Being laid up all week with flu has its downsides and upsides. One positive is that I've had time and just enough concentration to throw together an entry.
The starting point is Garlicdesign's excellent Admiral class heavy cruiser design which I have stripped down and redrawn with a host of post-war structures and equipment.
In 1942 the Admiralty concerned that the threat from German surface raiders, especially the heavy cruisers and battlecruisers lurking in Norwegian Fjords ordered the construction of four Admiral class heavy cruisers. Shipyard commitments saw work progress slowly by 1943 in favour of the Colossus and Majestic class light fleet carriers and smaller escorts. By 1945 the hulls for
Collingwood and
Hawke had been launched with
Byng and
Cochrane nearly ready for launching when the war ended and the need for heavy cruisers seemed over.
The Admiralty raised many schemes for completing the Tigers and Admirals as the core of the post-war cruiser fleet but monetary restrictions and development problems saw these plans drawn out and reduced in scale. By 1947
Byng and
Cochrane had been launched to clear their slips. The re-emergence of the Soviet Navy with a powerful fleet of Sverdlov class cruisers supported by Stalingrad class battlecruisers created the need to re-look at the the cruiser fleet. The 15,500 ton Admirals seemed suited to the requirement with their powerful 8in guns sitting unused at Barrow-in-Furness and the Admiralty began a fresh batch of sketch designs.
Although three conversions were wanted, the Admiralty's insistence on keeping Tiger and Lion saw
Cochrane removed from the programme and she was scrapped in 1953,
Byng had already been disposed of.
Rebuilt between 1953 and 1956
Collingwood and
Hawke emerged as powerful cruisers. The superstructure was completely rebuilt and the machinery was overhauled and fitted for NBC protection.
Specifications
15,500 tons
677ft (oa), 671ft (wl), 82ft (beam), 20ft 6in (draught - not including sonar domes), 25ft 6in (draught - including sonar domes)
Powerplant
Steam turbines, four shafts, 120,000hp
31kts (clean)
7,000nm at 24kts
Armour
4.5in belt, 2in deck
Armament
3x3 8in (200 rpg) (fire-control by 2x LRS-1 directors with Type 901 radar and 2x MRS-5 directors)
4x2 3in L/70 (450 rpg) (fire-control by 4x MRS-3 directors)
2x2 40mm L/70 (fire-control by 2x MRS-3 directors)
1x 'Double Ruler' anti-torpedo rocket/mortar launcher
Electronics
Type 960 air-search radar
Type 293Q target-indication
Type 277Q surface search/height-finder
Type 978 navigation radar
Type 174 and Type 170 sonars
Type 667/668 'Cooky' jammers
Although capable ships they were expensive to maintain and operate (and were becoming dated in the missile age) and in 1966 and 1967 both were laid up and after a short time in reserve were decommissioned and sold for scrapping in 1971.