HMS Edinburgh (1882)

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Edinburgh, probably early in her career
History
United Kingdom
NameHMS Edinburgh
BuilderPembroke Dockyard
Laid down20 March 1879
Launched18 March 1882
Completed8 July 1887
FateBroken up, Thos. W. Ward 1910
General characteristics
Class and type
ironclad
Displacement9,420 long tons (9,570 t)
Length325 feet (99.1 m)
lpp
Beam68 ft (21 m)
Draught25 ft 9 in (7.85 m)
Installed power
Propulsion
Speed16 knots (30 km/h; 18 mph)
Complement396
Armament
  • 4 ×
    BL 12 in (305 mm) guns
  • 5 ×
    BL 6 in (152 mm) guns
  • 4 ×
    6-pounder
  • 2 × 14-inch torpedo tubes
Armour

HMS Edinburgh was an ironclad battleship of the

Colossus class which served in the Royal Navy of the Victorian era. She was the sister ship of HMS Colossus
, being started before her but being completed after.

Edinburgh was the first British battleship since

110-pounder Armstrong
breech-loading guns, which had not proved satisfactory, to complement her 26 muzzle-loaders.

Edinburgh's guns were carried in two turrets positioned near the centre of the ship, and the turrets were mounted en echelon. It was expected that, by mounting the turrets in this way, at least one gun from each turret could fire fore and aft along the keel line, and all four guns could fire on broadside bearings; it was intended that every part of the horizon could be covered by at least two guns. In practice it was found that firing too close to the keel line caused unacceptable blast damage to the superstructure, and cross-deck firing similarly caused damage to the deck.

Before Edinburgh the positioning of the conning tower in British ironclads had produced a variety of solutions; the difficulty was that the two important factors involved, maximum protection and maximum visibility, were essentially mutually incompatible. In this ship the conning tower was positioned forward of the foremast for good all-round vision; the chart-house was, however, placed on its roof, and the whole area surrounded by small guns, stanchions and other obstructions to the view. The problem was not solved until the political will to build larger ships in turn allowed more space for command facilities.

Design

The design for the Colossus class was based on the earlier

breech-loading guns to Royal Navy service, along with a secondary battery, a feature not included in older ironclads. The new ship also incorporated compound armour instead of the traditional wrought iron armour used in earlier vessels. In addition, the ships' hulls were constructed with steel, not iron.[1]

Brassey's Naval Annual
, 1896

Edinburgh was 325 feet (99.1 m)

amidships. Her engines provided a top speed of 16 knots (30 km/h; 18 mph) at 6,808 indicated horsepower (5,077 kW), exceeding the contracted performance by 2 knots (3.7 km/h; 2.3 mph) and 800 ihp (600 kW).[1][2]

The ship was armed with a

gun turrets, which were placed en echelon amidships, fore and aft of the funnel. Edinburgh also carried a secondary battery of five BL 6-inch (152 mm) breech-loading guns. These were carried in individual pivot mounts, one on either side of the forward superstructure, another pair abreast the aft superstructure, and the final gun on the upper deck at the stern. She also carried four QF 6-pounder guns for defence against torpedo boats. As was customary for capital ships of the period, she was equipped with a pair of 14-inch (356 mm) torpedo tubes.[1]

Edinburgh's

armoured citadel was 14 to 18 inches (356 to 457 mm) thick on the sides and reduced to 13 to 16 in (330 to 406 mm) on its rounded bulkheads, where it was intended to deflect incoming projectiles. It was 123 ft (37 m) long, slightly more than a third of the ship's length, and covered the ship's ammunition magazines and propulsion machinery spaces. She carried a protective deck that was 2.5 to 3 in (64 to 76 mm) thick and sloped downward at the sides. Above and below the deck, coal storage spaces were arranged to provide additional defence against gunfire. The main battery turrets had 14 to 16 in of armour plate, and the conning tower had 14 in sides.[1]

Service history

Edinburgh at sea, date unknown

The

Rear Admiral Edward Seymour. She was assigned to Group 1 of the fleet, which also included her sister ship Colossus, the recently completed pre-dreadnought battleship Barfleur, and the ironclads Alexandra, Benbow, and Inflexible, and the protected cruiser St George. The exercises lasted around 36 hours before the results were decided in favour of "Blue" fleet. During the manoeuvres, Edinburgh was judged to have been disabled by coastal artillery at Belfast.[5]

In August 1895, Edinburgh was again reactivated to take part in the annual fleet manoeuvres as part of the Reserve Fleet. At that time, the capital ships assigned to the fleet included Colossus, Alexandra, Benbow, and the ironclad Dreadnought.The ships were mobilised at Torbay in early August, went to sea on the 8th, and carried out various training exercises, including shooting practice and tactical manoeuvres, before returning to port on 20 August.[6] During the 1896 fleet manoeuvres, Edinburgh, Colossus, Alexandra, and Benbow were joined by the old ironclad Sultan in Fleet C, one of four organized for the exercises. Fleet C operated in concert with Fleet D, again commanded by Seymour. He was given the objective to combine his fleets and either defeat the strong A and B fleets in detail or to reach the fortified port of Lough Swilly. The ships went to sea on 24 July and by the morning of 30 July, Seymour had succeeded in uniting his fleets but failed to bring Fleet A to battle, and therefore took his ships to Lough Swilly.[7]

She was then placed in reserve from 1897 until 1899.

coronation of King Edward VII.[13]

In 1908 she was converted for use as a target ship, being fitted with fully backed and supported modern armour plates; the intention was to test and measure the effect on these plates of oblique impact by armour-piercing shells filled with

British Atlantic Fleet, and this instruction was not carried out. At the Battle of Jutland
many British armour-piercing shells either did not pierce German armour, or did so but failed to explode, because of this failing.

Edinburg was ultimately sold to

Notes

  1. ^ a b c d e f g h i Lyon & Roberts, p. 27.
  2. ^ Brassey 1886, p. 183.
  3. ^ Brassey 1886, pp. 181–184.
  4. ^ Brassey 1898, p. 13.
  5. ^ Thursfield 1895, pp. 60–77.
  6. ^ Gleig, pp. 176–177.
  7. ^ Thursfield 1897, pp. 147–159.
  8. ^ Brassey 1898, pp. 12–15.
  9. ^ Thursfield 1898, pp. 128–129.
  10. ^ Brassey 1899, p. 427.
  11. ^ Thursfield 1901, pp. 90–97.
  12. ^ "Naval & Military intelligence". The Times. No. 36602. London. 2 November 1901. p. 13.
  13. ^ "The Coronation - Naval Review". The Times. No. 36845. London. 13 August 1902. p. 4.

References

Further reading