HMS Neptune (20)

HMS Neptune in 1937
History
United Kingdom
Name	HMS Neptune
Builder	Portsmouth Dockyard
Laid down	24 September 1931
Launched	31 January 1933
Commissioned	12 February 1934
Identification	Pennant number: 20
Motto	Regnare est servire (Latin: "To reign is to serve")
Fate	Sunk 19 December 1941 by mines off Tripoli
General characteristics
Class and type	Leander-class light cruiser
Displacement	7,270 tons standard 9,740 tons full load
Length	554.9 ft (169.1 m)
Beam	56 ft (17 m)
Draught	19.1 ft (5.8 m)
Installed power	72,000 shaft horsepower (54,000 kW)
Propulsion	4 × Parsons geared steam turbines 6 × Admiralty 3-drum oil-fired boilers Four shafts
Speed	32.5 knots (60 km/h)
Range	5,730 nautical miles (10,610 km) at 13 knots (24 km/h)
Complement	peacetime 550 wartime 680
Sensors and processing systems	type 284/286 air search radar type 273/271 surface search type 285 6 inch (152 mm) fire control type 282 40 mm fire control
Armament	Original configuration: 8[1] × BL 6 inch Mk XXIII naval guns[2] 4 × 4-inch (102 mm) guns 12 × 0.5 in machine guns 8 × 21 inch (533 mm) torpedo tubes
Armour	4 in (102 mm) main belt 2.5 in (64 mm) ends 1.25 to 2 in (32 to 51 mm) deck 1 in (25 mm) turrets
Aircraft carried	One catapult-launched aircraft Original type was a Fairey Seafox catapult and aircraft later replaced with Supermarine Walrus

HMS Neptune was a Leander-class light cruiser which served with the Royal Navy during World War II. Neptune was the fourth ship of its class and was the ninth Royal Navy vessel to carry the name.