DY-430 type starship displayed on a monitor
The DY-430 was a type of Earth starship that was utilized during the 22nd century. In use as early as 2146, mission profiles included nebula survey projects. (TNG: "Up The Long Ladder" okudagram)
The name of this ship type was mentioned in a list of ships that were launched from Earth, with destinations in or near to the Ficus sector, between the years 2123 and 2190. This list was displayed on Jean-Luc Picard's desktop monitor in his ready room aboard the USS Enterprise-D. A legible version of the okudagram first appeared in the reference book, Star Trek: The Next Generation - The Continuing Mission. The list became legible to viewers with the remastered episode.
Ships commissioned 
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| DY-class starships |
|---|
| DY-100: SS Botany Bay |
| DY-245: SS Hatteras • DY-430: SS Urusei Yatsura |
| DY-500: SS Mariposa · HMS Lord Nelson (DY-500-B) · SS Hokule'a (DY-500-C) |
| DY-732: VK Yuri Gagarin · HMS New Zealand (DY-732 [N]) |
| DY-950: DEV Eagle Valley • DY-1200: VK Velikan |
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