Bay

The Bay class was built for the Royal Fleet Auxiliary as a group of landing ship dock auxiliaries supporting British amphibious operations. The Royal Navy profile of RFA Lyme Bay identifies it as a Bay-class landing ship dock, while Naval Technology records the class entering service in the 2006-2007 period. The program provided vehicle, stores, landing craft, and troop-support capacity without the cost of a full assault ship.

Bay-class design is centered on moving heavy equipment and people from sea to shore. A well dock carries landing craft, while vehicle decks and ramps support trucks, armored vehicles, and stores. The flight deck allows helicopter operations, and the RFA crewing model helps sustain logistics missions. The ships are less heavily armed than combatants because their value lies in lift, persistence, and cargo flow.

In service, Bay-class vessels have been used for more than traditional amphibious assault support. Their capacity makes them useful for disaster relief, evacuation support, counter-narcotics logistics, and regional presence. The sale of Largs Bay to Australia also shows the design's broader utility: a relatively economical landing ship dock can become a major national support asset for several navies.