The ''Beagle'' class (officially redesignated as the G class in 1913) was a
class of sixteen
destroyer
In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort
larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in ...
s of the
Royal Navy, all ordered under the 1908-1909 programme and launched in 1909 and 1910. The ''Beagle''s served during
World War I, particularly during the
Dardanelles Campaign of 1915.
Design
For the 1908–1909 shipbuilding programme, the
British Admiralty
The Admiralty was a department of the Government of the United Kingdom responsible for the command of the Royal Navy until 1964, historically under its titular head, the Lord High Admiral – one of the Great Officers of State. For much of it ...
decided to revert to a smaller, more affordable destroyer to follow-on from the large and fast (required to reach ) and the experimental . The destroyers needed sufficient range to operate across the
North Sea in the event of a confrontation with Germany, which rendered the coastal destroyers which had been built as a low-cost supplement to the expensive Tribals outdated, requiring larger numbers of a cheaper standard destroyer.
[Friedman 2009, pp. 108, 114.][Gardiner and Gray 1985, p. 74.] While the Tribals were oil fuelled, it was decided to return to the use of
coal for the new destroyers, because of concerns over the availability of
oil stocks in the event of a war and to reduce costs. They were the last British destroyers to be so fueled.
[Friedman 2009, p. 118.][Manning 1961, p. 55.]
The ''Beagle''s were not built to a standard design, with detailed design being left to the builders of individual ships in accordance with a loose specification.
[Brown 2010, p. 68.] They were between and long
between perpendiculars, with a
beam of between and , with an average
draught of .
[Gardiner and Gray 1985, p. 73.] It was expected that the ships would
displace but the builder's designs came out heavier,
at about normal and full load.
Five
Yarrow or White-Forster boilers fed direct-drive
steam turbine
A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbin ...
s driving three propeller shafts. The machinery was rated at to give a speed of .
[Brown 2010, p. 69.] Three funnels were fitted.
[Friedman 2009, p. 116.]
The ''Beagle'' class was designed to carry a gun armament of five 12-pounder (76 mm) guns, with two mounted side by side on a raised platform on the ship's
forecastle, two on the ship's beams, with the port gun mounted ahead of the starboard gun and one aft. While the ships were building, however, it was decided to replace the two forecastle guns by a single gun, giving a gun armament of one
BL 4 inch naval gun Mk VIII
The BL 4-inch Mark VIII naval gunMark VIII = Mark 8. Mark XI = Mark 11. Britain used Roman numerals to denote marks (models) of ordnance until after World War II. This was the eighth model of British BL 4-inch gun. was a British medium-velocit ...
and three
QF 12-pounder 12 cwt guns) Torpedo armament consisted of two
torpedo tubes, with one between the ship's
funnels
A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening.
Funnels are usually made of stainless steel, aluminium, glass, or plastic. The material used in its constr ...
and the aft gun, and one right aft at the stern of the ship. These torpedoes had a range of at or at . Two spare torpedoes were carried.
[Friedman 2009, pp. 116, 118.][Gardiner and Gray 1985, pp. 73–74.]
Wartime modifications included replacement of the aft torpedo tube by a
3-pounder (47 mm) anti-aircraft gun in some ships,
while
depth charge
A depth charge is an anti-submarine warfare (ASW) weapon. It is intended to destroy a submarine by being dropped into the water nearby and detonating, subjecting the target to a powerful and destructive Shock factor, hydraulic shock. Most depth ...
s were also fitted.
[Friedman 2009, p. 116.]
The ''Beagle''s were followed, in the 1909-10 Programme, by the (later known as the H class).
Service
As the ''Beagle''s completed in 1910, they joined the 1st Destroyer Flotilla of the Royal Navy's
Home Fleet
The Home Fleet was a fleet of the Royal Navy that operated from the United Kingdom's territorial waters from 1902 with intervals until 1967. In 1967, it was merged with the Mediterranean Fleet creating the new Western Fleet.
Before the First ...
.
but in 1913 they were sent to the
Mediterranean,
[Manning 1961, p. 26.] where they formed the 5th Flotilla, remaining there on the outbreak of the
First World War.
They were officially redesignated the G class in October 1913 as part of a general re-designation of the Royal Navy's destroyers.
[Gardiner and Gray 1985, pp. 18, 74.] The ''Beagle'' class spent most of the war in the Mediterranean, with several taking part in the
Dardanelles Campaign. Late in 1917, the ships of the class were recalled to British waters, where three ships were lost to accidents, two by running aground and one to collision.
Being coal-fired, they were obsolete by the end of the First World War and the surviving ships were all scrapped by the end of 1921.
Ships
Notes
Citations
Bibliography
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{{WWI British ships
Destroyer classes
Ship classes of the Royal Navy