Galaxy class
From Tardis Wiki, the free Doctor Who reference
Galaxy class was a rating for a passengerstarship. Large and luxurious, they could go for years between landfall and typically could produce their own air.
The Thrasymachus was a Galaxy Class starliner on which Amy Pond and Rory Williams honeymooned. It almost crashed until the Eleventh Doctor and Kazran Sardick had Abigail Pettigrew sing the skies calm. (DW: A Christmas Carol)
The Byzantium was a Galaxy Class starship that Weeping Angels crashed onAlfava Metraxis. (DW: The Time of Angels)
