"D" Class Submarine (1908)

The Royal Navy's eight "D" Class Submarines entered service between 1908 and 1911. The Royal Navy considered these to be "patrol" (as opposed to coastal or fleet) submarines.

They were significantly larger than the preceding classes and, with twice the endurance offered the British their first plausible ocean-going submarines.

Overview of 8 vessels
Citations for this data available on individual ship pages
Name	Builder	Laid Down	Launched	Completed	Fate
D 1	Vickers		16 May, 1908		Expended 23 Oct, 1918
D 2	Vickers		25 May, 1910		Sunk 25 Nov, 1914
D 3	Vickers		17 Oct, 1910		Sunk 15 Mar, 1918
D 4	Vickers		27 May, 1911		Sold Dec, 1921
D 5	Vickers		28 Aug, 1911		Mined 3 Nov, 1914
D 6	Vickers		23 Oct, 1911		Torpedoed 26 Jun, 1918
D 7	Chatham Royal Dockyard		14 Jan, 1911		Sold Dec, 1921
D 8	Chatham Royal Dockyard		23 Sep, 1911		Sold Dec, 1921

Performance

The Grand Fleet Battle Orders specified that the top speed on the surface was 13 knots, but that a more realistic "sea-going speed" was 11 knots.

Torpedoes

• three 18-in tubes (two forward and one stern), six torpedoes

Guns

in D 4 only:

• one 12-pdr

See Also

• Wikipedia

Bibliography

• Gray, Randal (editor) (1985). Conway's All the World's Fighting Ships 1906–1921. London: Conway Maritime Press. (on Amazon.com and Amazon.co.uk).

"D" Class Submarine

Vickers Boats

D 1

D 2

D 3

D 4

D 5

D 6

Chatham Boats

D 7

D 8

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"C" Class

Submarines (UK)

"E" Class

–>