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The USS Spann was a Ranger-class explorer in service in the 23rd century. (Decipher RPG module: Starfleet Operations Manual)
In 2244, the Spann fought with Federation starships at the Battle of Donatu V against a Klingon fleet. (Decipher RPG module: Starfleet Operations Manual)
| 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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