


| System Name | HMS Belfast |
| Type / Role | Light Cruiser |
| Manufacturer | Harland and Wolff |
| Country of Origin | United Kingdom |
| In Service | 1939 to 1963 |
| Year Introduced | 1939 |
| Unit Cost | £2.14 million, 1939 value |
| Crew | Approx. 950 personnel |
| Length | 613 ft, 187 m |
| Beam (Width) | 63 ft, 19.2 m |
| Draft | 17 ft, 5.2 m |
| Displacement | 11,550 tons full load |
| Hull Material | Steel |
| Deck Configuration | Flush deck with four main gun turrets |
| Propulsion Type | Steam turbines |
| Engine Model | Parsons geared steam turbines |
| Power Output | Approx. 80,000 shaft horsepower |
| Maximum Speed | 32 knots |
| Range | Approx. 8,600 nautical miles at 13 knots |
| Endurance | Long range ocean deployment capable |
| Primary Radar | Type 284 gunnery radar |
| Radar Range | Up to 40 nautical miles |
| Sonar System | ASDIC sonar |
| Electro-Optical / IR System | None |
| Electronic Warfare Suite | Early WWII electronic countermeasures |
| Fire Control Radar | Type 284 |
| Main Gun | 12 × 6 inch Mk XXIII naval guns |
| Vertical Launch System (VLS) Cells | None |
| Missiles | None |
| Anti-Ship Missiles | None |
| Anti-Submarine Torpedoes | 2 × triple 21 inch torpedo tubes |
| Close-In Weapon System (CIWS) | None |
| Decoy Systems | Chaff systems in later service |
| Helicopter Capability | None |
| Hangar Capacity | None |
| UAV Operations | None |
| Flight Deck Size | Not applicable |
| Replenishment at Sea | Yes |
| Countermeasures | Chaff launchers, late service |
| ECM / ECCM | Early generation ECM |
| Missile Defense System | None |
| Combat Management System | Analog fire control computers |
| Communication Systems | Naval HF and VHF radio systems |
| Service Branch | Royal Navy |
| Primary Operator | United Kingdom |
| Operational History | Arctic convoys, Battle of North Cape, Normandy landings, Korean War |
| Notable Feature | Preserved museum ship on the River Thames |
HMS Belfast is one of the most well preserved warships of the Second World War era. Commissioned in 1939, the Royal Navy light cruiser played a key role in Arctic convoy escorts, the sinking of the German battleship Scharnhorst, and naval gunfire support during the Normandy landings. Later, she served in the Korean War before being preserved as a museum ship in London.
Designed as part of the Town class, HMS Belfast was built for fleet screening, trade protection, and surface engagements. Her main battery of twelve 6 inch guns, supported by dual purpose secondary weapons and anti aircraft guns, made her a formidable surface combatant for her time. The ship combined firepower, endurance, and radar equipped targeting systems that reflected rapid wartime naval innovation.
HMS Belfast was constructed by Harland and Wolff in Belfast, Northern Ireland. Built for the Royal Navy, she represented British naval engineering priorities on survivability and gunnery power during the late 1930s rearmament period.
Powered by oil fired boilers and steam turbines producing roughly 80,000 shaft horsepower, HMS Belfast reached a maximum speed of about 32 knots. Her operational range extended to approximately 8,600 nautical miles at cruising speed, enabling long Atlantic and Arctic deployments.
The estimated construction cost was about £2.14 million in late 1930s British currency, equivalent to significantly higher values in today’s terms when adjusted for inflation. The investment reflected the complexity of cruiser level firepower and armor protection before the missile age.
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