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The DY-500 was a class of early Earth space vehicles. (TOS reference: Spaceflight Chronology)

Service history and disposition[]

MariposaCargo

Schematic on a cargo manifest, accessed in 2364.

The DY-100 class received extensive design and performance reviews to become the DY-500 class. Its almost pure fission engine plant produced a clean gas exhaust who powered a MHD, providing electricity to the ship. At the moment of its commission it was one of the most popular transports. The loss of the DY-500, UNSS Courageous, was the worst tragedy in the first 65 years of space exploration. (TOS reference: Spaceflight Chronology)

Uprated DY-500

An uprated DY-500, circa 2049.

The DY-500 and DY-100 were similar enough in appearance that even experienced Starfleet officers were unable to tell the difference between such ships from a distance. For example, upon first encountering the SS Botany Bay, Captain James T. Kirk initially believed the ship to be a DY-500, it was Spock who correctly identified the ship as an older DY-100 type vessel. (TOS episode: "Space Seed")

In 2155, two DY-500s were involved in the First Battle of Altair VI when they attempted to intercept a Romulan fighter, but were called off by the Columbia. (ENT - The Romulan War novel: Beneath the Raptor's Wing)

The SS Malaspina was a DY-500 class transport in service to United Earth's Merchant Marines in the 22nd century. Malaspina was scrapped in 2169. (Decipher RPG module: Starships)

The Heart of the Storm was an alleged DY-500 active in the 2240s. (TOS novel: Prime Directive)

Known vessels[]

UNSS Wheeler 2019

The Wheeler in 2019.

Dy500 side

The Mariposa in 2123.

Appendices[]

Connections[]

DY series spaceships
DY-100 ships Botany BayCopernicusIbervilleLyons CreekMonticelloSalisburySan JuanSanta MariaShenandoahTerrapinWacosta Emblem of the United Earth.
DY-245 ships Hatteras DY-430 ships Urusei Yatsura
DY-500 ships ConquestCourageousHastingsHeart of the StormHokule'aLord NelsonMalaspinaMariposaSylvaniaTillerToledo SunWheelerYaconaYakima
DY-700 ships Alerica DY-732 ships New ZealandYuri Gagarin
DY-950 ships Eagle Valley DY-1200 ships Velikan
Starship classes and spacecraft types of Earth
ArrowAssistCavalryChristopherCosmosCZ-100DY-100DY-500DY-700DY-1100-classDaedalusDiscoveryDoppler (scout)EdisonGalliantGangesHopkinsHorizonIntrepid (22nd century)J (freighter)LongMarshallMercury (scout)MessierMinutemanNeptuneNXPoseidonStriderVanguard (transport)Verne (Earth)Y (freighter)YorktownZeus Seal of United Earth.

Appearances and references[]

Appearances[]

References[]

External link[]

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