HMS R4

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HMS R4 was a British R class submarine built at Chatham Dockyard. She was laid down on the 4 March 1917 and launched 8 June 1918. R4 was commissioned on the 23 August 1919. She came too late to see any combat in World War I like most of the other R class submarines.

R4 was the only boat to survive through to the 1930s. Additions to her casing produced slightly better sea keeping at the cost of a reduced speed from 15 knots submerged to 13 knots. R4 was used as a fast underwater target at the Portland anti-submarine school until 1934, then sold on 26 May 1934 to Young, Sunderland.

[edit] References

• Submarines, war beneath the waves, from 1776 to the present day. By Robert Hutchinson.
• Colledge, J. J. and Warlow, Ben (2006). Ships of the Royal Navy: the complete record of all fighting ships of the Royal Navy, Rev. ed., London: Chatham. ISBN 9781861762818. OCLC 67375475.