The Delhi sub-class was identical with the preceding ships except that their bows were raised for better seakeeping. The ships were long overall, with a beam of and a mean deep draught of. Displacement was at normal and at deep load. Despatch was powered by two Brown-Curtissteam turbines, each driving one propeller shaft, which produced a total of. The turbines used steam generated by six Yarrow boilers which gave her a speed of about. She carried tons of fuel oil. The ship had a crew of about 450 officers and other ranks. Despatch was armed with six centreline BL 6-inch Mk XII guns. One superfiring pair of guns was forward of the bridge, another pair were fore and aft of the two funnels and the last two were in the stern, with one gun superfiring over the rearmost gun. The two QF 4 inch Mk V naval gunanti-aircraft guns were positioned on elevated platforms between the funnels and the QF 2-pounder "pom-pom" AA guns were amidships on the upper deck. The ships were equipped with a dozen British 21-inch torpedo| torpedo tubes in four triple mounts, two on each broadside.
Construction and career
She was laid down by Fairfield Shipbuilding and Engineering Company on 8 July 1918, launched on 24 September 1919, towed to Chatham Dockyard, and completed there on 15 June 1922. Despatch had a relatively quiet wartime career, compared to her sisters. She was operating in the South Atlantic for the early part of the war, where she captured the German freighter and intercepted the German merchant ship. The crew of Trojascuttled her, however, before the ship could be captured. She was in the Mediterranean, escorting convoys in late 1940, and became involved in Operation White and the Battle of Cape Spartivento. By the battle of Cape Spartivento as part of Force "B", a sub-unit of Force "H", Gibraltar. Despatch was present at the Normandy landings in June 1944 under the command of Commander R.T. White D.S.O.**. She was the headquarters ship for the Mulberry harbours. Whilst at Mulberry 'B' Despatch was present for the visit of H.M. King George VI. For her HQ Ship role, Despatch had had all her original guns removed and replaced with 16 Bofors 40 mmAnti-Aircraft guns manned by army gunners from 127th Light Anti-Aircraft Regiment, Royal Artillery, to support her role as "Traffic Control" in building the Mulberry Harbour at Arromanches. Commander White was allocated landing pass "number one" for Arromanches. Despatch was reduced to reserve in January 1945, and sold on 5 April 1946 for scrapping. She arrived at the yards of Arnott Young, of Troon, Scotland on 5 May 1946 to be broken up.
