History of the Renown Class

These two vessels were originally ordered as additional "R" Class battleships, but they were cancelled in 1914 with the start of the war. When Fisher returned as First Sea Lord, he received permission to use the material allocated for the battleships to construct two new battlecruisers.
Fisher touted the easy victory of the British battlecruisers over obsolete German cruisers at the Battle of the Falklands as proof that the battlecruisers were effective at running down commerce-raiders, but the requirement for an unusually shallow draft indicates that he wanted these two ships as part of his great Baltic Invasion Fleet (see the Courageous Class history).
These vessels were very lightly built, and they reverted to the inadequate 6" main belt found on the first-generation battlecruisers. Not only were these ships twice as larger, but also the eight years that had passed between the two classes has seen the increase in gun caliber from 12 to 15 inches. The main belt was very narrow, and covered only part of the waterline.
Fisher set the goal of constructing these two vessels in only 15 months, which had a great effect on the design process. Monitors had already been started to carry two of the 8 turrets ordered for the cancelled battleships, so only 6 turrets were available for the battlecruisers. The machinery of the HMS Tiger was duplicated to save time, but the number of boilers was increased to boost speed. Triple mounts for the secondary battery were chosen for the first time, but in service these mounts proved to unreliable, clumsy to operate, and too crew-intensive. Anti-torpedo bulges were included as part of the design, a first in a capital ship.
Construction took 5 and 6 months longer than expected, but the construction of such large capital ships in such a short time shows that even during a war, the British shipyards were second to none.
Fisher was pleased with the handsome, fast design of these ships. Upon their arrival at Scapa Flow as reinforcements for the Grand Fleet, the knowledge that they were protected on an identical scale to the lost HMS Invincible and HMS Indefatigable horrified Admiral Jellicoe, who described them in his memoirs as "white elephants". Soon after the war they were taken in hand for reconstruction to improve protection over the magazines, and also on the turret roofs. Renown's lightly built hull was damaged during her gun trials, and the pair spent so much time in dockyard hands for minor problems that they earned the nicknames "Refit" and "Repair".

Laid down
Renown: 25 Jan 1915
Repulse: 25 Jan 1915
Launched
Renown: 4 Mar 1916
Repulse: 8 Jan 1916
Completed
Renown: Sep 1916
Repulse: Aug 1916
Commissioned
Renown: 12 Sep 1916
Repulse:14 Aug 1916
Fate
Renown: Sold 1948
Repulse: Sunk 10 Dec 1941
Builders
Renown: Fairfield, Govan
Repulse: John Brown
Complement
967
Displacement
27,947 tons standard, 32,727 full load
Dimensions
750' x 90'
Draught
27' 6" full load
Main guns
6 x 15" L42
(3 x 2)
Secondary guns
17 x 4" (5 x 3, 2 x 1)
Light guns
2 x 3" AA (2 x 1)
4 x 3 -lbs (4 x 1)
Torpedo tubes
2 x 21" submerged
Armour
Belt: 6" sloped
Turrets: 11"
Deck: 3.5"
C.T.: 10"
Machinery
42 Babcock & Wilcox boilers
Turbines
Brown-Curtis
Power output
112,000 shp
Shafts
4
Speed
32.6 kts design
Range
5610 @ 10 kts
Fuel
1000 tons oil normal
4243 tons oil max

HMS Renown:

WWI Service:
1916 - 1918 Grand Fleet, no action

1923-26 Rebuilt, bulges added, catapult fitted, additional armor added
24 x 9" armor plates originally ordered for the Chilean battleship Almirante Cochrane were used in this refit.
23 Jan 1935 Damaged bow in collision with HMS Hood
1936-39 Rebuilt at portsmouth, new engines, new masts, tower superstucture

WWII Service:
1939 Service in South Atlantic hunting for German Raiders
9 Apr 1940 Struck German Gneisenau three times off Norway, damaged by return fire
1940-41 Force H Gibralter, Bismarck operations, Malta convoys, Cape Spartivento
9 Feb 1941 Bombarded Genoa
1942-43 Home Fleet, North Africa, Sabang raid
1945 Reduced to harbor service

19 Mar 1948 Sold and broken up Faslane


HMS Repulse:

WWI Service:
1916 - 1918 Grand Fleet, no action
12 Dec 1917 Collided with HMAS Australia

1919-21 Rebuilt, belt armor increased to 9"
6" belt move up as upper belt
1923-24 World Cruise
Sep 1931 Mutiny at Invergordon
1932-36 Rebuilt, superstructure built up, hanger and catapult added, AA increased
1936-38 Mediterranean service

WWII Service:
1939-41 Home Fleet, Norway Operations, Bismarck Operations
1941 Transfered to Far East as part of Force Z
10 Dec 1941, Sunk by Japanese aircraft bombs and torpedoes off East Coast of Malaya, 327 killed