Phalanx CIWS
Following the ship's return from Westlant 18, "Queen Elizabeth" began a maintenance period in early 2019 that saw the installation of the remainder of the ship's self-defence armament, with two Phalanx CIWS mounts fitted. This was followed by the ship's return to Rosyth to allow it to be dry-docked for its first scheduled hull inspection. The remaining Phalanx CIWS and four DS30M mounts will be fitted during 2020.