3.7 DY-430 Class Transport

A profile of the DY-430 class transport, an enlarged interstellar development of the uprated DY-500 and the first Dyson-Yoyodine design with a spiked-antimatter engine, including its specifications and record-setting voyages.

DY-430 (design by Roger Sorenson; schematic courtesy of the Journal of Applied Treknology)

“Beam rider” spacecraft test near Jupiter (2032)

Preparing for the Kzinti (2049)

Major General Hans Dietrich, UESF Combined Forces Commander, Battle of the Sol System

A DY-series takes out a Kzinti cruiser (2049)

The DY-430 took the proven success of the uprated DY-500 design and enlarged it in anticipation of interstellar voyaging. It was the first Dyson-Yoyodine design to employ a spiked-antimatter engine design, similar to but smaller than that first used in the Columbus class explorers. The needs of the Earth-Kzin Wars saw all of these appropriated by the UESF as armed interstellar transports. After the war they were returned to civilian use, where many found a new life as impromptu colony ships. At least one, the S.S. Urusei Yatsura (named after a popular fictional character of the day) would make it as far as the Ficus Sector, setting the all-time single-journey range record for a sub-light Dyson-Yoyodine spacecraft.

Service entry date (old calendar): 2048.

Specifications

Length: 130 m
Beam: 53 m
Draft: 45 m
Mass: 38,500 DWT
Crew: 20 (+ 100 colonists)
Range: 5 years at 0.35c
Maximum speed: 475,000 km/hr