Acheron class destroyer

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Acheron or I class
General Characteristics
Displacement:	750 - 790 tons
Length:	246 ft (Acheron 252 ft)
Beam:	26 ft 9 in (Acheron 26 ft)
Draught:	8 ft 6 in (Acheron 9 ft)
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:	30–32 kts
Range:	150–180 tons oil
Complement:	?
Armament:	2 x BL 4 in L/40 Mark VIII, mounting P Mark V 2 x QF 12 pdr 12 cwt Mark I, mounting P Mark I 2 x single tubes for 21 in torpedoes

The Acheron class (officially rated as the I class in 1913) was a class of twenty destroyers of the Royal Navy completed between 1911 and 1912. which served during World War I.

Originally 20 ships, including Acheron were ordered, but three were completed by Yarrow & Company to replace three orders transferred to the Royal Australian Navy as the River class (not to be confused with the River or E class).

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 specials, Acheron was larger and had higher installed power and was consequently faster. Archer and Attack used steam at higher pressures and Badger and Beaver were completed with geared steam turbines for evaluation purposes. The remaining ships were completed to an Admiralty standard design, although those built by Clydebank had Brown-Curtis type tubines and only two shafts.

1 Ships
- 1.1 Builders I class
- 1.2 Admiralty I class
2 Bibliography
3 See also

[edit] Ships

[edit] Builders I class

Acheron — built by John I. Thornycroft & Company, Woolston, completed 1911
Archer — built by Yarrow & Company, Scotstoun, Govan, completed 1911
Ariel — built by Thornycroft, completed 1911, mined while minelaying in North Sea 2 August 1918
Attack — built by Yarrow, completed 1911, torpedoed by German U-boat off Alexandria 30 December 1917
Badger — built by R. W. Hawthorn Leslie & Company, Hebburn, completed 1911
Beaver — built by Hawthorn Leslie, completed 1911

[edit] Admiralty I class

Defender — built by William Denny & Brothers, Dumbarton, completed 1911
Druid — built by Denny, completed 1911
Ferret — built by J. Samuel White & Company, Cowes, completed 1911
Firedrake — built by Yarrow, completed 1912
Forester — built by White, completed 1911
Goshawk — built by William Beardmore & Company, Dalmuir, completed 1911
Hind — built by Clydebank Shipbuilding Company, Clydebank, completed 1911
Hornet — built by Clydebank, completed 1911
Hydra — built by Clydebank, completed 1912
Jackal — built by Hawthorn Leslie, completed 1911
Lapwing — built by Cammell-Laird & Company, Birkenhead, completed 1911
Lizard — built by Cammell-Laird, completed 1911
Lurcher — built by Yarrow, completed 1912
Oak — built by Yarrow, completed 1912
Phoenix — built by Vickers, Barrow-in-Furness, completed 1911, torpedoed by German U-boat in Adriatic Sea 14 May 1918
Sandfly — built by Swan Hunter & Wigham Richardson, Wallsend, completed 1911
Tigress — built by Hawthorn Leslie, completed 1911