HMS G5

	A G-class submarine before bow modification.
History
United Kingdom
Name	G5
Builder	Chatham Dockyard
Laid down	12 October 1914
Launched	23 November 1915
Commissioned	17 January 1916
Fate	Sold for scrap, 25 October 1922 to John Cashmore Ltd, Newport.
General characteristics
Class and type	G-class submarine
Displacement	703 long tons (714 t) surfaced; 837 long tons (850 t) submerged;
Length	187 ft 1 in (57.0 m)
Beam	22 ft 8 in (6.9 m)
Draught	13 ft 4 in (4.1 m)
Installed power	1,600 bhp (1,200 kW) (diesel); 840 hp (630 kW) (electric motor);
Propulsion	2 × diesel engines ; 2 × electric motors;
Speed	14.25 knots (26.39 km/h; 16.40 mph) surfaced; 9 knots (17 km/h; 10 mph) submerged;
Range	2,400 nmi (4,400 km; 2,800 mi) at 12.5 kn (23.2 km/h; 14.4 mph) surfaced
Complement	30
Armament	4 × 18-inch (45 cm) torpedo tubes ; 1 × 21-inch (53.3 cm) torpedo tube;

Last updated November 15, 2024

HMS G5 was a British G-class submarine built for the Royal Navy during World War I.

Description

The G-class submarines were designed by the Admiralty in response to a rumour that the Germans were building double-hulled submarines for overseas duties. The submarines had a length of 187 feet 1 inch (57.0 m) overall, a beam of 22 feet 8 inches (6.9 m) and a mean draft of 13 feet 4 inches (4.1 m). They displaced 703 long tons (714 t) on the surface and 837 long tons (850 t) submerged. The G-class submarines had a crew of 30 officers and ratings. They had a partial double hull.^[1]

For surface running, the boats were powered by two 800- brake-horsepower (597 kW) Vickers two-stroke diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 420-horsepower (313 kW) electric motor. They could reach 14.25 knots (26.39 km/h; 16.40 mph) on the surface and 9 knots (17 km/h; 10 mph) underwater. On the surface, the G class had a range of 2,400 nautical miles (4,400 km; 2,800 mi) at 16 knots (30 km/h; 18 mph).^[1]

The boats were intended to be armed with one 21-inch (53.3 cm) torpedo tube in the bow and two 18-inch (45 cm) torpedo tubes on the beam. This was revised, however, while they were under construction, the 21-inch tube was moved to the stern and two additional 18-inch tubes were added in the bow. They carried two 21-inch and eight 18-inch torpedoes. The G-class submarines were also armed with a single 3-inch (7.6 cm) deck gun.^[1]

Career

Like the rest of her class, G5's role was to patrol an area of the North Sea in search of German U-boats. She survived the war, and was sold for scrap in 1922.

Notes

1 2 3 Gardiner & Gray, p. 90

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References

Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.
Gardiner, Robert & Gray, Randal, eds. (1985). Conway's All the World's Fighting Ships 1906–1921. Annapolis, Maryland: Naval Institute Press. ISBN 0-85177-245-5.
McCartney, Innes (2008). British Submarines of World War I. New Vanguard. Vol. 145. Oxford, UK: Osprey. ISBN 978-1-84603-334-6.

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[gg9-1] 1 2 3 Gardiner & Gray, p. 90

[1]

v t e British G-class submarines
G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15^X
Preceded by: W class Followed by: H class
X Cancelled
List of submarines of the Royal Navy List of submarine classes of the Royal Navy