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The USS Duncan was a Federation starship, a Ranger-class explorer in Starfleet service in the 23rd century. (Decipher RPG module: Starfleet Operations Manual)
 This article is a stub relating to a starship or vehicle. You can help our database by expanding on it.
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| Ranger-class starships | ||
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Bastion • Carolina • Challenger • Coronado • Decatur • Duncan • Explorer • Halsey • Indomitable • Orleans • Ranger • Revere • Sal'koth • Solzhenitzyn • Spann • Springfield • Valiant | 
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