The DY-430 was a type of Earth starship that was utilized during the 22nd century. (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 desk 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 "Up The Long Ladder”.
Ships commissioned
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