The first of these was mounted on the top of the island shortly before she was completed in July 1942 and the other was added later in the year. This latter system was fitted on the port side of the hull, outboard of the aft lift.
The first of these systems was installed on top of the island before she was finished in July 1942, and the second was added later that year. This latter system was fitted to the port side of the hull, outside the aft lift.