HMS Oberon (P21)

HMS Oberon  was an of the Royal Navy.

Service History
Oberon was the first of the O-Class submarines. She was laid down on 24 September 1926 at the Chatham Dockyard. She was commissioned on 24 August 1927. On 11 October 1935, she collided with the destroyer HMS Thanet (H29) at Devonport. Placed in reserve in 1937, Oberon was recommissioned on 2 August 1939 and was used for training during World War II. She was decommissioned at Blyth on 5 July 1944 and was sold for scrap on 24 August 1945.