HMS Exmouth (F84)
 HMS Exmouth was a Royal Navy anti-submarine warfare frigate of the Blackwood or Type 14 class.Exmouth became the first major British warship to be powered by gas turbine engines alone when in 1966 she was taken in hand and was refitted with a combined gas or gas (COGOG) arrangement. The main reason behind the conversion of Exmouth was to trial the (then) new Marine Olympus which had been selected as the turbine for the Type 82 destroyer and the Type 19 high-speed anti-submarine frigate.