By 1949 two alternative fits for the "Tiger"s had been drawn up: one as pure anti-aircraft cruisers with six twin mountings of the new 3-inch 70 calibre design, and one with QF 6-inch Mark N5 guns in two twin Mark 26 automatic mountings and three twin 3-inch/70s. In historical terms, this represented a light armament, and similar US weapons introduced on had experienced considerable problems with jamming and had performed below expectation, being largely prototypes for 8-inch/55 A third lower-cost option of fitting two Mk 24 turrets in 'A' and 'B' positions and two to four 's semi-automatic Mk 6 twin 4.5-in 'X' and 'Y' and on the flanks was considered during the Korean War. However the mix of Mk 24 triples and Mk 6 4.5-inch mounts required a crew of crew of 900+ But like the Colony-class in the 1950s, only 1, A 6-inch turret, would have been manned and as with proposed, 1951 Bellona Mk 2, the main armament was the four twin Mk 6 4.5 turrets for AA defence, but the RN 4.5-inch was not a good postwar AA weapon. The six Mk 24 turrets and not even, finished or tested. However, much of the original DC wiring used by the Mk 24 turrets had been stripped from the "Tiger"s in 1948; there was a strong desire that the new cruisers should have AC power, not DC or dual.