Acheron class destroyer

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Class overview
Built: 19111912
In commission: 19111922
Completed: 23
Lost: 3
General characteristics
Displacement: 750 to 790 tons
Length: 246 ft (75 m) to 252 ft (77 m)
Beam: 26 ft (7.9 m) to 26 ft 9 in (8.2 m)
Draught: 8 ft 6 in (2.6 m) to 9 ft (2.7 m)
Propulsion: Yarrow-type (Ferret, Forester; White-Forster) oil-fired boilers
3 shaft Parsons steam turbines (Hind, Hornet, Hydra; 2 shaft Brown-Curtis)
13,500 shp (Acheron; 20,000 shp)
Speed: 30 knots (55.6 km/h)–32 knots (59.3 km/h)
Armament: 2 × BL 4 in L/40 Mark VIII, mounting P Mark V
2 × QF 12 pdr 12 cwt Mark I, mounting P Mark I
2 × 21 in (530 mm) torpedo tubes

The Acheron class (officially redesignated as the I class in October 1913) was a class of twenty destroyers of the Royal Navy, all built under the 1910-11 Programme and completed between 1911 and 1912, which served during World War I (see [1]).

Originally 20 ships, including Acheron were ordered, but an additional three were completed by Yarrow & Company. They were generally similar to the River class of the Royal Australian Navy.

The Acherons were generally repeats of the preceding Acorn or H class, although Acheron herself and five others were builders' specials. They differed from the Acorns in having only two funnels, both of which were short, the foremost being thicker than the after stack. The 12-pounder guns were mounted slightly further forward than in the Acorns.

Of the builders' designs, Acheron and Ariel were longer, had higher installed power and were consequently faster. Archer and Attack used steam at higher pressures and Badger and Beaver were completed with geared steam turbines for evaluation purposes. Fourteen of the class were completed to an Admiralty standard design, although those built by John Brown and Company at Clydebank had Brown-Curtis type turbines and only two shafts.

Sir Alfred Yarrow maintained that it was possible to build strong, seaworthy destroyers with a speed of 32 knots, and eventually a contract for three such boats was placed with the firm. They were a little larger than the rest of the class but carried the same armament. Firedrake, Lurcher and Oak were, however, distinctive in appearance and indeed much faster. They all exceeded their contract speed, Lurcher making over 35 knots.

This class of TBDs (Torpedo Boat Destroyers, usually called "boats") handled well and were excellent sea boats; like similar classes of TBDs of the time, they had open bridges but were much more dry at sea than was the norm.

Contents

[edit] Ships

[edit] Builders I class

[edit] Admiralty I class

[edit] Special I class

[edit] Bibliography

  • Destroyers of the Royal Navy, 1893-1981, Maurice Cocker, 1983, Ian Allan ISBN 0-7110-1075-7
  • The British Destroyer by Captain T D Manning CBE VRD RNVR (Ret'd), (Putnam, 1961)

[edit] See also