The turbine developed a total of 15,000 shaft horsepower (11,000 kW) and gave a maximum speed of 27 knots (50 km/h; 31 mph).

[3] Keppel was laid down by Yarrow Shipbuilders at their Scotstoun shipyard on 27 March 1953, launched on 31 August 1954 and completed on 6 July 1956.

[5] She paid off for an extended refit in March 1958, during which her hull was strengthened as a result of operating experience of ships of the class in heavy seas.

[8] In February 1973, Keppel was reduced to reserve, joining the Standby Squadron at Chatham.

[5][9] Keppel remained with the 2nd Frigate Squadron, serving in the training role, until November 1976.