Why a carrier-sized dry dock still needs investment

How many commercial dry docks could Britain use for naval maintenance?

Only a few are available, and a dock large enough for a carrier still needs investment and suitable facilities before it can perform that work.

Britain is described as having few commercial dry docks available for this purpose. For the Queen Elizabeth class, a dock must have suitable facilities as well as enough physical space. The discussion identifies access to Duqm in Oman and other overseas facilities, and clarifies that Amsterdam was considered for Prince of Wales without the ship actually going there. Several British docks are said to be large enough but require investment. The proposed Portsmouth carrier dock would allow maintenance at the ships' main operating base.