HMS K4 facts for kids

HMS K4 beached on Walney Island
Quick facts for kids History
United Kingdom
Name	HMS K4
Builder	Vickers, Barrow-in-Furness
Laid down	28 June 1915
Launched	13 July 1916
Commissioned	1 January 1917
Fate	Sunk, 31 January 1918
General characteristics
Class and type	K-class submarine
Displacement	1,980 long tons (2,010 t) surfaced 2,566 long tons (2,607 t) submerged
Length	339 ft (103 m)
Beam	26 ft 6 in (8.08 m)
Draught	20 ft 11 in (6.38 m)
Propulsion	2 × 10,500 shp (7.8 MW) Brown-Curtis or Parsons geared steam turbines 2 × Yarrow boilers 4 × 1,440 hp (1,070 kW) electric motors 1 × 800 hp (600 kW) Vickers diesel generator for charging batteries on the surface 2 × 3-blade 7 ft 6 in (2.29 m) diameter screws
Speed	24 knots (44 km/h; 28 mph) surfaced 8 knots (15 km/h; 9.2 mph) submerged
Range	Surfaced : 800 nmi (1,500 km; 920 mi) at 24 kn (44 km/h; 28 mph) 12,500 nmi (23,200 km; 14,400 mi) at 10 kn (19 km/h; 12 mph) Submerged : 8 nmi (15 km; 9.2 mi) at 8 kn (15 km/h; 9.2 mph) 40 nmi (74 km; 46 mi) at 4 kn (7.4 km/h; 4.6 mph)
Complement	59 (6 officers and 53 ratings)
Armament	8 × 18 in (460 mm) torpedo tubes, (4 beam, 4 bow) 8 × spare torpedoes 2 × 18 in torpedo tubes fitted on deck (later removed) 2 × BL 4 in (100 mm) Mk.XI guns 1 × 3 in (76 mm) gun

HMS K4 was a British K-class submarine built by Vickers in Barrow-in-Furness. She was laid down on 28 June 1915 and commissioned on 1 January 1917, one year before the end of World War I.

Loss

K4 was lost on 31 January 1918 during the night time fleet exercises later known as the Battle of May Island (Operation E.C.1) when she was attached to the 13th Submarine Flotilla. While attempting to avoid a collision with K3, she became the victim of collisions with K6 and K7. She was lost with all hands. The wreck is designated as a protected place under the Protection of Military Remains Act 1986.