It's finally finished:
http://i.imgur.com/MIROsiO.jpg The Solar Airship, complete with a defense system, mess hall, control panel, radio tower, intercom, dorms, lockers, training room, lab (made by
@pajrc), library, solar panels (on the roof of the dorms, but they're painted with shadow paint so they're hard to see), and a solar energy converter. It's for the CC, of course.