When science-fiction ships lose their operational purpose

What is the worst ship class in a science-fiction franchise?

Nominations include the Type-7 Transport for its weak practical niche, Warhammer grand cruisers for an unclear role, and Andromeda's deep standoff ships for their escort dependence.

The Type-7 nomination rests on poor handling, overheating, limited jump range, and hardpoints that make other ships more attractive for its jobs. Requiring a large landing pad also removes the niche it might have had with a medium-pad design, although that earlier intention is only recalled secondhand. Warhammer grand cruisers are criticized for combining battleship-grade armament with a larger hull and less durability than battlecruisers, without a clear additional role. Andromeda's deep standoff attack ships have formidable missile capability but depend on a formation that keeps opponents away from them. A proposed alternative spends their cost on additional heavy cruisers that can defend themselves, supported by more balanced frigates. The criticism concerns mission and supporting force structure as well as individual ship specifications.