I have two large ships to share. First is the Odyssey class, made for the first mission to the Jool system, and transported a space station, kethane miner and a reusable lander to Vall. Odyssey class drive core with Vall Exploration Package (VEP) in tow. VEP in orbit over Val, with the 2 landers getting ready to decend. The Odyssey class was effective, but barely had enough fuel to return to Kerbin after dropping its payload, let alone continue to other destinations. Thus the Sojourner class drive core was born. This thing is MASSIVE, and launched empty so it took me a days worth of playing just to mine/transport/refine enough fuel to fill it for its mission. Testing fuel flow/structural strength of the drive core at KSC Sojourner drive core, command core, 2 landers and Duna Colony Package (DCP) assmbled in orbit. Closeup of the drive core, I ended up editing the nuclear engines to have more thrust as my duna transfer burn was slated to take almost an hour and physical time acceleration is out of the question. Closeup of command pod & landers. The home modules were (stupidly) connected with smalller clamp-o-trons and struts which ended up causing a ton of wobble. One of the landers on Duna's polar cap. These landers are probably the most successful part of this whole ship, they are capable of carrying cargo down to the surface, mining and refueling with kethane, very well balanced (unless you forget to empty the kethane tanks before getting back to space) and sturdy as hell (also I think they look awesome). Finally, the deployed Duna base. I had no idea that the HOME radial aerospikes were complete ****, so this took many many attempts to land properly. The Sojourner was a nightmare to pilot with all of its cargo attached. I was hoping to suffer though it on the way to duna, then be able to ditch the base and continue merrily on. Unfortunately even after leaving the base and one of the landers (which was not part of the plan) on Duna, it still had too many parts to make it really enjoyable to play. Its currently on a long transfer to the jool system and I am developing another lighter drive core with fewer parts, try to strike a balance between functionality, aesthetics, part count and ease of use. All of my funtional ships are ugly, and all of my pretty ships are borderline unusable...