HMS Indomitable (BC-1911)

 

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The British had stolen a march on the world with the Dreadnought. The next step was to upgrade the Armoured Cruiser in the same way. News was leaked to the world that the new class would follow the Dreadnought but with 9.2" guns. As it turned out the Germans had the Blucher type into production with their superior 8.2" guns aboard before they got the real news of the Invincible class with eight twelve inch. The original Invincible / Indefatigable classes had a set of 12" guns in a very unwieldly lozenge arrangement. It was supposed to allow the central turrets to fire to each side but in practice this damaged the ship more than the enemy. There was enough time between the Dreadnought and Invincible for the Royal Navy to learn of the US Navies South Carolina superimposed armament and follow it with the battlecruisers.

This gives a much better balanced set of ships. The two Australis ships are built to a different layout to make up the six ships built. (see HMAS Tasmania.)



The first pair are laid down in 1905 with one more, each, in 1906 and 1907. These were big and fast ships for the time. The eight inches of side armour was supposed to be 8.2" and 11" German shell proof. The dozen single four inch were for use against destroyers, as it was thought the main armament would be used against any ships above that size, in a battle of the scouts.
 

Displacement 22,000 tons std 25,750 tons full load
Length 620 ft.
Breadth 84 ft
Draught 28 ft
Machinery 4 shaft steam turbines, 60,000shp
Speed 28 knots
Range 7,500 miles at 12 knots
Armour 8" side, 2" deck, 8"/6"/4" turrets
Armament

8 x 10" (4x2)
12 x 4" (12x1)
4 x 3" AA (4x1)
8 x 6pd (8x1)

Complement 750 (800 as Flagship) 765 (810 as Flagship)
Notes Invincible (1908) Sunk at Jutland 1916

Inflexible (1908) To Brazil 1923

Indefatigable (1910) Sunk at Jutland 1916

Indomitable (1911) To Chile 1920

3" AA guns fitted to Indomitable from 1916 onwards.


 

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