you have my apologies (I was concentrating so hard on flying it correctly, which is tricky in FAR). I appear to have screwed up posting my album properly (because forum newbie), but it has kindly been posted just below by someone else. Let me just say that slowing down from Mach 5.5 in FAR is really, really hard.