To remedy prior design flaws, the new vessel was fitted with improved deflector shield generators and multiple backup S-6 hyperdrive generators, ensuring hyperspace ability and crew safety while retaining the high speed and sleek aerodynamics that exemplified its predecessor.
In accordance with Naboo custom for diplomatic ships, the barge was unarmed, instead relying on its high speed, powerful shields, and fighter escort to escape enemy fire. Because of the limited range of most escort fighters, the barge was equipped with four under-wing recharge sockets for use by N-1 starfighters during long voyages.
Being a luxury vessel, the barge was equipped with many of the same amenities that marked other high-level diplomatic ships: spacious crew stations, four large luxury chambers, and six cabins for guards.
The ship also had parlor rooms, where there was one or more Dejarik boards.
History
The vessel was used to transport SenatorPadmé Amidala to Coruscant in 22 BBY on the day of the vote of the Military Creation Act. On that gloomy day, the starship was destroyed seconds after landing by Zam Wesell, a bounty hunter, in an attempt to assassinate the senator. Zam failed, because Senator Amidala used a decoy on the barge to fool any potential assassins. The Senator survived the attempt, having disguised her self as an escort fighter pilot, but her handmaiden Cordé perished in the blast.
After the destruction of her former diplomatic barge, Senator Amidala either had it restored or used an entirely new J-type vessel for future diplomatic missions to Mandalore and Alderaan.
Behind the scenes
The design of the ship resembles that of the Northrop YB-49 bomber and the RQ-3 Dark Star, though the finished product more closely resembles (and sounds like) a 1930s commercial propeller-plane.
The sound effects for the engine noise were created from several fly-bys from a vintage Vickers Vimy, primarily done on the ground.