In the tradition of 15mm Traveller miniature gaming, many of the original supplements surrounded actions aboard starships where, presumably, there was an awful lot actions aboard star ships. Surprise inspections by PDF (Planetary Defense Forces), raids by mercenaries with letters or Marque or simply pirates looking to take what there was to be had were the "normal" actions and in some cases the PC's were the pirates!
One of the ships which we had attacked was a Marava class far trader. At the time we had had to create our own deck plans for this class of ship based on the drawing that was available in the later Traveller Book.
Thankfully, there are a number of new applications available that have allowed this great ship's deckplans and her variants to become available for use with the usual deckplans already available in Snapshot or Azhanti High Lightning.