The Tranquility has two decks. The top deck has the bridge, staterooms, lounge, gym, galley. The bridge and lounge are toward the bow. The owners stateroom and gym are next, followed by the passengers staterooms. Then the pilot's stateroom and the crew bunk room. The turret access (if installed) is located by the crew's bunk room. The lifeboats are accessed on the port and starboard sides in the middle of the passenger stateroom area. The lower deck includes the two cargo holds and the air raft hanger. Engineering is in a large open area in the stern of the ship (no top deck) with access to the jump drives, thrusters, contra-grav lifters and power plant. Fuel is stored all about the ship inside the hull.

The Tranquility has two cargo holds. One is 20 tons, the other one varies, depending on the options selected, from 19 tons to 25 tons. The 20 ton hold is able to be sealed and used to carry extra fuel. Pumps and pipes are included to move the fuel from the hold to the normal fuel tanks and from the fuel tanks to the hold. This gives the Tranquility the ability to use some of her cargo space for extra fuel to increase the jump range in less heavily traveled areas of space.

The standard price does not include the multi-function turret. You can include this turret at a cost of 1.159 MCr. A bunk is provided for the gunner in the standard design even if the turret is not purchased. A missile magazine containing 6 missiles is normally included in addition to the turret, so if the turret is  installed the cargo capacity in the small hold is reduced by 3 tons (to 15std). The turret includes a short range (30kkm) MFD (+6). Changes to the ships statistics when a turret is installed are shown in blue.

Another option, if the turret is not purchased, is to use the turret socket as a life raft jettison tube. This allows conversion of the second jettison tube into 3 tons of cargo space with a savings of 10 KCr, again this impacts the small cargo hold (increasing capacity to 25std).