Galactic Survey Cruiser.
|starship exterior image|
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The Byrd-class galactic survey cruiser (also called exploratory cruiser) was a type of starship...
The USS Byrd (NCC-21080) was the lead ship and prototype for the Byrd-class exploratory...
The USS Challenger (NCC-21087) was a Byrd-class exploratory cruiser on active duty in Starfleet...