After a few weeks of solid spaceplane research, I present my 40-50 Ton capable SSTO carrier! I'm rather proud of it despite its monstrous part count Here she is. Dropping off a payload With 9 Tons of fuel to spare after lifting just over 40 Tons. Re-entry Landing Other outfits For interplanetary transport. It uses 374 parts and the .craft can be found here. The full album (49 pictures) along with annotations can be found here. It isn't particularly frame-rate friendly, but the craft handles extremely well for something as big as it is. The craft is 100% stock, but for the best results (and your sanity with low fps) I'd highly recommend Mechjeb's smart ASS and throttle control features should you wish to try it. The jets and intakes are assigned to action group 1, the rockets are assigned to action group 2 and the docking port is designed to be decoupled with action group 9. The standard take off procedure is to stage everything with space bar, then to disable the rockets before taking off. This ensures that the intakes and jets sync up correctly.