DY-500 class

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DY-500 class
Affiliation: Earth
Active: 22nd century
SS Mariposa.jpg


SS Mariposa via DeviantArt fan art


The DY-500 class was the designation for an Earth starship class that was in service during the early 22nd century.

This class of vessel utilized Yoyodyne pulse fusion drive types and were considerably more advanced than the much older DY-100 class.


At least three sub-classes of this design were in service during the 2120s:

  • The DY-500 subclass: The SS Mariposa was of this sub-class.
  • The DY-500-B subclass: The SS Hokule'a was of this sub-class.
  • The DY-500-C subclass: The HMS Lord Nelson was of this sub-class.



Fun Fact

The novel "Prime Directive" states that the main hulls of DY-500s were surplus submarine shells reconfigured to transport cryogenic cargo in space.