Valiant-class
From Tardis Wiki, the free Doctor Who reference
Following its destruction in the Planetary Relocation Incident, the Valiant was replaced by a new Valiant-class aircraft carrier, one of multiple planned sister ships. (PROSE: UNIT History [+]Loading...["UNIT History (short story)"]) Indeed, the Twelfth Doctor and Kate Stewart acknowledged the existence of what the former called "Cloudbase" during the 3W Institute Affair. (TV: Death in Heaven [+]Loading...["Death in Heaven (TV story)"])