The Secondary Hull Superstructure is a customizable system that allows you to add various function specific components (see below) to your starship. The superstructure itself adds approximately two decks of usable space (one complete deck, plus the added lateral space of the previously curved top of the hull.)

The system requires a pair of curved ends (the Main package); single and double width center sections (the same widths as the panel line divisions on secondary hull sections) can be added as desired. Note that overlapping the end sections too far to the front or rear ends of the secondary hull will require you to putty the empty space beneath them to create a solid structure.

The Upper Shuttlebay Structure can add through-deck capabilities similar to the Belgium, Nimitz and Kuznetsov class hulls of old. Lengths can be adjusted to fit the size of the hull.

The Superstructure system (above, sold separately) is used to create the shuttlebay deck. Shuttlebay components are sized to match. This system has a lower interior ceiling than the main shuttlebay due to the additional support required where a ship's dorsal connects the primary and secondary hulls. An optional solid end bay is also available.