"R" Class Submarine (1918)

R 7, probably upon her acceptance for service.

A total of ten "R" Class Submarines were completed for the Royal Navy, especially designed to hunt other submarines.

Two units, R 5 and R 6, were cancelled.

Overview of 10 vessels
Citations for this data available on individual ship pages
Name	Builder	Laid Down	Launched	Completed	Fate
R 1	Chatham Royal Dockyard		25 Apr, 1918		Sold Jan, 1923
R 2	Chatham Royal Dockyard		25 Apr, 1918		Sold Feb, 1923
R 3	Chatham Royal Dockyard		8 Jun, 1918		Sold Feb, 1923
R 4	Chatham Royal Dockyard		8 Jun, 1918		Sold May, 1934
R 7	Vickers		14 May, 1918	Jun, 1918	Sold Feb, 1923
R 8	Vickers		28 Jun, 1918	Jul, 1918	Sold Feb, 1923
R 9	Armstrong, Whitworth & Company		12 Aug, 1918		Sold Feb, 1923
R 10	Armstrong, Whitworth & Company		5 Oct, 1918		Sold Feb, 1929
R 11	Cammell Laird		16 Mar, 1918	Jul, 1918	Sold Feb, 1923
R 12	Cammell Laird		9 Apr, 1918		Sold Feb, 1923

Radio

By war's end, all boats of "E" class and later were given 3 kilowatt Poulsen wireless sets, affording ranges of 200 miles submarine-to-submarine, and 300-400 miles between shore stations and submarines. Reception of shore stations of 400 miles was common, and high power shore stations could be received over 500-600 miles.

Torpedoes

• six 18-in tubes forward, twelve torpedoes

Guns

• None.

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).

"R" Class Submarine

R 1

R 2

R 3

R 4

R 7

R 8

R 9

R 10

R 11

R 12

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"M" Class

Submarines (UK)

Oxley Class

–>