X 1

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X 1

Built By:	Chatham Dockyard (Medway)
Build Group:	X1
Fate:	Laid up and scrapped in 12/12/1936

X1 showing bulbous bow and forward turret

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Commanders

1927:	Commander	Charles Henry Allen	DSO
1933:	Commander	John Domvile Auchmuty Musters	DSC

X1 was a cruiser submarine. At the time of her completion in 1925 she was the largest submarine in the world at 363ft long and over 3000tons.

She mounted 4 5.2 in guns in twin turrets and six torpedo tubes.

Her engines were very troublesome and she spent most of her life in dockyard hands before being placed in reserve.

Special provision had to be made for her in the London Treaty.

Submarine X1 on steam trials (1925)

Read

Chapter 13: Cruiser-Submarine X1

The Development of HM Submarines from Holland 1 (1901) to Porpoise (1930)

Events

02-11-1921	Laid Down

16-06-1923	Launched

23-09-1925	Completed

12-12-1936	Laid up and scrapped

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Displacement (Surfaced)	2,820 tons
(Submerged)	3,700 tons
Length	363 ft 6 in
Beam	29 ft 9 in
Draught	15 ft
Propulsion	2 x 8-cylinder Admiralty diesel engines, 3,000 hp (2,200 kW) total
	2 x MAN diesel engines, 1,200 hp (890 kW)
	2 x GEC electric motors, 1,000 horsepower (750 kW) each
Speed
Surfaced	19.5 knots
Submerged	9 knots
Endurance
Surfaced	12,400 nmi at 12 knots, 18,700 nmi at 8 knots
Submerged	50 nmi at 4 knots
Test depth	350 ft
Complement	111 (11 officers and 100 ratings)
Armament	6 x 21 inch bow torpedo tubes
	4 x 5.2 inch/42 QF Mk I guns in 2 twin turrets
	2 x 0.303 in machine guns

RN Subs

X 1

Commanders

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X1 Specification

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Shark (N 54)

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Class:	1935 - 1970: Improved S Class
Built By:	Chatham Dockyard (Medway)
Build Group:	S2
Fate:
HMS Shark was sunk on 6th July 1940 after being caught on the surface off the coast of Norway. Several bombs exploded close astern and severely damaged the propulsion. The Submarine dived in an attempt to get to safety but resurfaced in order to charge up the batteries and attempt to escape under cover of darkness. Both engines were restarted but the Port Engine was out of line and the rudder was jammed hard to port. The Submarine was relocated by enemy aircraft and attacked again. Unable to dive owing to a lack of high-pressure air, a low battery and flooding the Commanding Officer attempted to fight his way out but was forced, eventually, to surrender. 27 of the crew were uninjured, 12 (including the Commanding Officer) were wounded and 2 were killed. HMS Shark sank as the Germans were attempting to tow it to Stavanger.