Decoy was one of six Daring-class destroyers ordered on 16 February 1945, which followed on from 10 ships ordered earlier.[2] Eight of the 16 Darings were cancelled in December 1945, before they were laid down, but construction of the remaining eight ships continued, while three more were built by Australia.[3][4]
Decoy was 390 feet 0 inches (118.87 m) long overall, 375 feet 0 inches (114.30 m) at the waterline and 366 feet 0 inches (111.56 m) between perpendiculars. She had a beam of 43 feet 0 inches (13.11 m) and a draught of 13 feet 0 inches (3.96 m) deep load. Displacement was 2,610 long tons (2,650 t) standard and 3,350 long tons (3,400 t) deep load.[7] The ship was of part-welded construction (some of the Darings were fully welded, but Yarrow did not have facilities to build fully welded ships), and Aluminium was used for internal bulkheads, in one of the first uses of this material in Royal Navy ships.[4] Two Babcock & Wilcox boilers supplied steam at 650 pounds per square inch (4,500,000 Pa) and 850 °F (454 °C) to two seats of English Electric double-reduction geared steam turbines, which in turn drove two propeller shafts. The machinery, which was laid out in the unit arrangement, was rated at 54,000 shaft horsepower (40,000 kW), giving a maximum speed of 34 knots (39 mph; 63 km/h).[8]
The ship was armed with three twin QF 4.5-inch (113 mm) Mark VI dual-purpose gun mounts, with a close-in anti-aircraft armament of three twin Bofors 40 mm mounts, with two stabilised STAAG mounts and one simpler, non-stabilised Mark V (or "Utility") mount. Two quintuple mounts for 21-inch (533 mm) torpedoes were carried, while anti-submarine armament consisted of a Squid anti-submarine mortar with 30 charges.[4][7]3⁄8 inch (9.5 mm) thick splinter armour was provided for the bridge, gun turrets and turret rings, while 1⁄4 inch (6.4 mm) plating protected cable runs.[9]
From 1960 to 1962 the destroyer undertook trials for the Royal Navy's new Sea Cat missile system, being fitted with a single quadruple launcher on the port rear side, which was removed at the end of the trials.[13][14]
By 1966 she was in reserve and completed a long refit in Portsmouth Dockyard and recommissioned again on 15 August 1967 for a general service commission, which included the West Indies and the Far East. Before sailing she attended Portsmouth Navy Days in that year.[16] In 1968 she escorted a Hong Kong-flagged ship to Gibraltar at the ship's Master's request after unrest.[17]
Commanding officers (Royal Navy)
Notable commanding officers include Captain Peter Hill-Norton (1956-1957) and Commander J J Black (1967-1969).
Prior to entering service with the Peruvian Navy she underwent a major refit by Cammell Laird at Birkenhead between 1970 and 1973. Work done during this refit included the following:
Rebuilding of the foremast for installation of the Plessey AWS-1 air-search radar
Installation of eight Exocet MM-38SSMs in place of the Close Range Blind Fire Director forward of X turret
After the rebuild was done, Ferré was commissioned into the Peruvian Navy in April 1973. Further work was done on the ship by SIMA dockyards in Callao as follows:
In 1975–76 the SquidASWmortar was removed and a helicopter landing deck fitted