Devonshire class armoured cruisers

World War 1 Naval Combat

World War 1 Naval Combat

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hms devonshire Devonshire Class.  The twin 6 inch turrets of the Monmouth class were replaced with single 7.5 inch guns.  Two more 7.5 inch guns were added to the design during construction, these replacing the forward casemated 6 inch guns.  The class reverted to a four funnel layout.

HMS Devonshire
Built Chatham Dockyard, laid down March 1902, completed October 1905.

HMS Antrim
Built London and Glasgow, Glasgow, laid down August 1902, completed June 1905.

HMS Argyll
Built Scott, Greenock, laid down September 1902, completed December 1905.

HMS Carnarvon
Built Beardmore, Dalmuir, laid down October 1902, completed May 1905.

HMS Hampshire
Built Armstrong, Elswick, laid down September 1902, completed July 1905.

HMS Roxburgh
Built London and Glasgow, Glasgow, laid down June 1902, completed September 1905.

Average cost 850,000.

Size:
Length 450 feet pp 473 feet 6 inches overall, beam 68 feet 6 inches, draught 24 feet, displacement 10,850 tons load.

Propulsion:
2 shaft triple expansion engines, 21,000 ihp, 22 knots

Trials:
Devonshire 21,475 ihp = 22.97 knots
Antrim 21,604 ihp = 23.2 knots
Argyll 21,190 ihp = 22.28 knots
Carnarvon 21,489 ihp = 23.3 knots
Hampshire 21,508 ihp = 23.4 knots
Roxburgh 21,875 ihp = 23.63 knots.

Armour:
6-2in belt, 6in barbettes, 5in turret faces, 2-0.5in decks

Armament:
4 x 7.5in (4 x 1), 6 x 6in Mk VII (6 x 1), 18 x 3pounder (18 x 1), 2 x 18in TT

Comments:
An attempt at an improves Monmouth class with only a modest size increase in size, the class had with a heavier main armament and thicker but narrower belt armour.  Crew 655.

World War 1 Service:
Devonshire
3rd Cruiser Squadron Grand Fleet.
6 August 1914 Captured German merchant ship.
September 1914 Refit at Cromarty.
1916 Nore.
July 1916 7th Cruiser Squadron.
December 1916 West Indies and North America Station.
1920 Sold for scrap.

Antrim
3rd Cruiser Squadron Grand Fleet.
6 August 1914 Captured German merchant ship.
9 October 1914 Unsuccessfully attacked by German submarine.
June 1916 Archangel.
1916-December 1917 West Indies and North America Station.
August 1918 Trials ship.
1922 Sold for scrap.

Argyll
3rd Cruiser Squadron Grand Fleet.
6 August 1914 Captured German merchant ship.
28 October 1915 Ran aground and wrecked on Bell Rock.

Carnarvon
5th Cruiser Squadron  as Flagship.
24 August 1914 Captured German merchant ship.
October 1914 Montevideo as part of hunt for Admiral Graf Spee.
12 December 1914 Took part in the Battle of the Falkland Islands.
February 1915 Ran aground off Abrolhos Rocks and repaired at Rio de Janeiro.
1916 Onwards West Indies and North America Station.
1921 Sold for scrap.

Hampshire
China Station.
11 August 1914 Captured a German merchant ship.
August 1914 Too part in hunt for SMS Emden.
December 1914 Grand Fleet, joining 7th Cruiser Squadron the following month.
November 1915 Escort of merchant shipping in the White Sea.
1916 2nd Cruiser Squadron Grand Fleet.
31 May 1916 Took part in the Battle of Jutland.
5 June 1916 Sunk by a mine with the loss of 650 men including Lord Kitchener.

Roxburgh
3rd Cruiser Squadron Grand Fleet.
6 August 1914 Captured German merchant ship.
20 June 1915 Damaged by torpedo from German submarine U39.
April 1916 Operated in Norwegian waters.
1916 West Indies and North America Station.
24 May 1917 Escorted first convoy from Hampton Roads, Virginia.
12 February 1918 Rammed and sank German submarine U89 off Northern Ireland.
1921 Sold for scrap.

HMS Carnarvon.  In order to keep the size increase on the Monmouth class to a minimum an decrease in top speed of 0.75 knots was accepted.  Different ships in the class carried different boilers in order to test which were the best type of water tube boiler for future use although they all used the same cylindrical boilers in their rear boiler rooms.  hms carnarvon

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