HMS Diadem (84)

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HMS Diadem
HMS Diadem on patrolling on the Arctic convoys in 1944
Career The White Ensign of the Royal Navy.
Built By: R. and W. Hawthorn, Leslie and Company, Limited (Hebburn-on-Tyne, UK)
Laid down: 15 December 1939
Launched: 21 August 1942
Commissioned: 6 January 1944
Paid off: 1950
Reserve: In reserve between 1950 to 1956
Fate: Sold to the Pakistan Navy on 29 February 1956. After a refit she was commissioned by the Pakistan Navy on 5 July 1957, being renamed Babur. Later renamed Jahangir.
Penant: 84
General Characteristics
Type: Light (Anti Aircraft) Cruiser
Displacement: 5,950 tons standard

7,200 tons full load

Dimensions: 485 pp, 512 by 50.5 by 15.0 ft (156 by 15.4 by 4.6 m)
Armament: Original configuration:


8 x 5.25 in (133 mm) dual guns,
6 x 20 mm dual AA guns,
3 x 2 pdr (37 mm/40 mm) pom-poms quad guns,
2 x 21 in (533 mm) triple Torpedo Tubes.

Early 1945 - Early 1956 configuration:


8 x 5.25 in (133 mm) dual guns,
8 x 20 mm dual AA guns,
8 x 20 mm single AA guns,
3 x 2 pdr (37 mm/40 mm) pom-poms quad guns,
2 x 21 in (533 mm) triple Torpedo Tubes.

Armour: Original configuration:


Belt: 3 inch,
Deck: 1 inch,
Magazines: 2 inch,
Bulkheads: 1 inch.

Propulsion: Parsons geared turbines, 4 shafts, 4 Admiralty 3-drum boilers, 62,000 shp (46 MW) = 32.25 knots maximum speed
Range: 2,414 km (1,500 miles) at 30 knots, 6,824 (4,240 miles) at 16 knots ; 1,100 tons fuel oil
Complement: 530

HMS Diadem was a Bellona-class cruiser of the Royal Navy. She was a modified Dido design with only 4 turrets but improved AA armament - aka Dido Group 2. She was built by R. and W. Hawthorn, Leslie and Company, Limited (Hebburn-on-Tyne), UK), with the keel being laid down on 15 December 1939. She was launched on 21 August 1942, and commissioned 6 January 1944.


See HMS Diadem for other ships of this name.


Royal Navy
Dido group
Argonaut | Bonaventure | Charybydis | Cleopatra | Dido | Euryalus | Hermione | Naiad | Phoebe | Scylla | Sirius
Bellona group
Bellona | Black Prince | Diadem | Royalist | Spartan
Royal New Zealand Navy
Bellona | Black Prince | Royalist
Pakistan Navy
Babur (ex-Diadem)

List of cruisers of the Royal Navy