You know you could create versions of the standard Traveller starships that are designed to exclusively operate within the atmosphere of Saturn, they will be tech level 8 designs, and we'll assume this is before artificial gravity was invented or the jump drive or the reactionless maneuver drive. What we got instead are reaction drives powered by fusion reactors that use the gases in that atmosphere for fuel and reaction mass.
We can keep the floor plans for most of the traveller ships except for the wheel shaped lab ship, the hulls will have to have streamlining and need fuel intakes and processors. People will live in floating structures within the atmodphere, some are held up by hot hydrogen balloons heated by fusion reactors, others are flying wings using fusion torch drives for propulsion to maintain lift or are used directly as pillars of flame pointed downward to hold it aloft. The time this takes place it would be the late 21st century, but more likely the 22nd century.
We can keep the floor plans for most of the traveller ships except for the wheel shaped lab ship, the hulls will have to have streamlining and need fuel intakes and processors. People will live in floating structures within the atmodphere, some are held up by hot hydrogen balloons heated by fusion reactors, others are flying wings using fusion torch drives for propulsion to maintain lift or are used directly as pillars of flame pointed downward to hold it aloft. The time this takes place it would be the late 21st century, but more likely the 22nd century.