The MC-18 measured 23.6 meters in length, and could transport up to five passengers and 50 metric tons of cargo.
Like all Mon Calamari designs, the MC-18 was custom-built, and no two ships were exactly the same. It also was equipped with a backup shield generator, as was standard Mon Calamari practice. It had a landing claw, standard landing gear, and inflatable puncture-proof pontoons for water landings. The MC-18 was also submersible (maximum depth 1,000 meters). When submerged, its shields had to be reconfigured to handle the strong exterior pressure and this weakened the shields versus other attacks.